Merge branch 'master' of /usr/src/ntfs-2.6/

108 files changed, 1477 insertions, 1127 deletions

diff --git a/fs/9p/9p.c b/fs/9p/9p.c
index 1a6d08761f39..f86a28d1d6a6 100644
--- a/fs/9p/9p.c
+++ b/fs/9p/9p.c
@@ -111,7 +111,6 @@ static void v9fs_t_clunk_cb(void *a, struct v9fs_fcall *tc,
 	if (!rc)
 		return;
 
-	dprintk(DEBUG_9P, "tcall id %d rcall id %d\n", tc->id, rc->id);
 	v9ses = a;
 	if (rc->id == RCLUNK)
 		v9fs_put_idpool(fid, &v9ses->fidpool);
diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index eda449778fa5..c4d13bf904d2 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -1,7 +1,7 @@
 /*
  * V9FS FID Management
  *
- *  Copyright (C) 2005 by Eric Van Hensbergen <ericvh@gmail.com>
+ *  Copyright (C) 2005, 2006 by Eric Van Hensbergen <ericvh@gmail.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -40,7 +40,7 @@
  *
  */
 
-static int v9fs_fid_insert(struct v9fs_fid *fid, struct dentry *dentry)
+int v9fs_fid_insert(struct v9fs_fid *fid, struct dentry *dentry)
 {
 	struct list_head *fid_list = (struct list_head *)dentry->d_fsdata;
 	dprintk(DEBUG_9P, "fid %d (%p) dentry %s (%p)\n", fid->fid, fid,
@@ -57,7 +57,6 @@ static int v9fs_fid_insert(struct v9fs_fid *fid, struct dentry *dentry)
 	}
 
 	fid->uid = current->uid;
-	fid->pid = current->pid;
 	list_add(&fid->list, fid_list);
 	return 0;
 }
@@ -68,14 +67,11 @@ static int v9fs_fid_insert(struct v9fs_fid *fid, struct dentry *dentry)
  *
  */
 
-struct v9fs_fid *v9fs_fid_create(struct dentry *dentry,
-	struct v9fs_session_info *v9ses, int fid, int create)
+struct v9fs_fid *v9fs_fid_create(struct v9fs_session_info *v9ses, int fid)
 {
 	struct v9fs_fid *new;
 
-	dprintk(DEBUG_9P, "fid create dentry %p, fid %d, create %d\n",
-		dentry, fid, create);
-
+	dprintk(DEBUG_9P, "fid create fid %d\n", fid);
 	new = kmalloc(sizeof(struct v9fs_fid), GFP_KERNEL);
 	if (new == NULL) {
 		dprintk(DEBUG_ERROR, "Out of Memory\n");
@@ -85,19 +81,13 @@ struct v9fs_fid *v9fs_fid_create(struct dentry *dentry,
 	new->fid = fid;
 	new->v9ses = v9ses;
 	new->fidopen = 0;
-	new->fidcreate = create;
 	new->fidclunked = 0;
 	new->iounit = 0;
 	new->rdir_pos = 0;
 	new->rdir_fcall = NULL;
+	INIT_LIST_HEAD(&new->list);
 
-	if (v9fs_fid_insert(new, dentry) == 0)
-		return new;
-	else {
-		dprintk(DEBUG_ERROR, "Problems inserting to dentry\n");
-		kfree(new);
-		return NULL;
-	}
+	return new;
 }
 
 /**
@@ -113,140 +103,29 @@ void v9fs_fid_destroy(struct v9fs_fid *fid)
 }
 
 /**
- * v9fs_fid_walk_up - walks from the process current directory
- * 	up to the specified dentry.
- */
-static struct v9fs_fid *v9fs_fid_walk_up(struct dentry *dentry)
-{
-	int fidnum, cfidnum, err;
-	struct v9fs_fid *cfid;
-	struct dentry *cde;
-	struct v9fs_session_info *v9ses;
-
-	v9ses = v9fs_inode2v9ses(current->fs->pwd->d_inode);
-	cfid = v9fs_fid_lookup(current->fs->pwd);
-	if (cfid == NULL) {
-		dprintk(DEBUG_ERROR, "process cwd doesn't have a fid\n");
-		return ERR_PTR(-ENOENT);
-	}
-
-	cfidnum = cfid->fid;
-	cde = current->fs->pwd;
-	/* TODO: take advantage of multiwalk */
-
-	fidnum = v9fs_get_idpool(&v9ses->fidpool);
-	if (fidnum < 0) {
-		dprintk(DEBUG_ERROR, "could not get a new fid num\n");
-		err = -ENOENT;
-		goto clunk_fid;
-	}
-
-	while (cde != dentry) {
-		if (cde == cde->d_parent) {
-			dprintk(DEBUG_ERROR, "can't find dentry\n");
-			err = -ENOENT;
-			goto clunk_fid;
-		}
-
-		err = v9fs_t_walk(v9ses, cfidnum, fidnum, "..", NULL);
-		if (err < 0) {
-			dprintk(DEBUG_ERROR, "problem walking to parent\n");
-			goto clunk_fid;
-		}
-
-		cfidnum = fidnum;
-		cde = cde->d_parent;
-	}
-
-	return v9fs_fid_create(dentry, v9ses, fidnum, 0);
-
-clunk_fid:
-	v9fs_t_clunk(v9ses, fidnum);
-	return ERR_PTR(err);
-}
-
-/**
  * v9fs_fid_lookup - retrieve the right fid from a  particular dentry
  * @dentry: dentry to look for fid in
  * @type: intent of lookup (operation or traversal)
  *
- * search list of fids associated with a dentry for a fid with a matching
- * thread id or uid.  If that fails, look up the dentry's parents to see if you
- * can find a matching fid.
+ * find a fid in the dentry
+ *
+ * TODO: only match fids that have the same uid as current user
  *
  */
 
 struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry)
 {
 	struct list_head *fid_list = (struct list_head *)dentry->d_fsdata;
-	struct v9fs_fid *current_fid = NULL;
-	struct v9fs_fid *temp = NULL;
 	struct v9fs_fid *return_fid = NULL;
 
 	dprintk(DEBUG_9P, " dentry: %s (%p)\n", dentry->d_iname, dentry);
 
-	if (fid_list) {
-		list_for_each_entry_safe(current_fid, temp, fid_list, list) {
-			if (!current_fid->fidcreate) {
-				return_fid = current_fid;
-				break;
-			}
-		}
-
-		if (!return_fid)
-			return_fid = current_fid;
-	}
-
-	/* we are at the root but didn't match */
-	if ((!return_fid) && (dentry->d_parent == dentry)) {
-		/* TODO: clone attach with new uid */
-		return_fid = current_fid;
-	}
+	if (fid_list)
+		return_fid = list_entry(fid_list->next, struct v9fs_fid, list);
 
 	if (!return_fid) {
-		struct dentry *par = current->fs->pwd->d_parent;
-		int count = 1;
-		while (par != NULL) {
-			if (par == dentry)
-				break;
-			count++;
-			if (par == par->d_parent) {
-				dprintk(DEBUG_ERROR,
-					"got to root without finding dentry\n");
-				break;
-			}
-			par = par->d_parent;
-		}
-
-/* XXX - there may be some duplication we can get rid of */
-		if (par == dentry) {
-			return_fid = v9fs_fid_walk_up(dentry);
-			if (IS_ERR(return_fid))
-				return_fid = NULL;
-		}
+		dprintk(DEBUG_ERROR, "Couldn't find a fid in dentry\n");
 	}
 
 	return return_fid;
 }
-
-struct v9fs_fid *v9fs_fid_get_created(struct dentry *dentry)
-{
-	struct list_head *fid_list;
-	struct v9fs_fid *fid, *ftmp, *ret;
-
-	dprintk(DEBUG_9P, " dentry: %s (%p)\n", dentry->d_iname, dentry);
-	fid_list = (struct list_head *)dentry->d_fsdata;
-	ret = NULL;
-	if (fid_list) {
-		list_for_each_entry_safe(fid, ftmp, fid_list, list) {
-			if (fid->fidcreate && fid->pid == current->pid) {
-				list_del(&fid->list);
-				ret = fid;
-				break;
-			}
-		}
-	}
-
-	dprintk(DEBUG_9P, "return %p\n", ret);
-	return ret;
-}
diff --git a/fs/9p/fid.h b/fs/9p/fid.h
index 84c673a44c83..1fc2dd08d75a 100644
--- a/fs/9p/fid.h
+++ b/fs/9p/fid.h
@@ -33,7 +33,6 @@ struct v9fs_fid {
 
 	u32 fid;
 	unsigned char fidopen;	  /* set when fid is opened */
-	unsigned char fidcreate;  /* set when fid was just created */
 	unsigned char fidclunked; /* set when fid has already been clunked */
 
 	struct v9fs_qid qid;
@@ -45,7 +44,6 @@ struct v9fs_fid {
 	struct v9fs_fcall *rdir_fcall;
 
 	/* management stuff */
-	pid_t pid;		/* thread associated with this fid */
 	uid_t uid;		/* user associated with this fid */
 
 	/* private data */
@@ -56,5 +54,5 @@ struct v9fs_fid {
 struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry);
 struct v9fs_fid *v9fs_fid_get_created(struct dentry *);
 void v9fs_fid_destroy(struct v9fs_fid *fid);
-struct v9fs_fid *v9fs_fid_create(struct dentry *,
-	struct v9fs_session_info *v9ses, int fid, int create);
+struct v9fs_fid *v9fs_fid_create(struct v9fs_session_info *, int fid);
+int v9fs_fid_insert(struct v9fs_fid *fid, struct dentry *dentry);
diff --git a/fs/9p/trans_fd.c b/fs/9p/trans_fd.c
index 1a28ef97a3d1..5b2ce21b10fa 100644
--- a/fs/9p/trans_fd.c
+++ b/fs/9p/trans_fd.c
@@ -80,6 +80,7 @@ static int v9fs_fd_send(struct v9fs_transport *trans, void *v, int len)
 	if (!trans || trans->status != Connected || !ts)
 		return -EIO;
 
+	oldfs = get_fs();
 	set_fs(get_ds());
 	/* The cast to a user pointer is valid due to the set_fs() */
 	ret = vfs_write(ts->out_file, (void __user *)v, len, &ts->out_file->f_pos);
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index ef3386549140..61352491ba36 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -397,6 +397,7 @@ v9fs_session_init(struct v9fs_session_info *v9ses,
 	}
 
 	if (v9ses->afid != ~0) {
+		dprintk(DEBUG_ERROR, "afid not equal to ~0\n");
 		if (v9fs_t_clunk(v9ses, v9ses->afid))
 			dprintk(DEBUG_ERROR, "clunk failed\n");
 	}
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index 69cf2905dc90..a759278acaae 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -51,3 +51,4 @@ int v9fs_dir_release(struct inode *inode, struct file *filp);
 int v9fs_file_open(struct inode *inode, struct file *file);
 void v9fs_inode2stat(struct inode *inode, struct v9fs_stat *stat);
 void v9fs_dentry_release(struct dentry *);
+int v9fs_uflags2omode(int uflags);
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index 2dd806dac9f1..12c9cc926b71 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -43,47 +43,18 @@
 #include "fid.h"
 
 /**
- * v9fs_dentry_validate - VFS dcache hook to validate cache
- * @dentry:  dentry that is being validated
- * @nd: path data
+ * v9fs_dentry_delete - called when dentry refcount equals 0
+ * @dentry:  dentry in question
  *
- * dcache really shouldn't be used for 9P2000 as at all due to
- * potential attached semantics to directory traversal (walk).
- *
- * FUTURE: look into how to use dcache to allow multi-stage
- * walks in Plan 9 & potential for better dcache operation which
- * would remain valid for Plan 9 semantics.  Older versions
- * had validation via stat for those interested.  However, since
- * stat has the same approximate overhead as walk there really
- * is no difference.  The only improvement would be from a
- * time-decay cache like NFS has and that undermines the
- * synchronous nature of 9P2000.
+ * By returning 1 here we should remove cacheing of unused
+ * dentry components.
  *
  */
 
-static int v9fs_dentry_validate(struct dentry *dentry, struct nameidata *nd)
+int v9fs_dentry_delete(struct dentry *dentry)
 {
-	struct dentry *dc = current->fs->pwd;
-
-	dprintk(DEBUG_VFS, "dentry: %s (%p)\n", dentry->d_iname, dentry);
-	if (v9fs_fid_lookup(dentry)) {
-		dprintk(DEBUG_VFS, "VALID\n");
-		return 1;
-	}
-
-	while (dc != NULL) {
-		if (dc == dentry) {
-			dprintk(DEBUG_VFS, "VALID\n");
-			return 1;
-		}
-		if (dc == dc->d_parent)
-			break;
-
-		dc = dc->d_parent;
-	}
-
-	dprintk(DEBUG_VFS, "INVALID\n");
-	return 0;
+	dprintk(DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry);
+	return 1;
 }
 
 /**
@@ -118,6 +89,6 @@ void v9fs_dentry_release(struct dentry *dentry)
 }
 
 struct dentry_operations v9fs_dentry_operations = {
-	.d_revalidate = v9fs_dentry_validate,
+	.d_delete = v9fs_dentry_delete,
 	.d_release = v9fs_dentry_release,
 };
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index ae6d032b9b59..cd5eeb032d64 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -202,7 +202,6 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
 		filp->private_data = NULL;
 	}
 
-	d_drop(filp->f_dentry);
 	return 0;
 }
 
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index c7e14d917215..de3a129698da 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -53,94 +53,70 @@
 int v9fs_file_open(struct inode *inode, struct file *file)
 {
 	struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
-	struct v9fs_fid *v9fid, *fid;
+	struct v9fs_fid *vfid;
 	struct v9fs_fcall *fcall = NULL;
-	int open_mode = 0;
-	unsigned int iounit = 0;
-	int newfid = -1;
-	long result = -1;
+	int omode;
+	int fid = V9FS_NOFID;
+	int err;
 
 	dprintk(DEBUG_VFS, "inode: %p file: %p \n", inode, file);
 
-	v9fid = v9fs_fid_get_created(file->f_dentry);
-	if (!v9fid)
-		v9fid = v9fs_fid_lookup(file->f_dentry);
-
-	if (!v9fid) {
+	vfid = v9fs_fid_lookup(file->f_dentry);
+	if (!vfid) {
 		dprintk(DEBUG_ERROR, "Couldn't resolve fid from dentry\n");
 		return -EBADF;
 	}
 
-	if (!v9fid->fidcreate) {
-		fid = kmalloc(sizeof(struct v9fs_fid), GFP_KERNEL);
-		if (fid == NULL) {
-			dprintk(DEBUG_ERROR, "Out of Memory\n");
-			return -ENOMEM;
-		}
-
-		fid->fidopen = 0;
-		fid->fidcreate = 0;
-		fid->fidclunked = 0;
-		fid->iounit = 0;
-		fid->v9ses = v9ses;
-
-		newfid = v9fs_get_idpool(&v9ses->fidpool);
-		if (newfid < 0) {
+	fid = v9fs_get_idpool(&v9ses->fidpool);
+	if (fid < 0) {
 			eprintk(KERN_WARNING, "newfid fails!\n");
 			return -ENOSPC;
 		}
 
-		result =
-		    v9fs_t_walk(v9ses, v9fid->fid, newfid, NULL, NULL);
-
-		if (result < 0) {
-			v9fs_put_idpool(newfid, &v9ses->fidpool);
+	err = v9fs_t_walk(v9ses, vfid->fid, fid, NULL, NULL);
+	if (err < 0) {
 			dprintk(DEBUG_ERROR, "rewalk didn't work\n");
-			return -EBADF;
+		goto put_fid;
+	}
+
+	vfid = kmalloc(sizeof(struct v9fs_fid), GFP_KERNEL);
+	if (vfid == NULL) {
+		dprintk(DEBUG_ERROR, "out of memory\n");
+		goto clunk_fid;
 		}
 
-		fid->fid = newfid;
-		v9fid = fid;
 		/* TODO: do special things for O_EXCL, O_NOFOLLOW, O_SYNC */
 		/* translate open mode appropriately */
-		open_mode = file->f_flags & 0x3;
+	omode = v9fs_uflags2omode(file->f_flags);
+	err = v9fs_t_open(v9ses, fid, omode, &fcall);
+	if (err < 0) {
+		PRINT_FCALL_ERROR("open failed", fcall);
+		goto destroy_vfid;
+	}
 
-		if (file->f_flags & O_EXCL)
-			open_mode |= V9FS_OEXCL;
+	file->private_data = vfid;
+	vfid->fid = fid;
+	vfid->fidopen = 1;
+	vfid->fidclunked = 0;
+	vfid->iounit = fcall->params.ropen.iounit;
+	vfid->rdir_pos = 0;
+	vfid->rdir_fcall = NULL;
+	vfid->filp = file;
+	kfree(fcall);
 
-		if (v9ses->extended) {
-			if (file->f_flags & O_TRUNC)
-				open_mode |= V9FS_OTRUNC;
+	return 0;
 
-			if (file->f_flags & O_APPEND)
-				open_mode |= V9FS_OAPPEND;
-		}
+destroy_vfid:
+	v9fs_fid_destroy(vfid);
 
-		result = v9fs_t_open(v9ses, newfid, open_mode, &fcall);
-		if (result < 0) {
-			PRINT_FCALL_ERROR("open failed", fcall);
-			kfree(fcall);
-			return result;
-		}
+clunk_fid:
+	v9fs_t_clunk(v9ses, fid);
 
-		iounit = fcall->params.ropen.iounit;
+put_fid:
+	v9fs_put_idpool(fid, &v9ses->fidpool);
 		kfree(fcall);
-	} else {
-		/* create case */
-		newfid = v9fid->fid;
-		iounit = v9fid->iounit;
-		v9fid->fidcreate = 0;
-	}
-
-	file->private_data = v9fid;
-
-	v9fid->rdir_pos = 0;
-	v9fid->rdir_fcall = NULL;
-	v9fid->fidopen = 1;
-	v9fid->filp = file;
-	v9fid->iounit = iounit;
 
-	return 0;
+	return err;
 }
 
 /**
@@ -289,9 +265,7 @@ v9fs_file_write(struct file *filp, const char __user * data,
 		total += result;
 	} while (count);
 
-	if(inode->i_mapping->nrpages)
 		invalidate_inode_pages2(inode->i_mapping);
-
 	return total;
 }
 
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 63e5b0398e8b..651a9e14d9a9 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -125,6 +125,38 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
 	return res;
 }
 
+int v9fs_uflags2omode(int uflags)
+{
+	int ret;
+
+	ret = 0;
+	switch (uflags&3) {
+	default:
+	case O_RDONLY:
+		ret = V9FS_OREAD;
+		break;
+
+	case O_WRONLY:
+		ret = V9FS_OWRITE;
+		break;
+
+	case O_RDWR:
+		ret = V9FS_ORDWR;
+		break;
+	}
+
+	if (uflags & O_EXCL)
+		ret |= V9FS_OEXCL;
+
+	if (uflags & O_TRUNC)
+		ret |= V9FS_OTRUNC;
+
+	if (uflags & O_APPEND)
+		ret |= V9FS_OAPPEND;
+
+	return ret;
+}
+
 /**
  * v9fs_blank_wstat - helper function to setup a 9P stat structure
  * @v9ses: 9P session info (for determining extended mode)
@@ -163,7 +195,7 @@ v9fs_blank_wstat(struct v9fs_wstat *wstat)
 
 struct inode *v9fs_get_inode(struct super_block *sb, int mode)
 {
-	struct inode *inode = NULL;
+	struct inode *inode;
 	struct v9fs_session_info *v9ses = sb->s_fs_info;
 
 	dprintk(DEBUG_VFS, "super block: %p mode: %o\n", sb, mode);
@@ -222,171 +254,133 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
 	return inode;
 }
 
-/**
- * v9fs_create - helper function to create files and directories
- * @dir: directory inode file is being created in
- * @file_dentry: dentry file is being created in
- * @perm: permissions file is being created with
- * @open_mode: resulting open mode for file
- *
- */
-
 static int
-v9fs_create(struct inode *dir,
-	    struct dentry *file_dentry,
-	    unsigned int perm, unsigned int open_mode)
+v9fs_create(struct v9fs_session_info *v9ses, u32 pfid, char *name,
+	u32 perm, u8 mode, u32 *fidp, struct v9fs_qid *qid, u32 *iounit)
 {
-	struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
-	struct super_block *sb = dir->i_sb;
-	struct v9fs_fid *dirfid =
-	    v9fs_fid_lookup(file_dentry->d_parent);
-	struct v9fs_fid *fid = NULL;
-	struct inode *file_inode = NULL;
-	struct v9fs_fcall *fcall = NULL;
-	struct v9fs_qid qid;
-	int dirfidnum = -1;
-	long newfid = -1;
-	int result = 0;
-	unsigned int iounit = 0;
-	int wfidno = -1;
+	u32 fid;
 	int err;
+	struct v9fs_fcall *fcall;
 
-	perm = unixmode2p9mode(v9ses, perm);
-
-	dprintk(DEBUG_VFS, "dir: %p dentry: %p perm: %o mode: %o\n", dir,
-		file_dentry, perm, open_mode);
-
-	if (!dirfid)
-		return -EBADF;
-
-	dirfidnum = dirfid->fid;
-	if (dirfidnum < 0) {
-		dprintk(DEBUG_ERROR, "No fid for the directory #%lu\n",
-			dir->i_ino);
-		return -EBADF;
-	}
-
-	if (file_dentry->d_inode) {
-		dprintk(DEBUG_ERROR,
-			"Odd. There is an inode for dir %lu, name :%s:\n",
-			dir->i_ino, file_dentry->d_name.name);
-		return -EEXIST;
-	}
-
-	newfid = v9fs_get_idpool(&v9ses->fidpool);
-	if (newfid < 0) {
+	fid = v9fs_get_idpool(&v9ses->fidpool);
+	if (fid < 0) {
 		eprintk(KERN_WARNING, "no free fids available\n");
 		return -ENOSPC;
 	}
 
-	result = v9fs_t_walk(v9ses, dirfidnum, newfid, NULL, &fcall);
-	if (result < 0) {
+	err = v9fs_t_walk(v9ses, pfid, fid, NULL, &fcall);
+	if (err < 0) {
 		PRINT_FCALL_ERROR("clone error", fcall);
-		v9fs_put_idpool(newfid, &v9ses->fidpool);
-		newfid = -1;
-		goto CleanUpFid;
+		goto error;
 	}
-
 	kfree(fcall);
-	fcall = NULL;
 
-	result = v9fs_t_create(v9ses, newfid, (char *)file_dentry->d_name.name,
-			       perm, open_mode, &fcall);
-	if (result < 0) {
+	err = v9fs_t_create(v9ses, fid, name, perm, mode, &fcall);
+	if (err < 0) {
 		PRINT_FCALL_ERROR("create fails", fcall);
-		goto CleanUpFid;
+		goto error;
 	}
 
-	iounit = fcall->params.rcreate.iounit;
-	qid = fcall->params.rcreate.qid;
+	if (iounit)
+		*iounit = fcall->params.rcreate.iounit;
+
+	if (qid)
+		*qid = fcall->params.rcreate.qid;
+
+	if (fidp)
+		*fidp = fid;
+
 	kfree(fcall);
-	fcall = NULL;
+	return 0;
 
-	if (!(perm&V9FS_DMDIR)) {
-		fid = v9fs_fid_create(file_dentry, v9ses, newfid, 1);
-		dprintk(DEBUG_VFS, "fid %p %d\n", fid, fid->fidcreate);
-		if (!fid) {
-			result = -ENOMEM;
-			goto CleanUpFid;
-		}
+error:
+	if (fid >= 0)
+		v9fs_put_idpool(fid, &v9ses->fidpool);
 
-		fid->qid = qid;
-		fid->iounit = iounit;
-	} else {
-		err = v9fs_t_clunk(v9ses, newfid);
-		newfid = -1;
-		if (err < 0)
-			dprintk(DEBUG_ERROR, "clunk for mkdir failed: %d\n", err);
-	}
+	kfree(fcall);
+	return err;
+}
+
+static struct v9fs_fid*
+v9fs_clone_walk(struct v9fs_session_info *v9ses, u32 fid, struct dentry *dentry)
+{
+	int err;
+	u32 nfid;
+	struct v9fs_fid *ret;
+	struct v9fs_fcall *fcall;
 
-	/* walk to the newly created file and put the fid in the dentry */
-	wfidno = v9fs_get_idpool(&v9ses->fidpool);
-	if (wfidno < 0) {
+	nfid = v9fs_get_idpool(&v9ses->fidpool);
+	if (nfid < 0) {
 		eprintk(KERN_WARNING, "no free fids available\n");
-		return -ENOSPC;
+		return ERR_PTR(-ENOSPC);
 	}
 
-	result = v9fs_t_walk(v9ses, dirfidnum, wfidno,
-		(char *) file_dentry->d_name.name, &fcall);
-	if (result < 0) {
-		PRINT_FCALL_ERROR("clone error", fcall);
-		v9fs_put_idpool(wfidno, &v9ses->fidpool);
-		wfidno = -1;
-		goto CleanUpFid;
+	err = v9fs_t_walk(v9ses, fid, nfid, (char *) dentry->d_name.name,
+		&fcall);
+
+	if (err < 0) {
+		PRINT_FCALL_ERROR("walk error", fcall);
+		v9fs_put_idpool(nfid, &v9ses->fidpool);
+		goto error;
 	}
+
 	kfree(fcall);
 	fcall = NULL;
+	ret = v9fs_fid_create(v9ses, nfid);
+	if (!ret) {
+		err = -ENOMEM;
+		goto clunk_fid;
+	}
 
-	if (!v9fs_fid_create(file_dentry, v9ses, wfidno, 0)) {
-		v9fs_put_idpool(wfidno, &v9ses->fidpool);
-
-		goto CleanUpFid;
+	err = v9fs_fid_insert(ret, dentry);
+	if (err < 0) {
+		v9fs_fid_destroy(ret);
+		goto clunk_fid;
 	}
 
-	if ((perm & V9FS_DMSYMLINK) || (perm & V9FS_DMLINK) ||
-	    (perm & V9FS_DMNAMEDPIPE) || (perm & V9FS_DMSOCKET) ||
-	    (perm & V9FS_DMDEVICE))
-		return 0;
+	return ret;
 
-	result = v9fs_t_stat(v9ses, wfidno, &fcall);
-	if (result < 0) {
-		PRINT_FCALL_ERROR("stat error", fcall);
-		goto CleanUpFid;
-	}
+clunk_fid:
+	v9fs_t_clunk(v9ses, nfid);
 
+error:
+	kfree(fcall);
+	return ERR_PTR(err);
+}
+
+struct inode *
+v9fs_inode_from_fid(struct v9fs_session_info *v9ses, u32 fid,
+	struct super_block *sb)
+{
+	int err, umode;
+	struct inode *ret;
+	struct v9fs_fcall *fcall;
 
-	file_inode = v9fs_get_inode(sb,
-		p9mode2unixmode(v9ses, fcall->params.rstat.stat.mode));
+	ret = NULL;
+	err = v9fs_t_stat(v9ses, fid, &fcall);
+	if (err) {
+		PRINT_FCALL_ERROR("stat error", fcall);
+		goto error;
+	}
 
-	if ((!file_inode) || IS_ERR(file_inode)) {
-		dprintk(DEBUG_ERROR, "create inode failed\n");
-		result = -EBADF;
-		goto CleanUpFid;
+	umode = p9mode2unixmode(v9ses, fcall->params.rstat.stat.mode);
+	ret = v9fs_get_inode(sb, umode);
+	if (IS_ERR(ret)) {
+		err = PTR_ERR(ret);
+		ret = NULL;
+		goto error;
 	}
 
-	v9fs_stat2inode(&fcall->params.rstat.stat, file_inode, sb);
+	v9fs_stat2inode(&fcall->params.rstat.stat, ret, sb);
 	kfree(fcall);
-	fcall = NULL;
-	file_dentry->d_op = &v9fs_dentry_operations;
-	d_instantiate(file_dentry, file_inode);
-
-	return 0;
+	return ret;
 
-      CleanUpFid:
+error:
 	kfree(fcall);
-	fcall = NULL;
+	if (ret)
+		iput(ret);
 
-	if (newfid >= 0) {
- 		err = v9fs_t_clunk(v9ses, newfid);
- 		if (err < 0)
- 			dprintk(DEBUG_ERROR, "clunk failed: %d\n", err);
-	}
-	if (wfidno >= 0) {
- 		err = v9fs_t_clunk(v9ses, wfidno);
- 		if (err < 0)
- 			dprintk(DEBUG_ERROR, "clunk failed: %d\n", err);
-	}
-	return result;
+	return ERR_PTR(err);
 }
 
 /**
@@ -440,20 +434,97 @@ static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir)
 	return result;
 }
 
+static int
+v9fs_open_created(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
 /**
  * v9fs_vfs_create - VFS hook to create files
  * @inode: directory inode that is being deleted
  * @dentry:  dentry that is being deleted
- * @perm: create permissions
+ * @mode: create permissions
  * @nd: path information
  *
  */
 
 static int
-v9fs_vfs_create(struct inode *inode, struct dentry *dentry, int perm,
+v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
 		struct nameidata *nd)
 {
-	return v9fs_create(inode, dentry, perm, O_RDWR);
+	int err;
+	u32 fid, perm, iounit;
+	int flags;
+	struct v9fs_session_info *v9ses;
+	struct v9fs_fid *dfid, *vfid, *ffid;
+	struct inode *inode;
+	struct v9fs_qid qid;
+	struct file *filp;
+
+	inode = NULL;
+	vfid = NULL;
+	v9ses = v9fs_inode2v9ses(dir);
+	dfid = v9fs_fid_lookup(dentry->d_parent);
+	perm = unixmode2p9mode(v9ses, mode);
+
+	if (nd && nd->flags & LOOKUP_OPEN)
+		flags = nd->intent.open.flags - 1;
+	else
+		flags = O_RDWR;
+
+	err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name,
+		perm, v9fs_uflags2omode(flags), &fid, &qid, &iounit);
+
+	if (err)
+		goto error;
+
+	vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry);
+	if (IS_ERR(vfid)) {
+		err = PTR_ERR(vfid);
+		vfid = NULL;
+		goto error;
+	}
+
+	inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb);
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		inode = NULL;
+		goto error;
+	}
+
+	dentry->d_op = &v9fs_dentry_operations;
+	d_instantiate(dentry, inode);
+
+	if (nd && nd->flags & LOOKUP_OPEN) {
+		ffid = v9fs_fid_create(v9ses, fid);
+		if (!ffid)
+			return -ENOMEM;
+
+		filp = lookup_instantiate_filp(nd, dentry, v9fs_open_created);
+		if (IS_ERR(filp)) {
+			v9fs_fid_destroy(ffid);
+			return PTR_ERR(filp);
+		}
+
+		ffid->rdir_pos = 0;
+		ffid->rdir_fcall = NULL;
+		ffid->fidopen = 1;
+		ffid->iounit = iounit;
+		ffid->filp = filp;
+		filp->private_data = ffid;
+	}
+
+	return 0;
+
+error:
+	if (vfid)
+		v9fs_fid_destroy(vfid);
+
+	if (inode)
+		iput(inode);
+
+	return err;
 }
 
 /**
@@ -464,9 +535,57 @@ v9fs_vfs_create(struct inode *inode, struct dentry *dentry, int perm,
  *
  */
 
-static int v9fs_vfs_mkdir(struct inode *inode, struct dentry *dentry, int mode)
+static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 {
-	return v9fs_create(inode, dentry, mode | S_IFDIR, O_RDONLY);
+	int err;
+	u32 fid, perm;
+	struct v9fs_session_info *v9ses;
+	struct v9fs_fid *dfid, *vfid;
+	struct inode *inode;
+
+	inode = NULL;
+	vfid = NULL;
+	v9ses = v9fs_inode2v9ses(dir);
+	dfid = v9fs_fid_lookup(dentry->d_parent);
+	perm = unixmode2p9mode(v9ses, mode | S_IFDIR);
+
+	err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name,
+		perm, V9FS_OREAD, &fid, NULL, NULL);
+
+	if (err) {
+		dprintk(DEBUG_ERROR, "create error %d\n", err);
+		goto error;
+	}
+
+	err = v9fs_t_clunk(v9ses, fid);
+	if (err) {
+		dprintk(DEBUG_ERROR, "clunk error %d\n", err);
+		goto error;
+	}
+
+	vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry);
+	if (IS_ERR(vfid)) {
+		err = PTR_ERR(vfid);
+		vfid = NULL;
+		goto error;
+	}
+
+	inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb);
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		inode = NULL;
+		goto error;
+	}
+
+	dentry->d_op = &v9fs_dentry_operations;
+	d_instantiate(dentry, inode);
+	return 0;
+
+error:
+	if (vfid)
+		v9fs_fid_destroy(vfid);
+
+	return err;
 }
 
 /**
@@ -491,10 +610,11 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 	int result = 0;
 
 	dprintk(DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n",
-		dir, dentry->d_iname, dentry, nameidata);
+		dir, dentry->d_name.name, dentry, nameidata);
 
 	sb = dir->i_sb;
 	v9ses = v9fs_inode2v9ses(dir);
+	dentry->d_op = &v9fs_dentry_operations;
 	dirfid = v9fs_fid_lookup(dentry->d_parent);
 
 	if (!dirfid) {
@@ -516,9 +636,8 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 		return ERR_PTR(-ENOSPC);
 	}
 
-	result =
-	    v9fs_t_walk(v9ses, dirfidnum, newfid, (char *)dentry->d_name.name,
-			NULL);
+	result = v9fs_t_walk(v9ses, dirfidnum, newfid,
+		(char *)dentry->d_name.name, NULL);
 	if (result < 0) {
 		v9fs_put_idpool(newfid, &v9ses->fidpool);
 		if (result == -ENOENT) {
@@ -551,16 +670,18 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 
 	inode->i_ino = v9fs_qid2ino(&fcall->params.rstat.stat.qid);
 
-	fid = v9fs_fid_create(dentry, v9ses, newfid, 0);
+	fid = v9fs_fid_create(v9ses, newfid);
 	if (fid == NULL) {
 		dprintk(DEBUG_ERROR, "couldn't insert\n");
 		result = -ENOMEM;
 		goto FreeFcall;
 	}
 
-	fid->qid = fcall->params.rstat.stat.qid;
+	result = v9fs_fid_insert(fid, dentry);
+	if (result < 0)
+		goto FreeFcall;
 
-	dentry->d_op = &v9fs_dentry_operations;
+	fid->qid = fcall->params.rstat.stat.qid;
 	v9fs_stat2inode(&fcall->params.rstat.stat, inode, inode->i_sb);
 
 	d_add(dentry, inode);
@@ -886,8 +1007,8 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
 	}
 
 	/* copy extension buffer into buffer */
-	if (fcall->params.rstat.stat.extension.len+1 < buflen)
-		buflen = fcall->params.rstat.stat.extension.len + 1;
+	if (fcall->params.rstat.stat.extension.len < buflen)
+		buflen = fcall->params.rstat.stat.extension.len;
 
 	memcpy(buffer, fcall->params.rstat.stat.extension.str, buflen - 1);
 	buffer[buflen-1] = 0;
@@ -951,7 +1072,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 	if (!link)
 		link = ERR_PTR(-ENOMEM);
 	else {
-		len = v9fs_readlink(dentry, link, PATH_MAX);
+		len = v9fs_readlink(dentry, link, strlen(link));
 
 		if (len < 0) {
 			__putname(link);
@@ -983,53 +1104,75 @@ static void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void
 static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
 	int mode, const char *extension)
 {
-	int err, retval;
+	int err;
+	u32 fid, perm;
 	struct v9fs_session_info *v9ses;
+	struct v9fs_fid *dfid, *vfid;
+	struct inode *inode;
 	struct v9fs_fcall *fcall;
-	struct v9fs_fid *fid;
 	struct v9fs_wstat wstat;
 
-	v9ses = v9fs_inode2v9ses(dir);
-	retval = -EPERM;
 	fcall = NULL;
+	inode = NULL;
+	vfid = NULL;
+	v9ses = v9fs_inode2v9ses(dir);
+	dfid = v9fs_fid_lookup(dentry->d_parent);
+	perm = unixmode2p9mode(v9ses, mode);
 
 	if (!v9ses->extended) {
 		dprintk(DEBUG_ERROR, "not extended\n");
-		goto free_mem;
+		return -EPERM;
 	}
 
-	/* issue a create */
-	retval = v9fs_create(dir, dentry, mode, 0);
-	if (retval != 0)
-		goto free_mem;
+	err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name,
+		perm, V9FS_OREAD, &fid, NULL, NULL);
 
-	fid = v9fs_fid_get_created(dentry);
-	if (!fid) {
-		dprintk(DEBUG_ERROR, "couldn't resolve fid from dentry\n");
-		goto free_mem;
+	if (err)
+		goto error;
+
+	err = v9fs_t_clunk(v9ses, fid);
+	if (err)
+		goto error;
+
+	vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry);
+	if (IS_ERR(vfid)) {
+		err = PTR_ERR(vfid);
+		vfid = NULL;
+		goto error;
+	}
+
+	inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb);
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		inode = NULL;
+		goto error;
 	}
 
 	/* issue a Twstat */
 	v9fs_blank_wstat(&wstat);
 	wstat.muid = v9ses->name;
 	wstat.extension = (char *) extension;
-	retval = v9fs_t_wstat(v9ses, fid->fid, &wstat, &fcall);
-	if (retval < 0) {
-		PRINT_FCALL_ERROR("wstat error", fcall);
-		goto free_mem;
-	}
-
-	err = v9fs_t_clunk(v9ses, fid->fid);
+	err = v9fs_t_wstat(v9ses, vfid->fid, &wstat, &fcall);
 	if (err < 0) {
-		dprintk(DEBUG_ERROR, "clunk failed: %d\n", err);
-		goto free_mem;
+		PRINT_FCALL_ERROR("wstat error", fcall);
+		goto error;
 	}
 
-	d_drop(dentry);		/* FID - will this also clunk? */
+	kfree(fcall);
+	dentry->d_op = &v9fs_dentry_operations;
+	d_instantiate(dentry, inode);
+	return 0;
 
-free_mem:
+error:
 	kfree(fcall);
-	return retval;
+	if (vfid)
+		v9fs_fid_destroy(vfid);
+
+	if (inode)
+		iput(inode);
+
+	return err;
+
 }
 
 /**
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 2c4fa75be025..d05318fa684e 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -146,7 +146,6 @@ static struct super_block *v9fs_get_sb(struct file_system_type
 	inode->i_gid = gid;
 
 	root = d_alloc_root(inode);
-
 	if (!root) {
 		retval = -ENOMEM;
 		goto put_back_sb;
@@ -158,15 +157,20 @@ static struct super_block *v9fs_get_sb(struct file_system_type
 	if (stat_result < 0) {
 		dprintk(DEBUG_ERROR, "stat error\n");
 		v9fs_t_clunk(v9ses, newfid);
-		v9fs_put_idpool(newfid, &v9ses->fidpool);
 	} else {
 		/* Setup the Root Inode */
-		root_fid = v9fs_fid_create(root, v9ses, newfid, 0);
+		root_fid = v9fs_fid_create(v9ses, newfid);
 		if (root_fid == NULL) {
 			retval = -ENOMEM;
 			goto put_back_sb;
 		}
 
+		retval = v9fs_fid_insert(root_fid, root);
+		if (retval < 0) {
+			kfree(fcall);
+			goto put_back_sb;
+		}
+
 		root_fid->qid = fcall->params.rstat.stat.qid;
 		root->d_inode->i_ino =
 		    v9fs_qid2ino(&fcall->params.rstat.stat.qid);
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 2d365cb8eec6..dd6048ce0532 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -561,7 +561,7 @@ befs_utf2nls(struct super_block *sb, const char *in,
  * @sb: Superblock
  * @src: Input string buffer in NLS format
  * @srclen: Length of input string in bytes
- * @dest: The output string in UTF8 format
+ * @dest: The output string in UTF-8 format
  * @destlen: Length of the output buffer
  * 
  * Converts input string @src, which is in the format of the loaded NLS map,
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 1b117a441298..c2eac2a50bd2 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -938,6 +938,11 @@ static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 		kfree(elf_interpreter);
 	} else {
 		elf_entry = loc->elf_ex.e_entry;
+		if (BAD_ADDR(elf_entry)) {
+			send_sig(SIGSEGV, current, 0);
+			retval = -ENOEXEC; /* Nobody gets to see this, but.. */
+			goto out_free_dentry;
+		}
 	}
 
 	kfree(elf_phdata);
diff --git a/fs/buffer.c b/fs/buffer.c
index 62cfd17dc5fe..1d3683d496f8 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3051,66 +3051,6 @@ asmlinkage long sys_bdflush(int func, long data)
 }
 
 /*
- * Migration function for pages with buffers. This function can only be used
- * if the underlying filesystem guarantees that no other references to "page"
- * exist.
- */
-#ifdef CONFIG_MIGRATION
-int buffer_migrate_page(struct page *newpage, struct page *page)
-{
-	struct address_space *mapping = page->mapping;
-	struct buffer_head *bh, *head;
-
-	if (!mapping)
-		return -EAGAIN;
-
-	if (!page_has_buffers(page))
-		return migrate_page(newpage, page);
-
-	head = page_buffers(page);
-
-	if (migrate_page_remove_references(newpage, page, 3))
-		return -EAGAIN;
-
-	bh = head;
-	do {
-		get_bh(bh);
-		lock_buffer(bh);
-		bh = bh->b_this_page;
-
-	} while (bh != head);
-
-	ClearPagePrivate(page);
-	set_page_private(newpage, page_private(page));
-	set_page_private(page, 0);
-	put_page(page);
-	get_page(newpage);
-
-	bh = head;
-	do {
-		set_bh_page(bh, newpage, bh_offset(bh));
-		bh = bh->b_this_page;
-
-	} while (bh != head);
-
-	SetPagePrivate(newpage);
-
-	migrate_page_copy(newpage, page);
-
-	bh = head;
-	do {
-		unlock_buffer(bh);
- 		put_bh(bh);
-		bh = bh->b_this_page;
-
-	} while (bh != head);
-
-	return 0;
-}
-EXPORT_SYMBOL(buffer_migrate_page);
-#endif
-
-/*
  * Buffer-head allocation
  */
 static kmem_cache_t *bh_cachep;
diff --git a/fs/char_dev.c b/fs/char_dev.c
index 21195c481637..5c36345c9bf7 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -19,6 +19,7 @@
 #include <linux/kobject.h>
 #include <linux/kobj_map.h>
 #include <linux/cdev.h>
+#include <linux/mutex.h>
 
 #ifdef CONFIG_KMOD
 #include <linux/kmod.h>
@@ -28,7 +29,7 @@ static struct kobj_map *cdev_map;
 
 #define MAX_PROBE_HASH 255	/* random */
 
-static DECLARE_MUTEX(chrdevs_lock);
+static DEFINE_MUTEX(chrdevs_lock);
 
 static struct char_device_struct {
 	struct char_device_struct *next;
@@ -88,13 +89,13 @@ out:
 
 void *acquire_chrdev_list(void)
 {
-	down(&chrdevs_lock);
+	mutex_lock(&chrdevs_lock);
 	return get_next_chrdev(NULL);
 }
 
 void release_chrdev_list(void *dev)
 {
-	up(&chrdevs_lock);
+	mutex_unlock(&chrdevs_lock);
 	kfree(dev);
 }
 
@@ -151,7 +152,7 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor,
 
 	memset(cd, 0, sizeof(struct char_device_struct));
 
-	down(&chrdevs_lock);
+	mutex_lock(&chrdevs_lock);
 
 	/* temporary */
 	if (major == 0) {
@@ -186,10 +187,10 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor,
 	}
 	cd->next = *cp;
 	*cp = cd;
-	up(&chrdevs_lock);
+	mutex_unlock(&chrdevs_lock);
 	return cd;
 out:
-	up(&chrdevs_lock);
+	mutex_unlock(&chrdevs_lock);
 	kfree(cd);
 	return ERR_PTR(ret);
 }
@@ -200,7 +201,7 @@ __unregister_chrdev_region(unsigned major, unsigned baseminor, int minorct)
 	struct char_device_struct *cd = NULL, **cp;
 	int i = major_to_index(major);
 
-	down(&chrdevs_lock);
+	mutex_lock(&chrdevs_lock);
 	for (cp = &chrdevs[i]; *cp; cp = &(*cp)->next)
 		if ((*cp)->major == major &&
 		    (*cp)->baseminor == baseminor &&
@@ -210,7 +211,7 @@ __unregister_chrdev_region(unsigned major, unsigned baseminor, int minorct)
 		cd = *cp;
 		*cp = cd->next;
 	}
-	up(&chrdevs_lock);
+	mutex_unlock(&chrdevs_lock);
 	return cd;
 }
 
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index d335015473a5..cb68efba35db 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -160,7 +160,7 @@ improperly zeroed buffer in CIFS Unix extensions set times call.
 Version 1.25
 ------------
 Fix internationalization problem in cifs readdir with filenames that map to 
-longer UTF8 strings than the string on the wire was in Unicode.  Add workaround
+longer UTF-8 strings than the string on the wire was in Unicode.  Add workaround
 for readdir to netapp servers. Fix search rewind (seek into readdir to return 
 non-consecutive entries).  Do not do readdir when server negotiates 
 buffer size to small to fit filename. Add support for reading POSIX ACLs from
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 3c03aadaff0c..7b25463d3c14 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -52,7 +52,7 @@ extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
 			int * /* type of buf returned */ , const int long_op);
 extern int checkSMBhdr(struct smb_hdr *smb, __u16 mid);
 extern int checkSMB(struct smb_hdr *smb, __u16 mid, int length);
-extern int is_valid_oplock_break(struct smb_hdr *smb);
+extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
 extern int is_size_safe_to_change(struct cifsInodeInfo *);
 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index ef5ae6f93c75..2a0c1f4ca0ae 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -630,7 +630,7 @@ multi_t2_fnd:
 					smallbuf = NULL;
 			}
 			wake_up_process(task_to_wake);
-		} else if ((is_valid_oplock_break(smb_buffer) == FALSE)
+		} else if ((is_valid_oplock_break(smb_buffer, server) == FALSE)
 		    && (isMultiRsp == FALSE)) {                          
 			cERROR(1, ("No task to wake, unknown frame rcvd!"));
 			cifs_dump_mem("Received Data is: ",(char *)smb_buffer,
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 812c6bb0fe38..432ba15e2c2d 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -475,7 +475,7 @@ checkSMB(struct smb_hdr *smb, __u16 mid, int length)
 	return 0;
 }
 int
-is_valid_oplock_break(struct smb_hdr *buf)
+is_valid_oplock_break(struct smb_hdr *buf, struct TCP_Server_Info *srv)
 {    
 	struct smb_com_lock_req * pSMB = (struct smb_com_lock_req *)buf;
 	struct list_head *tmp;
@@ -535,7 +535,7 @@ is_valid_oplock_break(struct smb_hdr *buf)
 	read_lock(&GlobalSMBSeslock);
 	list_for_each(tmp, &GlobalTreeConnectionList) {
 		tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
-		if (tcon->tid == buf->Tid) {
+		if ((tcon->tid == buf->Tid) && (srv == tcon->ses->server)) {
 			cifs_stats_inc(&tcon->num_oplock_brks);
 			list_for_each(tmp1,&tcon->openFileList){
 				netfile = list_entry(tmp1,struct cifsFileInfo,
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 057e60217fc5..c666769a875d 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -446,7 +446,7 @@ static int dev_ifconf(unsigned int fd, unsigned int cmd, unsigned long arg)
 	ifr = ifc.ifc_req;
 	ifr32 = compat_ptr(ifc32.ifcbuf);
 	for (i = 0, j = 0;
-             i + sizeof (struct ifreq32) < ifc32.ifc_len && j < ifc.ifc_len;
+             i + sizeof (struct ifreq32) <= ifc32.ifc_len && j < ifc.ifc_len;
 	     i += sizeof (struct ifreq32), j += sizeof (struct ifreq)) {
 		if (copy_in_user(ifr32, ifr, sizeof (struct ifreq32)))
 			return -EFAULT;
@@ -2531,18 +2531,9 @@ static int rtc_ioctl(unsigned fd, unsigned cmd, unsigned long arg)
 		val32 = kval;
 		return put_user(val32, (unsigned int __user *)arg);
 	case RTC_IRQP_SET32:
+		return sys_ioctl(fd, RTC_IRQP_SET, arg); 
 	case RTC_EPOCH_SET32:
-		ret = get_user(val32, (unsigned int __user *)arg);
-		if (ret)
-			return ret;
-		kval = val32;
-
-		set_fs(KERNEL_DS);
-		ret = sys_ioctl(fd, (cmd == RTC_IRQP_SET32) ?
-				RTC_IRQP_SET : RTC_EPOCH_SET,
-				(unsigned long)&kval);
-		set_fs(oldfs);
-		return ret;
+		return sys_ioctl(fd, RTC_EPOCH_SET, arg);
 	default:
 		/* unreached */
 		return -ENOIOCTLCMD;
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 7fe85415ae7c..8ad52f5bf255 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -36,7 +36,7 @@ static DECLARE_MUTEX(read_mutex);
 
 /* These two macros may change in future, to provide better st_ino
    semantics. */
-#define CRAMINO(x)	((x)->offset?(x)->offset<<2:1)
+#define CRAMINO(x)	(((x)->offset && (x)->size)?(x)->offset<<2:1)
 #define OFFSET(x)	((x)->i_ino)
 
 
@@ -66,8 +66,36 @@ static int cramfs_iget5_test(struct inode *inode, void *opaque)
 
 static int cramfs_iget5_set(struct inode *inode, void *opaque)
 {
+	static struct timespec zerotime;
 	struct cramfs_inode *cramfs_inode = opaque;
+	inode->i_mode = cramfs_inode->mode;
+	inode->i_uid = cramfs_inode->uid;
+	inode->i_size = cramfs_inode->size;
+	inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1;
+	inode->i_blksize = PAGE_CACHE_SIZE;
+	inode->i_gid = cramfs_inode->gid;
+	/* Struct copy intentional */
+	inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime;
 	inode->i_ino = CRAMINO(cramfs_inode);
+	/* inode->i_nlink is left 1 - arguably wrong for directories,
+	   but it's the best we can do without reading the directory
+           contents.  1 yields the right result in GNU find, even
+	   without -noleaf option. */
+	if (S_ISREG(inode->i_mode)) {
+		inode->i_fop = &generic_ro_fops;
+		inode->i_data.a_ops = &cramfs_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &cramfs_dir_inode_operations;
+		inode->i_fop = &cramfs_directory_operations;
+	} else if (S_ISLNK(inode->i_mode)) {
+		inode->i_op = &page_symlink_inode_operations;
+		inode->i_data.a_ops = &cramfs_aops;
+	} else {
+		inode->i_size = 0;
+		inode->i_blocks = 0;
+		init_special_inode(inode, inode->i_mode,
+			old_decode_dev(cramfs_inode->size));
+	}
 	return 0;
 }
 
@@ -77,37 +105,7 @@ static struct inode *get_cramfs_inode(struct super_block *sb,
 	struct inode *inode = iget5_locked(sb, CRAMINO(cramfs_inode),
 					    cramfs_iget5_test, cramfs_iget5_set,
 					    cramfs_inode);
-	static struct timespec zerotime;
-
 	if (inode && (inode->i_state & I_NEW)) {
-		inode->i_mode = cramfs_inode->mode;
-		inode->i_uid = cramfs_inode->uid;
-		inode->i_size = cramfs_inode->size;
-		inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1;
-		inode->i_blksize = PAGE_CACHE_SIZE;
-		inode->i_gid = cramfs_inode->gid;
-		/* Struct copy intentional */
-		inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime;
-		inode->i_ino = CRAMINO(cramfs_inode);
-		/* inode->i_nlink is left 1 - arguably wrong for directories,
-		   but it's the best we can do without reading the directory
-	           contents.  1 yields the right result in GNU find, even
-		   without -noleaf option. */
-		if (S_ISREG(inode->i_mode)) {
-			inode->i_fop = &generic_ro_fops;
-			inode->i_data.a_ops = &cramfs_aops;
-		} else if (S_ISDIR(inode->i_mode)) {
-			inode->i_op = &cramfs_dir_inode_operations;
-			inode->i_fop = &cramfs_directory_operations;
-		} else if (S_ISLNK(inode->i_mode)) {
-			inode->i_op = &page_symlink_inode_operations;
-			inode->i_data.a_ops = &cramfs_aops;
-		} else {
-			inode->i_size = 0;
-			inode->i_blocks = 0;
-			init_special_inode(inode, inode->i_mode,
-				old_decode_dev(cramfs_inode->size));
-		}
 		unlock_new_inode(inode);
 	}
 	return inode;
diff --git a/fs/dcache.c b/fs/dcache.c
index a173bba32666..11dc83092d4a 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1736,7 +1736,7 @@ void __init vfs_caches_init(unsigned long mempages)
 			SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL, NULL);
 
 	filp_cachep = kmem_cache_create("filp", sizeof(struct file), 0,
-			SLAB_HWCACHE_ALIGN|SLAB_PANIC, filp_ctor, filp_dtor);
+			SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL, NULL);
 
 	dcache_init(mempages);
 	inode_init(mempages);
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index d575452cd9f7..40c4fc973fad 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -251,3 +251,49 @@ struct dentry *debugfs_create_bool(const char *name, mode_t mode,
 }
 EXPORT_SYMBOL_GPL(debugfs_create_bool);
 
+static ssize_t read_file_blob(struct file *file, char __user *user_buf,
+			      size_t count, loff_t *ppos)
+{
+	struct debugfs_blob_wrapper *blob = file->private_data;
+	return simple_read_from_buffer(user_buf, count, ppos, blob->data,
+			blob->size);
+}
+
+static struct file_operations fops_blob = {
+	.read =		read_file_blob,
+	.open =		default_open,
+};
+
+/**
+ * debugfs_create_blob - create a file in the debugfs filesystem that is
+ * used to read and write a binary blob.
+ *
+ * @name: a pointer to a string containing the name of the file to create.
+ * @mode: the permission that the file should have
+ * @parent: a pointer to the parent dentry for this file.  This should be a
+ *          directory dentry if set.  If this paramater is NULL, then the
+ *          file will be created in the root of the debugfs filesystem.
+ * @blob: a pointer to a struct debugfs_blob_wrapper which contains a pointer
+ *        to the blob data and the size of the data.
+ *
+ * This function creates a file in debugfs with the given name that exports
+ * @blob->data as a binary blob. If the @mode variable is so set it can be
+ * read from. Writing is not supported.
+ *
+ * This function will return a pointer to a dentry if it succeeds.  This
+ * pointer must be passed to the debugfs_remove() function when the file is
+ * to be removed (no automatic cleanup happens if your module is unloaded,
+ * you are responsible here.)  If an error occurs, NULL will be returned.
+ *
+ * If debugfs is not enabled in the kernel, the value -ENODEV will be
+ * returned.  It is not wise to check for this value, but rather, check for
+ * NULL or !NULL instead as to eliminate the need for #ifdef in the calling
+ * code.
+ */
+struct dentry *debugfs_create_blob(const char *name, mode_t mode,
+				   struct dentry *parent,
+				   struct debugfs_blob_wrapper *blob)
+{
+	return debugfs_create_file(name, mode, parent, blob, &fops_blob);
+}
+EXPORT_SYMBOL_GPL(debugfs_create_blob);
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 848044af7e16..27f3e787faca 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1155,15 +1155,16 @@ direct_io_worker(int rw, struct kiocb *iocb, struct inode *inode,
  * For writes, i_mutex is not held on entry; it is never taken.
  *
  * DIO_LOCKING (simple locking for regular files)
- * For writes we are called under i_mutex and return with i_mutex held, even though
- * it is internally dropped.
+ * For writes we are called under i_mutex and return with i_mutex held, even
+ * though it is internally dropped.
  * For reads, i_mutex is not held on entry, but it is taken and dropped before
  * returning.
  *
  * DIO_OWN_LOCKING (filesystem provides synchronisation and handling of
  *	uninitialised data, allowing parallel direct readers and writers)
  * For writes we are called without i_mutex, return without it, never touch it.
- * For reads, i_mutex is held on entry and will be released before returning.
+ * For reads we are called under i_mutex and return with i_mutex held, even
+ * though it may be internally dropped.
  *
  * Additional i_alloc_sem locking requirements described inline below.
  */
@@ -1182,7 +1183,8 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 	ssize_t retval = -EINVAL;
 	loff_t end = offset;
 	struct dio *dio;
-	int reader_with_isem = (rw == READ && dio_lock_type == DIO_OWN_LOCKING);
+	int release_i_mutex = 0;
+	int acquire_i_mutex = 0;
 
 	if (rw & WRITE)
 		current->flags |= PF_SYNCWRITE;
@@ -1225,7 +1227,6 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 	 *	writers need to grab i_alloc_sem only (i_mutex is already held)
 	 * For regular files using DIO_OWN_LOCKING,
 	 *	neither readers nor writers take any locks here
-	 *	(i_mutex is already held and release for writers here)
 	 */
 	dio->lock_type = dio_lock_type;
 	if (dio_lock_type != DIO_NO_LOCKING) {
@@ -1236,7 +1237,7 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 			mapping = iocb->ki_filp->f_mapping;
 			if (dio_lock_type != DIO_OWN_LOCKING) {
 				mutex_lock(&inode->i_mutex);
-				reader_with_isem = 1;
+				release_i_mutex = 1;
 			}
 
 			retval = filemap_write_and_wait_range(mapping, offset,
@@ -1248,7 +1249,7 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 
 			if (dio_lock_type == DIO_OWN_LOCKING) {
 				mutex_unlock(&inode->i_mutex);
-				reader_with_isem = 0;
+				acquire_i_mutex = 1;
 			}
 		}
 
@@ -1269,11 +1270,13 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 				nr_segs, blkbits, get_blocks, end_io, dio);
 
 	if (rw == READ && dio_lock_type == DIO_LOCKING)
-		reader_with_isem = 0;
+		release_i_mutex = 0;
 
 out:
-	if (reader_with_isem)
+	if (release_i_mutex)
 		mutex_unlock(&inode->i_mutex);
+	else if (acquire_i_mutex)
+		mutex_lock(&inode->i_mutex);
 	if (rw & WRITE)
 		current->flags &= ~PF_SYNCWRITE;
 	return retval;
diff --git a/fs/exec.c b/fs/exec.c
index 0e1c95074d42..0b515ac53134 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -885,6 +885,12 @@ int flush_old_exec(struct linux_binprm * bprm)
 	current->flags &= ~PF_RANDOMIZE;
 	flush_thread();
 
+	/* Set the new mm task size. We have to do that late because it may
+	 * depend on TIF_32BIT which is only updated in flush_thread() on
+	 * some architectures like powerpc
+	 */
+	current->mm->task_size = TASK_SIZE;
+
 	if (bprm->e_uid != current->euid || bprm->e_gid != current->egid || 
 	    file_permission(bprm->file, MAY_READ) ||
 	    (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)) {
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 7442bdd1267a..b3dbd716cd3a 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -256,11 +256,10 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir)
 	unsigned long npages = dir_pages(inode);
 	unsigned chunk_mask = ~(ext2_chunk_size(inode)-1);
 	unsigned char *types = NULL;
-	int need_revalidate = (filp->f_version != inode->i_version);
-	int ret;
+	int need_revalidate = filp->f_version != inode->i_version;
 
 	if (pos > inode->i_size - EXT2_DIR_REC_LEN(1))
-		goto success;
+		return 0;
 
 	if (EXT2_HAS_INCOMPAT_FEATURE(sb, EXT2_FEATURE_INCOMPAT_FILETYPE))
 		types = ext2_filetype_table;
@@ -275,12 +274,15 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir)
 				   "bad page in #%lu",
 				   inode->i_ino);
 			filp->f_pos += PAGE_CACHE_SIZE - offset;
-			ret = -EIO;
-			goto done;
+			return -EIO;
 		}
 		kaddr = page_address(page);
-		if (need_revalidate) {
-			offset = ext2_validate_entry(kaddr, offset, chunk_mask);
+		if (unlikely(need_revalidate)) {
+			if (offset) {
+				offset = ext2_validate_entry(kaddr, offset, chunk_mask);
+				filp->f_pos = (n<<PAGE_CACHE_SHIFT) + offset;
+			}
+			filp->f_version = inode->i_version;
 			need_revalidate = 0;
 		}
 		de = (ext2_dirent *)(kaddr+offset);
@@ -289,9 +291,8 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir)
 			if (de->rec_len == 0) {
 				ext2_error(sb, __FUNCTION__,
 					"zero-length directory entry");
-				ret = -EIO;
 				ext2_put_page(page);
-				goto done;
+				return -EIO;
 			}
 			if (de->inode) {
 				int over;
@@ -306,19 +307,14 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir)
 						le32_to_cpu(de->inode), d_type);
 				if (over) {
 					ext2_put_page(page);
-					goto success;
+					return 0;
 				}
 			}
 			filp->f_pos += le16_to_cpu(de->rec_len);
 		}
 		ext2_put_page(page);
 	}
-
-success:
-	ret = 0;
-done:
-	filp->f_version = inode->i_version;
-	return ret;
+	return 0;
 }
 
 /*
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 3fc4238e9703..0384e539b88f 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -1624,15 +1624,14 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
 	 * For "nobh" option,  we can only work if we don't need to
 	 * read-in the page - otherwise we create buffers to do the IO.
 	 */
-	if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH)) {
-		if (PageUptodate(page)) {
-			kaddr = kmap_atomic(page, KM_USER0);
-			memset(kaddr + offset, 0, length);
-			flush_dcache_page(page);
-			kunmap_atomic(kaddr, KM_USER0);
-			set_page_dirty(page);
-			goto unlock;
-		}
+	if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
+	     ext3_should_writeback_data(inode) && PageUptodate(page)) {
+		kaddr = kmap_atomic(page, KM_USER0);
+		memset(kaddr + offset, 0, length);
+		flush_dcache_page(page);
+		kunmap_atomic(kaddr, KM_USER0);
+		set_page_dirty(page);
+		goto unlock;
 	}
 
 	if (!page_has_buffers(page))
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 8bd8ac077704..b8f5cd1e540d 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -2141,7 +2141,8 @@ retry:
 		 * We have a transaction open.  All is sweetness.  It also sets
 		 * i_size in generic_commit_write().
 		 */
-		err = page_symlink(inode, symname, l);
+		err = __page_symlink(inode, symname, l,
+				mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS);
 		if (err) {
 			ext3_dec_count(handle, inode);
 			ext3_mark_inode_dirty(handle, inode);
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index db0de5c621c7..4095bc149eb1 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -114,7 +114,7 @@ static inline int fat_get_entry(struct inode *dir, loff_t *pos,
 }
 
 /*
- * Convert Unicode 16 to UTF8, translated Unicode, or ASCII.
+ * Convert Unicode 16 to UTF-8, translated Unicode, or ASCII.
  * If uni_xlate is enabled and we can't get a 1:1 conversion, use a
  * colon as an escape character since it is normally invalid on the vfat
  * filesystem. The following four characters are the hexadecimal digits
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index e7f4aa7fc686..e78d7b4842cc 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1101,7 +1101,7 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug,
 			return -EINVAL;
 		}
 	}
-	/* UTF8 doesn't provide FAT semantics */
+	/* UTF-8 doesn't provide FAT semantics */
 	if (!strcmp(opts->iocharset, "utf8")) {
 		printk(KERN_ERR "FAT: utf8 is not a recommended IO charset"
 		       " for FAT filesystems, filesystem will be case sensitive!\n");
diff --git a/fs/fifo.c b/fs/fifo.c
index 923371b753ab..d13fcd3ec803 100644
--- a/fs/fifo.c
+++ b/fs/fifo.c
@@ -34,10 +34,7 @@ static int fifo_open(struct inode *inode, struct file *filp)
 {
 	int ret;
 
-	ret = -ERESTARTSYS;
-	if (mutex_lock_interruptible(PIPE_MUTEX(*inode)))
-		goto err_nolock_nocleanup;
-
+	mutex_lock(PIPE_MUTEX(*inode));
 	if (!inode->i_pipe) {
 		ret = -ENOMEM;
 		if(!pipe_new(inode))
@@ -140,8 +137,6 @@ err:
 
 err_nocleanup:
 	mutex_unlock(PIPE_MUTEX(*inode));
-
-err_nolock_nocleanup:
 	return ret;
 }
 
diff --git a/fs/file_table.c b/fs/file_table.c
index 768b58167543..44fabeaa9415 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -5,6 +5,7 @@
  *  Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
  */
 
+#include <linux/config.h>
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/file.h>
@@ -19,52 +20,67 @@
 #include <linux/capability.h>
 #include <linux/cdev.h>
 #include <linux/fsnotify.h>
+#include <linux/sysctl.h>
+#include <linux/percpu_counter.h>
+
+#include <asm/atomic.h>
 
 /* sysctl tunables... */
 struct files_stat_struct files_stat = {
 	.max_files = NR_FILE
 };
 
-EXPORT_SYMBOL(files_stat); /* Needed by unix.o */
-
 /* public. Not pretty! */
- __cacheline_aligned_in_smp DEFINE_SPINLOCK(files_lock);
+__cacheline_aligned_in_smp DEFINE_SPINLOCK(files_lock);
 
-static DEFINE_SPINLOCK(filp_count_lock);
+static struct percpu_counter nr_files __cacheline_aligned_in_smp;
 
-/* slab constructors and destructors are called from arbitrary
- * context and must be fully threaded - use a local spinlock
- * to protect files_stat.nr_files
- */
-void filp_ctor(void *objp, struct kmem_cache *cachep, unsigned long cflags)
+static inline void file_free_rcu(struct rcu_head *head)
 {
-	if ((cflags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
-	    SLAB_CTOR_CONSTRUCTOR) {
-		unsigned long flags;
-		spin_lock_irqsave(&filp_count_lock, flags);
-		files_stat.nr_files++;
-		spin_unlock_irqrestore(&filp_count_lock, flags);
-	}
+	struct file *f =  container_of(head, struct file, f_u.fu_rcuhead);
+	kmem_cache_free(filp_cachep, f);
 }
 
-void filp_dtor(void *objp, struct kmem_cache *cachep, unsigned long dflags)
+static inline void file_free(struct file *f)
 {
-	unsigned long flags;
-	spin_lock_irqsave(&filp_count_lock, flags);
-	files_stat.nr_files--;
-	spin_unlock_irqrestore(&filp_count_lock, flags);
+	percpu_counter_dec(&nr_files);
+	call_rcu(&f->f_u.fu_rcuhead, file_free_rcu);
 }
 
-static inline void file_free_rcu(struct rcu_head *head)
+/*
+ * Return the total number of open files in the system
+ */
+static int get_nr_files(void)
 {
-	struct file *f =  container_of(head, struct file, f_u.fu_rcuhead);
-	kmem_cache_free(filp_cachep, f);
+	return percpu_counter_read_positive(&nr_files);
 }
 
-static inline void file_free(struct file *f)
+/*
+ * Return the maximum number of open files in the system
+ */
+int get_max_files(void)
 {
-	call_rcu(&f->f_u.fu_rcuhead, file_free_rcu);
+	return files_stat.max_files;
 }
+EXPORT_SYMBOL_GPL(get_max_files);
+
+/*
+ * Handle nr_files sysctl
+ */
+#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
+int proc_nr_files(ctl_table *table, int write, struct file *filp,
+                     void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	files_stat.nr_files = get_nr_files();
+	return proc_dointvec(table, write, filp, buffer, lenp, ppos);
+}
+#else
+int proc_nr_files(ctl_table *table, int write, struct file *filp,
+                     void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+#endif
 
 /* Find an unused file structure and return a pointer to it.
  * Returns NULL, if there are no more free file structures or
@@ -78,14 +94,20 @@ struct file *get_empty_filp(void)
 	/*
 	 * Privileged users can go above max_files
 	 */
-	if (files_stat.nr_files >= files_stat.max_files &&
-				!capable(CAP_SYS_ADMIN))
-		goto over;
+	if (get_nr_files() >= files_stat.max_files && !capable(CAP_SYS_ADMIN)) {
+		/*
+		 * percpu_counters are inaccurate.  Do an expensive check before
+		 * we go and fail.
+		 */
+		if (percpu_counter_sum(&nr_files) >= files_stat.max_files)
+			goto over;
+	}
 
 	f = kmem_cache_alloc(filp_cachep, GFP_KERNEL);
 	if (f == NULL)
 		goto fail;
 
+	percpu_counter_inc(&nr_files);
 	memset(f, 0, sizeof(*f));
 	if (security_file_alloc(f))
 		goto fail_sec;
@@ -101,10 +123,10 @@ struct file *get_empty_filp(void)
 
 over:
 	/* Ran out of filps - report that */
-	if (files_stat.nr_files > old_max) {
+	if (get_nr_files() > old_max) {
 		printk(KERN_INFO "VFS: file-max limit %d reached\n",
-					files_stat.max_files);
-		old_max = files_stat.nr_files;
+					get_max_files());
+		old_max = get_nr_files();
 	}
 	goto fail;
 
@@ -276,4 +298,5 @@ void __init files_init(unsigned long mempages)
 	if (files_stat.max_files < NR_FILE)
 		files_stat.max_files = NR_FILE;
 	files_defer_init();
+	percpu_counter_init(&nr_files);
 } 
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 21fd59c7bc24..c72a8a97935c 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -111,6 +111,8 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd)
 
 		/* Doesn't hurt to "reset" the validity timeout */
 		fuse_invalidate_entry_cache(entry);
+
+		/* For negative dentries, always do a fresh lookup */
 		if (!inode)
 			return 0;
 
@@ -122,6 +124,9 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd)
 		fuse_lookup_init(req, entry->d_parent->d_inode, entry, &outarg);
 		request_send(fc, req);
 		err = req->out.h.error;
+		/* Zero nodeid is same as -ENOENT */
+		if (!err && !outarg.nodeid)
+			err = -ENOENT;
 		if (!err) {
 			struct fuse_inode *fi = get_fuse_inode(inode);
 			if (outarg.nodeid != get_node_id(inode)) {
@@ -190,8 +195,9 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
 	fuse_lookup_init(req, dir, entry, &outarg);
 	request_send(fc, req);
 	err = req->out.h.error;
-	if (!err && ((outarg.nodeid && invalid_nodeid(outarg.nodeid)) ||
-		     !valid_mode(outarg.attr.mode)))
+	/* Zero nodeid is same as -ENOENT, but with valid timeout */
+	if (!err && outarg.nodeid &&
+	    (invalid_nodeid(outarg.nodeid) || !valid_mode(outarg.attr.mode)))
 		err = -EIO;
 	if (!err && outarg.nodeid) {
 		inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation,
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index b35195289945..25fa8bba8cb5 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -56,48 +56,10 @@ static void huge_pagevec_release(struct pagevec *pvec)
 	pagevec_reinit(pvec);
 }
 
-/*
- * huge_pages_needed tries to determine the number of new huge pages that
- * will be required to fully populate this VMA.  This will be equal to
- * the size of the VMA in huge pages minus the number of huge pages
- * (covered by this VMA) that are found in the page cache.
- *
- * Result is in bytes to be compatible with is_hugepage_mem_enough()
- */
-static unsigned long
-huge_pages_needed(struct address_space *mapping, struct vm_area_struct *vma)
-{
-	int i;
-	struct pagevec pvec;
-	unsigned long start = vma->vm_start;
-	unsigned long end = vma->vm_end;
-	unsigned long hugepages = (end - start) >> HPAGE_SHIFT;
-	pgoff_t next = vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT);
-	pgoff_t endpg = next + hugepages;
-
-	pagevec_init(&pvec, 0);
-	while (next < endpg) {
-		if (!pagevec_lookup(&pvec, mapping, next, PAGEVEC_SIZE))
-			break;
-		for (i = 0; i < pagevec_count(&pvec); i++) {
-			struct page *page = pvec.pages[i];
-			if (page->index > next)
-				next = page->index;
-			if (page->index >= endpg)
-				break;
-			next++;
-			hugepages--;
-		}
-		huge_pagevec_release(&pvec);
-	}
-	return hugepages << HPAGE_SHIFT;
-}
-
 static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	struct inode *inode = file->f_dentry->d_inode;
-	struct address_space *mapping = inode->i_mapping;
-	unsigned long bytes;
+	struct hugetlbfs_inode_info *info = HUGETLBFS_I(inode);
 	loff_t len, vma_len;
 	int ret;
 
@@ -113,10 +75,6 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 	if (vma->vm_end - vma->vm_start < HPAGE_SIZE)
 		return -EINVAL;
 
-	bytes = huge_pages_needed(mapping, vma);
-	if (!is_hugepage_mem_enough(bytes))
-		return -ENOMEM;
-
 	vma_len = (loff_t)(vma->vm_end - vma->vm_start);
 
 	mutex_lock(&inode->i_mutex);
@@ -129,6 +87,10 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 	if (!(vma->vm_flags & VM_WRITE) && len > inode->i_size)
 		goto out;
 
+	if (vma->vm_flags & VM_MAYSHARE)
+		if (hugetlb_extend_reservation(info, len >> HPAGE_SHIFT) != 0)
+			goto out;
+
 	ret = 0;
 	hugetlb_prefault_arch_hook(vma->vm_mm);
 	if (inode->i_size < len)
@@ -227,13 +189,18 @@ static void truncate_huge_page(struct page *page)
 	put_page(page);
 }
 
-static void truncate_hugepages(struct address_space *mapping, loff_t lstart)
+static void truncate_hugepages(struct inode *inode, loff_t lstart)
 {
+	struct address_space *mapping = &inode->i_data;
 	const pgoff_t start = lstart >> HPAGE_SHIFT;
 	struct pagevec pvec;
 	pgoff_t next;
 	int i;
 
+	hugetlb_truncate_reservation(HUGETLBFS_I(inode),
+				     lstart >> HPAGE_SHIFT);
+	if (!mapping->nrpages)
+		return;
 	pagevec_init(&pvec, 0);
 	next = start;
 	while (1) {
@@ -262,8 +229,7 @@ static void truncate_hugepages(struct address_space *mapping, loff_t lstart)
 
 static void hugetlbfs_delete_inode(struct inode *inode)
 {
-	if (inode->i_data.nrpages)
-		truncate_hugepages(&inode->i_data, 0);
+	truncate_hugepages(inode, 0);
 	clear_inode(inode);
 }
 
@@ -296,8 +262,7 @@ static void hugetlbfs_forget_inode(struct inode *inode)
 	inode->i_state |= I_FREEING;
 	inodes_stat.nr_inodes--;
 	spin_unlock(&inode_lock);
-	if (inode->i_data.nrpages)
-		truncate_hugepages(&inode->i_data, 0);
+	truncate_hugepages(inode, 0);
 	clear_inode(inode);
 	destroy_inode(inode);
 }
@@ -356,7 +321,7 @@ static int hugetlb_vmtruncate(struct inode *inode, loff_t offset)
 	if (!prio_tree_empty(&mapping->i_mmap))
 		hugetlb_vmtruncate_list(&mapping->i_mmap, pgoff);
 	spin_unlock(&mapping->i_mmap_lock);
-	truncate_hugepages(mapping, offset);
+	truncate_hugepages(inode, offset);
 	return 0;
 }
 
@@ -573,6 +538,7 @@ static struct inode *hugetlbfs_alloc_inode(struct super_block *sb)
 		hugetlbfs_inc_free_inodes(sbinfo);
 		return NULL;
 	}
+	p->prereserved_hpages = 0;
 	return &p->vfs_inode;
 }
 
@@ -771,21 +737,6 @@ static struct file_system_type hugetlbfs_fs_type = {
 
 static struct vfsmount *hugetlbfs_vfsmount;
 
-/*
- * Return the next identifier for a shm file
- */
-static unsigned long hugetlbfs_counter(void)
-{
-	static DEFINE_SPINLOCK(lock);
-	static unsigned long counter;
-	unsigned long ret;
-
-	spin_lock(&lock);
-	ret = ++counter;
-	spin_unlock(&lock);
-	return ret;
-}
-
 static int can_do_hugetlb_shm(void)
 {
 	return likely(capable(CAP_IPC_LOCK) ||
@@ -801,18 +752,16 @@ struct file *hugetlb_zero_setup(size_t size)
 	struct dentry *dentry, *root;
 	struct qstr quick_string;
 	char buf[16];
+	static atomic_t counter;
 
 	if (!can_do_hugetlb_shm())
 		return ERR_PTR(-EPERM);
 
-	if (!is_hugepage_mem_enough(size))
-		return ERR_PTR(-ENOMEM);
-
 	if (!user_shm_lock(size, current->user))
 		return ERR_PTR(-ENOMEM);
 
 	root = hugetlbfs_vfsmount->mnt_root;
-	snprintf(buf, 16, "%lu", hugetlbfs_counter());
+	snprintf(buf, 16, "%u", atomic_inc_return(&counter));
 	quick_string.name = buf;
 	quick_string.len = strlen(quick_string.name);
 	quick_string.hash = 0;
@@ -831,6 +780,11 @@ struct file *hugetlb_zero_setup(size_t size)
 	if (!inode)
 		goto out_file;
 
+	error = -ENOMEM;
+	if (hugetlb_extend_reservation(HUGETLBFS_I(inode),
+				       size >> HPAGE_SHIFT) != 0)
+		goto out_inode;
+
 	d_instantiate(dentry, inode);
 	inode->i_size = size;
 	inode->i_nlink = 0;
@@ -841,6 +795,8 @@ struct file *hugetlb_zero_setup(size_t size)
 	file->f_mode = FMODE_WRITE | FMODE_READ;
 	return file;
 
+out_inode:
+	iput(inode);
 out_file:
 	put_filp(file);
 out_dentry:
diff --git a/fs/isofs/joliet.c b/fs/isofs/joliet.c
index 2931de7f1a6a..81a90e170ac3 100644
--- a/fs/isofs/joliet.c
+++ b/fs/isofs/joliet.c
@@ -11,7 +11,7 @@
 #include "isofs.h"
 
 /*
- * Convert Unicode 16 to UTF8 or ASCII.
+ * Convert Unicode 16 to UTF-8 or ASCII.
  */
 static int
 uni16_to_x8(unsigned char *ascii, u16 *uni, int len, struct nls_table *nls)
diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c
index b635e167a3fa..d4d0c41490cd 100644
--- a/fs/jffs2/nodelist.c
+++ b/fs/jffs2/nodelist.c
@@ -406,7 +406,8 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
 	int err = 0, pointed = 0;
 	struct jffs2_eraseblock *jeb;
 	unsigned char *buffer;
-	uint32_t crc, ofs, retlen, len;
+	uint32_t crc, ofs, len;
+	size_t retlen;
 
 	BUG_ON(tn->csize == 0);
 
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 5f0652df5d47..f1695642d0f7 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -112,7 +112,7 @@ static struct jffs2_raw_node_ref *jffs2_first_valid_node(struct jffs2_raw_node_r
  * 	    negative error code on failure.
  */
 static inline int read_direntry(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref,
-				struct jffs2_raw_dirent *rd, uint32_t read, struct jffs2_full_dirent **fdp,
+				struct jffs2_raw_dirent *rd, size_t read, struct jffs2_full_dirent **fdp,
 				uint32_t *latest_mctime, uint32_t *mctime_ver)
 {
 	struct jffs2_full_dirent *fd;
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 3e51dd1da8aa..cf55b221fc2b 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -233,7 +233,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 		c->nextblock->dirty_size = 0;
 	}
 #ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-	if (!jffs2_can_mark_obsolete(c) && c->nextblock && (c->nextblock->free_size % c->wbuf_pagesize)) {
+	if (!jffs2_can_mark_obsolete(c) && c->wbuf_pagesize && c->nextblock && (c->nextblock->free_size % c->wbuf_pagesize)) {
 		/* If we're going to start writing into a block which already
 		   contains data, and the end of the data isn't page-aligned,
 		   skip a little and align it. */
diff --git a/fs/jfs/Makefile b/fs/jfs/Makefile
index 6f1e0e95587a..3adb6395e42d 100644
--- a/fs/jfs/Makefile
+++ b/fs/jfs/Makefile
@@ -8,7 +8,8 @@ jfs-y    := super.o file.o inode.o namei.o jfs_mount.o jfs_umount.o \
 	    jfs_xtree.o jfs_imap.o jfs_debug.o jfs_dmap.o \
 	    jfs_unicode.o jfs_dtree.o jfs_inode.o \
 	    jfs_extent.o symlink.o jfs_metapage.o \
-	    jfs_logmgr.o jfs_txnmgr.o jfs_uniupr.o resize.o xattr.o
+	    jfs_logmgr.o jfs_txnmgr.o jfs_uniupr.o \
+	    resize.o xattr.o ioctl.o
 
 jfs-$(CONFIG_JFS_POSIX_ACL) += acl.o
 
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 461e4934ca7c..e2281300979c 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -183,6 +183,9 @@ cleanup:
 		posix_acl_release(acl);
 	} else
 		inode->i_mode &= ~current->fs->umask;
+	
+	JFS_IP(inode)->mode2 = (JFS_IP(inode)->mode2 & 0xffff0000) |
+			       inode->i_mode;
 
 	return rc;
 }
@@ -207,12 +210,12 @@ static int jfs_acl_chmod(struct inode *inode)
 	rc = posix_acl_chmod_masq(clone, inode->i_mode);
 	if (!rc) {
 		tid_t tid = txBegin(inode->i_sb, 0);
-		down(&JFS_IP(inode)->commit_sem);
+		mutex_lock(&JFS_IP(inode)->commit_mutex);
 		rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, clone);
 		if (!rc)
 			rc = txCommit(tid, 1, &inode, 0);
 		txEnd(tid);
-		up(&JFS_IP(inode)->commit_sem);
+		mutex_unlock(&JFS_IP(inode)->commit_mutex);
 	}
 
 	posix_acl_release(clone);
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index c2c19c9ed9a4..e1ac6e497e2b 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -113,4 +113,5 @@ struct file_operations jfs_file_operations = {
  	.sendfile	= generic_file_sendfile,
 	.fsync		= jfs_fsync,
 	.release	= jfs_release,
+	.ioctl		= jfs_ioctl,
 };
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 9f942ca8e4e3..51a5fed90cca 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -55,6 +55,7 @@ void jfs_read_inode(struct inode *inode)
 		inode->i_op = &jfs_file_inode_operations;
 		init_special_inode(inode, inode->i_mode, inode->i_rdev);
 	}
+	jfs_set_inode_flags(inode);
 }
 
 /*
@@ -89,16 +90,16 @@ int jfs_commit_inode(struct inode *inode, int wait)
 	}
 
 	tid = txBegin(inode->i_sb, COMMIT_INODE);
-	down(&JFS_IP(inode)->commit_sem);
+	mutex_lock(&JFS_IP(inode)->commit_mutex);
 
 	/*
-	 * Retest inode state after taking commit_sem
+	 * Retest inode state after taking commit_mutex
 	 */
 	if (inode->i_nlink && test_cflag(COMMIT_Dirty, inode))
 		rc = txCommit(tid, 1, &inode, wait ? COMMIT_SYNC : 0);
 
 	txEnd(tid);
-	up(&JFS_IP(inode)->commit_sem);
+	mutex_unlock(&JFS_IP(inode)->commit_mutex);
 	return rc;
 }
 
@@ -335,18 +336,18 @@ void jfs_truncate_nolock(struct inode *ip, loff_t length)
 		tid = txBegin(ip->i_sb, 0);
 
 		/*
-		 * The commit_sem cannot be taken before txBegin.
+		 * The commit_mutex cannot be taken before txBegin.
 		 * txBegin may block and there is a chance the inode
 		 * could be marked dirty and need to be committed
 		 * before txBegin unblocks
 		 */
-		down(&JFS_IP(ip)->commit_sem);
+		mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 		newsize = xtTruncate(tid, ip, length,
 				     COMMIT_TRUNCATE | COMMIT_PWMAP);
 		if (newsize < 0) {
 			txEnd(tid);
-			up(&JFS_IP(ip)->commit_sem);
+			mutex_unlock(&JFS_IP(ip)->commit_mutex);
 			break;
 		}
 
@@ -355,7 +356,7 @@ void jfs_truncate_nolock(struct inode *ip, loff_t length)
 
 		txCommit(tid, 1, &ip, 0);
 		txEnd(tid);
-		up(&JFS_IP(ip)->commit_sem);
+		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 	} while (newsize > length);	/* Truncate isn't always atomic */
 }
 
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
new file mode 100644
index 000000000000..67b3774820eb
--- /dev/null
+++ b/fs/jfs/ioctl.c
@@ -0,0 +1,107 @@
+/*
+ * linux/fs/jfs/ioctl.c
+ *
+ * Copyright (C) 2006 Herbert Poetzl
+ * adapted from Remy Card's ext2/ioctl.c
+ */
+
+#include <linux/fs.h>
+#include <linux/ext2_fs.h>
+#include <linux/ctype.h>
+#include <linux/capability.h>
+#include <linux/time.h>
+#include <asm/current.h>
+#include <asm/uaccess.h>
+
+#include "jfs_incore.h"
+#include "jfs_dinode.h"
+#include "jfs_inode.h"
+
+
+static struct {
+	long jfs_flag;
+	long ext2_flag;
+} jfs_map[] = {
+	{JFS_NOATIME_FL, EXT2_NOATIME_FL},
+	{JFS_DIRSYNC_FL, EXT2_DIRSYNC_FL},
+	{JFS_SYNC_FL, EXT2_SYNC_FL},
+	{JFS_SECRM_FL, EXT2_SECRM_FL},
+	{JFS_UNRM_FL, EXT2_UNRM_FL},
+	{JFS_APPEND_FL, EXT2_APPEND_FL},
+	{JFS_IMMUTABLE_FL, EXT2_IMMUTABLE_FL},
+	{0, 0},
+};
+
+static long jfs_map_ext2(unsigned long flags, int from)
+{
+	int index=0;
+	long mapped=0;
+
+	while (jfs_map[index].jfs_flag) {
+		if (from) {
+			if (jfs_map[index].ext2_flag & flags)
+				mapped |= jfs_map[index].jfs_flag;
+		} else {
+			if (jfs_map[index].jfs_flag & flags)
+				mapped |= jfs_map[index].ext2_flag;
+		}
+		index++;
+	}
+	return mapped;
+}
+
+
+int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
+		unsigned long arg)
+{
+	struct jfs_inode_info *jfs_inode = JFS_IP(inode);
+	unsigned int flags;
+
+	switch (cmd) {
+	case JFS_IOC_GETFLAGS:
+		flags = jfs_inode->mode2 & JFS_FL_USER_VISIBLE;
+		flags = jfs_map_ext2(flags, 0);
+		return put_user(flags, (int __user *) arg);
+	case JFS_IOC_SETFLAGS: {
+		unsigned int oldflags;
+
+		if (IS_RDONLY(inode))
+			return -EROFS;
+
+		if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+			return -EACCES;
+
+		if (get_user(flags, (int __user *) arg))
+			return -EFAULT;
+
+		flags = jfs_map_ext2(flags, 1);
+		if (!S_ISDIR(inode->i_mode))
+			flags &= ~JFS_DIRSYNC_FL;
+
+		oldflags = jfs_inode->mode2;
+
+		/*
+		 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
+		 * the relevant capability.
+		 */
+		if ((oldflags & JFS_IMMUTABLE_FL) ||
+			((flags ^ oldflags) &
+			(JFS_APPEND_FL | JFS_IMMUTABLE_FL))) {
+			if (!capable(CAP_LINUX_IMMUTABLE))
+				return -EPERM;
+		}
+
+		flags = flags & JFS_FL_USER_MODIFIABLE;
+		flags |= oldflags & ~JFS_FL_USER_MODIFIABLE;
+		jfs_inode->mode2 = flags;
+
+		jfs_set_inode_flags(inode);
+		inode->i_ctime = CURRENT_TIME_SEC;
+		mark_inode_dirty(inode);
+		return 0;
+	}
+	default:
+		return -ENOTTY;
+	}
+}
+
diff --git a/fs/jfs/jfs_dinode.h b/fs/jfs/jfs_dinode.h
index 580a3258449b..9f2572aea561 100644
--- a/fs/jfs/jfs_dinode.h
+++ b/fs/jfs/jfs_dinode.h
@@ -139,13 +139,36 @@ struct dinode {
 
 /* more extended mode bits: attributes for OS/2 */
 #define IREADONLY	0x02000000	/* no write access to file */
-#define IARCHIVE	0x40000000	/* file archive bit */
-#define ISYSTEM		0x08000000	/* system file */
 #define IHIDDEN		0x04000000	/* hidden file */
-#define IRASH		0x4E000000	/* mask for changeable attributes */
-#define INEWNAME	0x80000000	/* non-8.3 filename format */
+#define ISYSTEM		0x08000000	/* system file */
+
 #define IDIRECTORY	0x20000000	/* directory (shadow of real bit) */
+#define IARCHIVE	0x40000000	/* file archive bit */
+#define INEWNAME	0x80000000	/* non-8.3 filename format */
+
+#define IRASH		0x4E000000	/* mask for changeable attributes */
 #define ATTRSHIFT	25	/* bits to shift to move attribute
 				   specification to mode position */
 
+/* extended attributes for Linux */
+
+#define JFS_NOATIME_FL		0x00080000 /* do not update atime */
+
+#define JFS_DIRSYNC_FL		0x00100000 /* dirsync behaviour */
+#define JFS_SYNC_FL		0x00200000 /* Synchronous updates */
+#define JFS_SECRM_FL		0x00400000 /* Secure deletion */
+#define JFS_UNRM_FL		0x00800000 /* allow for undelete */
+
+#define JFS_APPEND_FL		0x01000000 /* writes to file may only append */
+#define JFS_IMMUTABLE_FL	0x02000000 /* Immutable file */
+
+#define JFS_FL_USER_VISIBLE	0x03F80000
+#define JFS_FL_USER_MODIFIABLE	0x03F80000
+#define JFS_FL_INHERIT		0x03C80000
+
+/* These are identical to EXT[23]_IOC_GETFLAGS/SETFLAGS */
+#define JFS_IOC_GETFLAGS	_IOR('f', 1, long)
+#define JFS_IOC_SETFLAGS	_IOW('f', 2, long)
+
+
 #endif /*_H_JFS_DINODE */
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index 2967b7393415..c161c98954e0 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -64,9 +64,9 @@
  *	to the persistent bitmaps in dmaps) is guarded by (busy) buffers.
  */
 
-#define BMAP_LOCK_INIT(bmp)	init_MUTEX(&bmp->db_bmaplock)
-#define BMAP_LOCK(bmp)		down(&bmp->db_bmaplock)
-#define BMAP_UNLOCK(bmp)	up(&bmp->db_bmaplock)
+#define BMAP_LOCK_INIT(bmp)	mutex_init(&bmp->db_bmaplock)
+#define BMAP_LOCK(bmp)		mutex_lock(&bmp->db_bmaplock)
+#define BMAP_UNLOCK(bmp)	mutex_unlock(&bmp->db_bmaplock)
 
 /*
  * forward references
@@ -125,7 +125,7 @@ static int dbGetL2AGSize(s64 nblocks);
  * into the table, with the table elements yielding the maximum
  * binary buddy of free bits within the character.
  */
-static s8 budtab[256] = {
+static const s8 budtab[256] = {
 	3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
 	2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
@@ -532,10 +532,10 @@ dbUpdatePMap(struct inode *ipbmap,
 
 		lastlblkno = lblkno;
 
+		LOGSYNC_LOCK(log, flags);
 		if (mp->lsn != 0) {
 			/* inherit older/smaller lsn */
 			logdiff(diffp, mp->lsn, log);
-			LOGSYNC_LOCK(log, flags);
 			if (difft < diffp) {
 				mp->lsn = lsn;
 
@@ -548,20 +548,17 @@ dbUpdatePMap(struct inode *ipbmap,
 			logdiff(diffp, mp->clsn, log);
 			if (difft > diffp)
 				mp->clsn = tblk->clsn;
-			LOGSYNC_UNLOCK(log, flags);
 		} else {
 			mp->log = log;
 			mp->lsn = lsn;
 
 			/* insert bp after tblock in logsync list */
-			LOGSYNC_LOCK(log, flags);
-
 			log->count++;
 			list_add(&mp->synclist, &tblk->synclist);
 
 			mp->clsn = tblk->clsn;
-			LOGSYNC_UNLOCK(log, flags);
 		}
+		LOGSYNC_UNLOCK(log, flags);
 	}
 
 	/* write the last buffer. */
diff --git a/fs/jfs/jfs_dmap.h b/fs/jfs/jfs_dmap.h
index 32e25884e7e8..8b14cc8e0228 100644
--- a/fs/jfs/jfs_dmap.h
+++ b/fs/jfs/jfs_dmap.h
@@ -243,7 +243,7 @@ struct dbmap {
 struct bmap {
 	struct dbmap db_bmap;		/* on-disk aggregate map descriptor */
 	struct inode *db_ipbmap;	/* ptr to aggregate map incore inode */
-	struct semaphore db_bmaplock;	/* aggregate map lock */
+	struct mutex db_bmaplock;	/* aggregate map lock */
 	atomic_t db_active[MAXAG];	/* count of active, open files in AG */
 	u32 *db_DBmap;
 };
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index 404f33eae507..6c3f08319846 100644
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -1005,6 +1005,9 @@ static int dtSplitUp(tid_t tid,
 
 		DT_PUTPAGE(smp);
 
+		if (!DO_INDEX(ip))
+			ip->i_size = xlen << sbi->l2bsize;
+
 		goto freeKeyName;
 	}
 
@@ -1055,7 +1058,9 @@ static int dtSplitUp(tid_t tid,
 				xaddr = addressPXD(pxd) + xlen;
 				dbFree(ip, xaddr, (s64) n);
 			}
-		}
+		} else if (!DO_INDEX(ip))
+			ip->i_size = lengthPXD(pxd) << sbi->l2bsize;
+
 
 	      extendOut:
 		DT_PUTPAGE(smp);
@@ -1098,6 +1103,9 @@ static int dtSplitUp(tid_t tid,
 		goto splitOut;
 	}
 
+	if (!DO_INDEX(ip))
+		ip->i_size += PSIZE;
+
 	/*
 	 * propagate up the router entry for the leaf page just split
 	 *
@@ -2424,6 +2432,9 @@ static int dtDeleteUp(tid_t tid, struct inode *ip,
 		break;
 	}
 
+	if (!DO_INDEX(ip))
+		ip->i_size -= PSIZE;
+
 	return 0;
 }
 
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c
index 4879603daa1c..5549378358bf 100644
--- a/fs/jfs/jfs_extent.c
+++ b/fs/jfs/jfs_extent.c
@@ -94,7 +94,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, boolean_t abnr)
 	txBeginAnon(ip->i_sb);
 
 	/* Avoid race with jfs_commit_inode() */
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	/* validate extent length */
 	if (xlen > MAXXLEN)
@@ -136,14 +136,14 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, boolean_t abnr)
 	 */
 	nxlen = xlen;
 	if ((rc = extBalloc(ip, hint ? hint : INOHINT(ip), &nxlen, &nxaddr))) {
-		up(&JFS_IP(ip)->commit_sem);
+		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 		return (rc);
 	}
 
 	/* Allocate blocks to quota. */
 	if (DQUOT_ALLOC_BLOCK(ip, nxlen)) {
 		dbFree(ip, nxaddr, (s64) nxlen);
-		up(&JFS_IP(ip)->commit_sem);
+		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 		return -EDQUOT;
 	}
 
@@ -165,7 +165,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, boolean_t abnr)
 	if (rc) {
 		dbFree(ip, nxaddr, nxlen);
 		DQUOT_FREE_BLOCK(ip, nxlen);
-		up(&JFS_IP(ip)->commit_sem);
+		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 		return (rc);
 	}
 
@@ -177,7 +177,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 pno, xad_t * xp, boolean_t abnr)
 
 	mark_inode_dirty(ip);
 
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 	/*
 	 * COMMIT_SyncList flags an anonymous tlock on page that is on
 	 * sync list.
@@ -222,7 +222,7 @@ int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, boolean_t abnr)
 	/* This blocks if we are low on resources */
 	txBeginAnon(ip->i_sb);
 
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 	/* validate extent length */
 	if (nxlen > MAXXLEN)
 		nxlen = MAXXLEN;
@@ -258,7 +258,7 @@ int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, boolean_t abnr)
 	/* Allocat blocks to quota. */
 	if (DQUOT_ALLOC_BLOCK(ip, nxlen)) {
 		dbFree(ip, nxaddr, (s64) nxlen);
-		up(&JFS_IP(ip)->commit_sem);
+		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 		return -EDQUOT;
 	}
 
@@ -338,7 +338,7 @@ int extRealloc(struct inode *ip, s64 nxlen, xad_t * xp, boolean_t abnr)
 
 	mark_inode_dirty(ip);
 exit:
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 	return (rc);
 }
 #endif			/* _NOTYET */
@@ -439,12 +439,12 @@ int extRecord(struct inode *ip, xad_t * xp)
 
 	txBeginAnon(ip->i_sb);
 
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	/* update the extent */
 	rc = xtUpdate(0, ip, xp);
 
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 	return rc;
 }
 
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 31b4aa13dd4b..ccbe60aff83d 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -66,14 +66,14 @@ static HLIST_HEAD(aggregate_hash);
  * imap locks
  */
 /* iag free list lock */
-#define IAGFREE_LOCK_INIT(imap)		init_MUTEX(&imap->im_freelock)
-#define IAGFREE_LOCK(imap)		down(&imap->im_freelock)
-#define IAGFREE_UNLOCK(imap)		up(&imap->im_freelock)
+#define IAGFREE_LOCK_INIT(imap)		mutex_init(&imap->im_freelock)
+#define IAGFREE_LOCK(imap)		mutex_lock(&imap->im_freelock)
+#define IAGFREE_UNLOCK(imap)		mutex_unlock(&imap->im_freelock)
 
 /* per ag iag list locks */
-#define AG_LOCK_INIT(imap,index)	init_MUTEX(&(imap->im_aglock[index]))
-#define AG_LOCK(imap,agno)		down(&imap->im_aglock[agno])
-#define AG_UNLOCK(imap,agno)		up(&imap->im_aglock[agno])
+#define AG_LOCK_INIT(imap,index)	mutex_init(&(imap->im_aglock[index]))
+#define AG_LOCK(imap,agno)		mutex_lock(&imap->im_aglock[agno])
+#define AG_UNLOCK(imap,agno)		mutex_unlock(&imap->im_aglock[agno])
 
 /*
  * forward references
@@ -1261,7 +1261,7 @@ int diFree(struct inode *ip)
 	 * to be freed by the transaction;  
 	 */
 	tid = txBegin(ipimap->i_sb, COMMIT_FORCE);
-	down(&JFS_IP(ipimap)->commit_sem);
+	mutex_lock(&JFS_IP(ipimap)->commit_mutex);
 
 	/* acquire tlock of the iag page of the freed ixad 
 	 * to force the page NOHOMEOK (even though no data is
@@ -1294,7 +1294,7 @@ int diFree(struct inode *ip)
 	rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE);
 
 	txEnd(tid);
-	up(&JFS_IP(ipimap)->commit_sem);
+	mutex_unlock(&JFS_IP(ipimap)->commit_mutex);
 
 	/* unlock the AG inode map information */
 	AG_UNLOCK(imap, agno);
@@ -2554,13 +2554,13 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 		 * addressing structure pointing to the new iag page;
 		 */
 		tid = txBegin(sb, COMMIT_FORCE);
-		down(&JFS_IP(ipimap)->commit_sem);
+		mutex_lock(&JFS_IP(ipimap)->commit_mutex);
 
 		/* update the inode map addressing structure to point to it */
 		if ((rc =
 		     xtInsert(tid, ipimap, 0, blkno, xlen, &xaddr, 0))) {
 			txEnd(tid);
-			up(&JFS_IP(ipimap)->commit_sem);
+			mutex_unlock(&JFS_IP(ipimap)->commit_mutex);
 			/* Free the blocks allocated for the iag since it was
 			 * not successfully added to the inode map
 			 */
@@ -2626,7 +2626,7 @@ diNewIAG(struct inomap * imap, int *iagnop, int agno, struct metapage ** mpp)
 		rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE);
 
 		txEnd(tid);
-		up(&JFS_IP(ipimap)->commit_sem);
+		mutex_unlock(&JFS_IP(ipimap)->commit_mutex);
 
 		duplicateIXtree(sb, blkno, xlen, &xaddr);
 
@@ -2844,11 +2844,11 @@ diUpdatePMap(struct inode *ipimap,
 	 */
 	lsn = tblk->lsn;
 	log = JFS_SBI(tblk->sb)->log;
+	LOGSYNC_LOCK(log, flags);
 	if (mp->lsn != 0) {
 		/* inherit older/smaller lsn */
 		logdiff(difft, lsn, log);
 		logdiff(diffp, mp->lsn, log);
-		LOGSYNC_LOCK(log, flags);
 		if (difft < diffp) {
 			mp->lsn = lsn;
 			/* move mp after tblock in logsync list */
@@ -2860,17 +2860,15 @@ diUpdatePMap(struct inode *ipimap,
 		logdiff(diffp, mp->clsn, log);
 		if (difft > diffp)
 			mp->clsn = tblk->clsn;
-		LOGSYNC_UNLOCK(log, flags);
 	} else {
 		mp->log = log;
 		mp->lsn = lsn;
 		/* insert mp after tblock in logsync list */
-		LOGSYNC_LOCK(log, flags);
 		log->count++;
 		list_add(&mp->synclist, &tblk->synclist);
 		mp->clsn = tblk->clsn;
-		LOGSYNC_UNLOCK(log, flags);
 	}
+	LOGSYNC_UNLOCK(log, flags);
 	write_metapage(mp);
 	return (0);
 }
@@ -3076,14 +3074,40 @@ static void duplicateIXtree(struct super_block *sb, s64 blkno,
 static int copy_from_dinode(struct dinode * dip, struct inode *ip)
 {
 	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
 
 	jfs_ip->fileset = le32_to_cpu(dip->di_fileset);
 	jfs_ip->mode2 = le32_to_cpu(dip->di_mode);
 
 	ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff;
+	if (sbi->umask != -1) {
+		ip->i_mode = (ip->i_mode & ~0777) | (0777 & ~sbi->umask);
+		/* For directories, add x permission if r is allowed by umask */
+		if (S_ISDIR(ip->i_mode)) {
+			if (ip->i_mode & 0400)
+				ip->i_mode |= 0100;
+			if (ip->i_mode & 0040)
+				ip->i_mode |= 0010;
+			if (ip->i_mode & 0004)
+				ip->i_mode |= 0001;
+		}
+	}
 	ip->i_nlink = le32_to_cpu(dip->di_nlink);
-	ip->i_uid = le32_to_cpu(dip->di_uid);
-	ip->i_gid = le32_to_cpu(dip->di_gid);
+
+	jfs_ip->saved_uid = le32_to_cpu(dip->di_uid);
+	if (sbi->uid == -1)
+		ip->i_uid = jfs_ip->saved_uid;
+	else {
+		ip->i_uid = sbi->uid;
+	}
+
+	jfs_ip->saved_gid = le32_to_cpu(dip->di_gid);
+	if (sbi->gid == -1)
+		ip->i_gid = jfs_ip->saved_gid;
+	else {
+		ip->i_gid = sbi->gid;
+	}
+
 	ip->i_size = le64_to_cpu(dip->di_size);
 	ip->i_atime.tv_sec = le32_to_cpu(dip->di_atime.tv_sec);
 	ip->i_atime.tv_nsec = le32_to_cpu(dip->di_atime.tv_nsec);
@@ -3134,21 +3158,33 @@ static int copy_from_dinode(struct dinode * dip, struct inode *ip)
 static void copy_to_dinode(struct dinode * dip, struct inode *ip)
 {
 	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
 
 	dip->di_fileset = cpu_to_le32(jfs_ip->fileset);
-	dip->di_inostamp = cpu_to_le32(JFS_SBI(ip->i_sb)->inostamp);
+	dip->di_inostamp = cpu_to_le32(sbi->inostamp);
 	dip->di_number = cpu_to_le32(ip->i_ino);
 	dip->di_gen = cpu_to_le32(ip->i_generation);
 	dip->di_size = cpu_to_le64(ip->i_size);
 	dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks));
 	dip->di_nlink = cpu_to_le32(ip->i_nlink);
-	dip->di_uid = cpu_to_le32(ip->i_uid);
-	dip->di_gid = cpu_to_le32(ip->i_gid);
+	if (sbi->uid == -1)
+		dip->di_uid = cpu_to_le32(ip->i_uid);
+	else
+		dip->di_uid = cpu_to_le32(jfs_ip->saved_uid);
+	if (sbi->gid == -1)
+		dip->di_gid = cpu_to_le32(ip->i_gid);
+	else
+		dip->di_gid = cpu_to_le32(jfs_ip->saved_gid);
 	/*
 	 * mode2 is only needed for storing the higher order bits.
 	 * Trust i_mode for the lower order ones
 	 */
-	dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) | ip->i_mode);
+	if (sbi->umask == -1)
+		dip->di_mode = cpu_to_le32((jfs_ip->mode2 & 0xffff0000) |
+					   ip->i_mode);
+	else /* Leave the original permissions alone */
+		dip->di_mode = cpu_to_le32(jfs_ip->mode2);
+
 	dip->di_atime.tv_sec = cpu_to_le32(ip->i_atime.tv_sec);
 	dip->di_atime.tv_nsec = cpu_to_le32(ip->i_atime.tv_nsec);
 	dip->di_ctime.tv_sec = cpu_to_le32(ip->i_ctime.tv_sec);
diff --git a/fs/jfs/jfs_imap.h b/fs/jfs/jfs_imap.h
index 6b59adec036a..6e24465f0f98 100644
--- a/fs/jfs/jfs_imap.h
+++ b/fs/jfs/jfs_imap.h
@@ -140,8 +140,8 @@ struct dinomap {
 struct inomap {
 	struct dinomap im_imap;		/* 4096: inode allocation control */
 	struct inode *im_ipimap;	/* 4: ptr to inode for imap   */
-	struct semaphore im_freelock;	/* 4: iag free list lock      */
-	struct semaphore im_aglock[MAXAG];	/* 512: per AG locks          */
+	struct mutex im_freelock;	/* 4: iag free list lock      */
+	struct mutex im_aglock[MAXAG];	/* 512: per AG locks          */
 	u32 *im_DBGdimap;
 	atomic_t im_numinos;	/* num of backed inodes */
 	atomic_t im_numfree;	/* num of free backed inodes */
diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h
index dc21a5bd54d4..54d73716ca8c 100644
--- a/fs/jfs/jfs_incore.h
+++ b/fs/jfs/jfs_incore.h
@@ -19,6 +19,7 @@
 #ifndef _H_JFS_INCORE
 #define _H_JFS_INCORE
 
+#include <linux/mutex.h>
 #include <linux/rwsem.h>
 #include <linux/slab.h>
 #include <linux/bitops.h>
@@ -37,6 +38,8 @@
 struct jfs_inode_info {
 	int	fileset;	/* fileset number (always 16)*/
 	uint	mode2;		/* jfs-specific mode		*/
+	uint	saved_uid;	/* saved for uid mount option */
+	uint	saved_gid;	/* saved for gid mount option */
 	pxd_t   ixpxd;		/* inode extent descriptor	*/
 	dxd_t	acl;		/* dxd describing acl	*/
 	dxd_t	ea;		/* dxd describing ea	*/
@@ -62,12 +65,12 @@ struct jfs_inode_info {
 	 */
 	struct rw_semaphore rdwrlock;
 	/*
-	 * commit_sem serializes transaction processing on an inode.
+	 * commit_mutex serializes transaction processing on an inode.
 	 * It must be taken after beginning a transaction (txBegin), since
 	 * dirty inodes may be committed while a new transaction on the
 	 * inode is blocked in txBegin or TxBeginAnon
 	 */
-	struct semaphore commit_sem;
+	struct mutex commit_mutex;
 	/* xattr_sem allows us to access the xattrs without taking i_mutex */
 	struct rw_semaphore xattr_sem;
 	lid_t	xtlid;		/* lid of xtree lock on directory */
@@ -169,6 +172,9 @@ struct jfs_sb_info {
 	uint		state;		/* mount/recovery state	*/
 	unsigned long	flag;		/* mount time flags */
 	uint		p_state;	/* state prior to going no integrity */
+	uint		uid;		/* uid to override on-disk uid */
+	uint		gid;		/* gid to override on-disk gid */
+	uint		umask;		/* umask to override on-disk umask */
 };
 
 /* jfs_sb_info commit_state */
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 2af5efbfd06f..495df402916d 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -25,6 +25,26 @@
 #include "jfs_dinode.h"
 #include "jfs_debug.h"
 
+
+void jfs_set_inode_flags(struct inode *inode)
+{
+	unsigned int flags = JFS_IP(inode)->mode2;
+
+	inode->i_flags &= ~(S_IMMUTABLE | S_APPEND |
+		S_NOATIME | S_DIRSYNC | S_SYNC);
+
+	if (flags & JFS_IMMUTABLE_FL)
+		inode->i_flags |= S_IMMUTABLE;
+	if (flags & JFS_APPEND_FL)
+		inode->i_flags |= S_APPEND;
+	if (flags & JFS_NOATIME_FL)
+		inode->i_flags |= S_NOATIME;
+	if (flags & JFS_DIRSYNC_FL)
+		inode->i_flags |= S_DIRSYNC;
+	if (flags & JFS_SYNC_FL)
+		inode->i_flags |= S_SYNC;
+}
+
 /*
  * NAME:	ialloc()
  *
@@ -63,6 +83,13 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
 		inode->i_gid = current->fsgid;
 
 	/*
+	 * New inodes need to save sane values on disk when
+	 * uid & gid mount options are used
+	 */
+	jfs_inode->saved_uid = inode->i_uid;
+	jfs_inode->saved_gid = inode->i_gid;
+
+	/*
 	 * Allocate inode to quota.
 	 */
 	if (DQUOT_ALLOC_INODE(inode)) {
@@ -74,10 +101,20 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
 	}
 
 	inode->i_mode = mode;
-	if (S_ISDIR(mode))
-		jfs_inode->mode2 = IDIRECTORY | mode;
-	else
-		jfs_inode->mode2 = INLINEEA | ISPARSE | mode;
+	/* inherit flags from parent */
+	jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
+
+	if (S_ISDIR(mode)) {
+		jfs_inode->mode2 |= IDIRECTORY;
+		jfs_inode->mode2 &= ~JFS_DIRSYNC_FL;
+	}
+	else {
+		jfs_inode->mode2 |= INLINEEA | ISPARSE;
+		if (S_ISLNK(mode))
+			jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
+	}
+	jfs_inode->mode2 |= mode;
+
 	inode->i_blksize = sb->s_blocksize;
 	inode->i_blocks = 0;
 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
@@ -98,6 +135,7 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
 	jfs_inode->atlhead = 0;
 	jfs_inode->atltail = 0;
 	jfs_inode->xtlid = 0;
+	jfs_set_inode_flags(inode);
 
 	jfs_info("ialloc returns inode = 0x%p\n", inode);
 
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index b54bac576cb3..095d471b9f9a 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -20,6 +20,8 @@
 
 extern struct inode *ialloc(struct inode *, umode_t);
 extern int jfs_fsync(struct file *, struct dentry *, int);
+extern int jfs_ioctl(struct inode *, struct file *,
+			unsigned int, unsigned long);
 extern void jfs_read_inode(struct inode *);
 extern int jfs_commit_inode(struct inode *, int);
 extern int jfs_write_inode(struct inode*, int);
@@ -29,6 +31,7 @@ extern void jfs_truncate(struct inode *);
 extern void jfs_truncate_nolock(struct inode *, loff_t);
 extern void jfs_free_zero_link(struct inode *);
 extern struct dentry *jfs_get_parent(struct dentry *dentry);
+extern void jfs_set_inode_flags(struct inode *);
 
 extern struct address_space_operations jfs_aops;
 extern struct inode_operations jfs_dir_inode_operations;
diff --git a/fs/jfs/jfs_lock.h b/fs/jfs/jfs_lock.h
index 10ad1d086685..70ac9f7d1e00 100644
--- a/fs/jfs/jfs_lock.h
+++ b/fs/jfs/jfs_lock.h
@@ -20,6 +20,7 @@
 #define _H_JFS_LOCK
 
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/sched.h>
 
 /*
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index d27bac6acaa3..0b348b13b551 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -64,6 +64,7 @@
 #include <linux/interrupt.h>
 #include <linux/smp_lock.h>
 #include <linux/completion.h>
+#include <linux/kthread.h>
 #include <linux/buffer_head.h>		/* for sync_blockdev() */
 #include <linux/bio.h>
 #include <linux/suspend.h>
@@ -81,15 +82,14 @@
  */
 static struct lbuf *log_redrive_list;
 static DEFINE_SPINLOCK(log_redrive_lock);
-DECLARE_WAIT_QUEUE_HEAD(jfs_IO_thread_wait);
 
 
 /*
  *	log read/write serialization (per log)
  */
-#define LOG_LOCK_INIT(log)	init_MUTEX(&(log)->loglock)
-#define LOG_LOCK(log)		down(&((log)->loglock))
-#define LOG_UNLOCK(log)		up(&((log)->loglock))
+#define LOG_LOCK_INIT(log)	mutex_init(&(log)->loglock)
+#define LOG_LOCK(log)		mutex_lock(&((log)->loglock))
+#define LOG_UNLOCK(log)		mutex_unlock(&((log)->loglock))
 
 
 /*
@@ -1105,11 +1105,10 @@ int lmLogOpen(struct super_block *sb)
 		}
 	}
 
-	if (!(log = kmalloc(sizeof(struct jfs_log), GFP_KERNEL))) {
+	if (!(log = kzalloc(sizeof(struct jfs_log), GFP_KERNEL))) {
 		up(&jfs_log_sem);
 		return -ENOMEM;
 	}
-	memset(log, 0, sizeof(struct jfs_log));
 	INIT_LIST_HEAD(&log->sb_list);
 	init_waitqueue_head(&log->syncwait);
 
@@ -1181,9 +1180,8 @@ static int open_inline_log(struct super_block *sb)
 	struct jfs_log *log;
 	int rc;
 
-	if (!(log = kmalloc(sizeof(struct jfs_log), GFP_KERNEL)))
+	if (!(log = kzalloc(sizeof(struct jfs_log), GFP_KERNEL)))
 		return -ENOMEM;
-	memset(log, 0, sizeof(struct jfs_log));
 	INIT_LIST_HEAD(&log->sb_list);
 	init_waitqueue_head(&log->syncwait);
 
@@ -1216,12 +1214,11 @@ static int open_dummy_log(struct super_block *sb)
 
 	down(&jfs_log_sem);
 	if (!dummy_log) {
-		dummy_log = kmalloc(sizeof(struct jfs_log), GFP_KERNEL);
+		dummy_log = kzalloc(sizeof(struct jfs_log), GFP_KERNEL);
 		if (!dummy_log) {
 			up(&jfs_log_sem);
 			return -ENOMEM;
 		}
-		memset(dummy_log, 0, sizeof(struct jfs_log));
 		INIT_LIST_HEAD(&dummy_log->sb_list);
 		init_waitqueue_head(&dummy_log->syncwait);
 		dummy_log->no_integrity = 1;
@@ -1980,7 +1977,7 @@ static inline void lbmRedrive(struct lbuf *bp)
 	log_redrive_list = bp;
 	spin_unlock_irqrestore(&log_redrive_lock, flags);
 
-	wake_up(&jfs_IO_thread_wait);
+	wake_up_process(jfsIOthread);
 }
 
 
@@ -2347,13 +2344,7 @@ int jfsIOWait(void *arg)
 {
 	struct lbuf *bp;
 
-	daemonize("jfsIO");
-
-	complete(&jfsIOwait);
-
 	do {
-		DECLARE_WAITQUEUE(wq, current);
-
 		spin_lock_irq(&log_redrive_lock);
 		while ((bp = log_redrive_list) != 0) {
 			log_redrive_list = bp->l_redrive_next;
@@ -2362,21 +2353,19 @@ int jfsIOWait(void *arg)
 			lbmStartIO(bp);
 			spin_lock_irq(&log_redrive_lock);
 		}
+		spin_unlock_irq(&log_redrive_lock);
+
 		if (freezing(current)) {
-			spin_unlock_irq(&log_redrive_lock);
 			refrigerator();
 		} else {
-			add_wait_queue(&jfs_IO_thread_wait, &wq);
 			set_current_state(TASK_INTERRUPTIBLE);
-			spin_unlock_irq(&log_redrive_lock);
 			schedule();
 			current->state = TASK_RUNNING;
-			remove_wait_queue(&jfs_IO_thread_wait, &wq);
 		}
-	} while (!jfs_stop_threads);
+	} while (!kthread_should_stop());
 
 	jfs_info("jfsIOWait being killed!");
-	complete_and_exit(&jfsIOwait, 0);
+	return 0;
 }
 
 /*
diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
index e4978b5b65ee..8c6909b80014 100644
--- a/fs/jfs/jfs_logmgr.h
+++ b/fs/jfs/jfs_logmgr.h
@@ -389,7 +389,7 @@ struct jfs_log {
 	int eor;		/* 4: eor of last record in eol page */
 	struct lbuf *bp;	/* 4: current log page buffer */
 
-	struct semaphore loglock;	/* 4: log write serialization lock */
+	struct mutex loglock;	/* 4: log write serialization lock */
 
 	/* syncpt */
 	int nextsync;		/* 4: bytes to write before next syncpt */
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 8a53981f9f27..5fbaeaadccd3 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -104,10 +104,9 @@ static inline int insert_metapage(struct page *page, struct metapage *mp)
 	if (PagePrivate(page))
 		a = mp_anchor(page);
 	else {
-		a = kmalloc(sizeof(struct meta_anchor), GFP_NOFS);
+		a = kzalloc(sizeof(struct meta_anchor), GFP_NOFS);
 		if (!a)
 			return -ENOMEM;
-		memset(a, 0, sizeof(struct meta_anchor));
 		set_page_private(page, (unsigned long)a);
 		SetPagePrivate(page);
 		kmap(page);
diff --git a/fs/jfs/jfs_superblock.h b/fs/jfs/jfs_superblock.h
index fcf781bf31cb..682cf1a68a18 100644
--- a/fs/jfs/jfs_superblock.h
+++ b/fs/jfs/jfs_superblock.h
@@ -113,12 +113,9 @@ extern int jfs_mount(struct super_block *);
 extern int jfs_mount_rw(struct super_block *, int);
 extern int jfs_umount(struct super_block *);
 extern int jfs_umount_rw(struct super_block *);
-
-extern int jfs_stop_threads;
-extern struct completion jfsIOwait;
-extern wait_queue_head_t jfs_IO_thread_wait;
-extern wait_queue_head_t jfs_commit_thread_wait;
-extern wait_queue_head_t jfs_sync_thread_wait;
 extern int jfs_extendfs(struct super_block *, s64, int);
 
+extern struct task_struct *jfsIOthread;
+extern struct task_struct *jfsSyncThread;
+
 #endif /*_H_JFS_SUPERBLOCK */
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index 2ddb6b892bcf..ac3d66948e8c 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -49,6 +49,7 @@
 #include <linux/suspend.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/kthread.h>
 #include "jfs_incore.h"
 #include "jfs_inode.h"
 #include "jfs_filsys.h"
@@ -121,8 +122,7 @@ static DEFINE_SPINLOCK(jfsTxnLock);
 #define LAZY_LOCK(flags)	spin_lock_irqsave(&TxAnchor.LazyLock, flags)
 #define LAZY_UNLOCK(flags) spin_unlock_irqrestore(&TxAnchor.LazyLock, flags)
 
-DECLARE_WAIT_QUEUE_HEAD(jfs_sync_thread_wait);
-DECLARE_WAIT_QUEUE_HEAD(jfs_commit_thread_wait);
+static DECLARE_WAIT_QUEUE_HEAD(jfs_commit_thread_wait);
 static int jfs_commit_thread_waking;
 
 /*
@@ -207,7 +207,7 @@ static lid_t txLockAlloc(void)
 	if ((++TxAnchor.tlocksInUse > TxLockHWM) && (jfs_tlocks_low == 0)) {
 		jfs_info("txLockAlloc tlocks low");
 		jfs_tlocks_low = 1;
-		wake_up(&jfs_sync_thread_wait);
+		wake_up_process(jfsSyncThread);
 	}
 
 	return lid;
@@ -2743,10 +2743,6 @@ int jfs_lazycommit(void *arg)
 	unsigned long flags;
 	struct jfs_sb_info *sbi;
 
-	daemonize("jfsCommit");
-
-	complete(&jfsIOwait);
-
 	do {
 		LAZY_LOCK(flags);
 		jfs_commit_thread_waking = 0;	/* OK to wake another thread */
@@ -2806,13 +2802,13 @@ int jfs_lazycommit(void *arg)
 			current->state = TASK_RUNNING;
 			remove_wait_queue(&jfs_commit_thread_wait, &wq);
 		}
-	} while (!jfs_stop_threads);
+	} while (!kthread_should_stop());
 
 	if (!list_empty(&TxAnchor.unlock_queue))
 		jfs_err("jfs_lazycommit being killed w/pending transactions!");
 	else
 		jfs_info("jfs_lazycommit being killed\n");
-	complete_and_exit(&jfsIOwait, 0);
+	return 0;
 }
 
 void txLazyUnlock(struct tblock * tblk)
@@ -2876,10 +2872,10 @@ restart:
 		 */
 		TXN_UNLOCK();
 		tid = txBegin(ip->i_sb, COMMIT_INODE | COMMIT_FORCE);
-		down(&jfs_ip->commit_sem);
+		mutex_lock(&jfs_ip->commit_mutex);
 		txCommit(tid, 1, &ip, 0);
 		txEnd(tid);
-		up(&jfs_ip->commit_sem);
+		mutex_unlock(&jfs_ip->commit_mutex);
 		/*
 		 * Just to be safe.  I don't know how
 		 * long we can run without blocking
@@ -2932,10 +2928,6 @@ int jfs_sync(void *arg)
 	int rc;
 	tid_t tid;
 
-	daemonize("jfsSync");
-
-	complete(&jfsIOwait);
-
 	do {
 		/*
 		 * write each inode on the anonymous inode list
@@ -2952,7 +2944,7 @@ int jfs_sync(void *arg)
 				 * Inode is being freed
 				 */
 				list_del_init(&jfs_ip->anon_inode_list);
-			} else if (! down_trylock(&jfs_ip->commit_sem)) {
+			} else if (! !mutex_trylock(&jfs_ip->commit_mutex)) {
 				/*
 				 * inode will be removed from anonymous list
 				 * when it is committed
@@ -2961,7 +2953,7 @@ int jfs_sync(void *arg)
 				tid = txBegin(ip->i_sb, COMMIT_INODE);
 				rc = txCommit(tid, 1, &ip, 0);
 				txEnd(tid);
-				up(&jfs_ip->commit_sem);
+				mutex_unlock(&jfs_ip->commit_mutex);
 
 				iput(ip);
 				/*
@@ -2971,7 +2963,7 @@ int jfs_sync(void *arg)
 				cond_resched();
 				TXN_LOCK();
 			} else {
-				/* We can't get the commit semaphore.  It may
+				/* We can't get the commit mutex.  It may
 				 * be held by a thread waiting for tlock's
 				 * so let's not block here.  Save it to
 				 * put back on the anon_list.
@@ -2996,19 +2988,15 @@ int jfs_sync(void *arg)
 			TXN_UNLOCK();
 			refrigerator();
 		} else {
-			DECLARE_WAITQUEUE(wq, current);
-
-			add_wait_queue(&jfs_sync_thread_wait, &wq);
 			set_current_state(TASK_INTERRUPTIBLE);
 			TXN_UNLOCK();
 			schedule();
 			current->state = TASK_RUNNING;
-			remove_wait_queue(&jfs_sync_thread_wait, &wq);
 		}
-	} while (!jfs_stop_threads);
+	} while (!kthread_should_stop());
 
 	jfs_info("jfs_sync being killed");
-	complete_and_exit(&jfsIOwait, 0);
+	return 0;
 }
 
 #if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_DEBUG)
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 4abbe8604302..309cee575f7d 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -104,8 +104,8 @@ static int jfs_create(struct inode *dip, struct dentry *dentry, int mode,
 
 	tid = txBegin(dip->i_sb, 0);
 
-	down(&JFS_IP(dip)->commit_sem);
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(dip)->commit_mutex);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	rc = jfs_init_acl(tid, ip, dip);
 	if (rc)
@@ -165,8 +165,8 @@ static int jfs_create(struct inode *dip, struct dentry *dentry, int mode,
 
       out3:
 	txEnd(tid);
-	up(&JFS_IP(dip)->commit_sem);
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(dip)->commit_mutex);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 	if (rc) {
 		free_ea_wmap(ip);
 		ip->i_nlink = 0;
@@ -238,8 +238,8 @@ static int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
 
 	tid = txBegin(dip->i_sb, 0);
 
-	down(&JFS_IP(dip)->commit_sem);
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(dip)->commit_mutex);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	rc = jfs_init_acl(tid, ip, dip);
 	if (rc)
@@ -300,8 +300,8 @@ static int jfs_mkdir(struct inode *dip, struct dentry *dentry, int mode)
 
       out3:
 	txEnd(tid);
-	up(&JFS_IP(dip)->commit_sem);
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(dip)->commit_mutex);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 	if (rc) {
 		free_ea_wmap(ip);
 		ip->i_nlink = 0;
@@ -365,8 +365,8 @@ static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
 
 	tid = txBegin(dip->i_sb, 0);
 
-	down(&JFS_IP(dip)->commit_sem);
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(dip)->commit_mutex);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	iplist[0] = dip;
 	iplist[1] = ip;
@@ -384,8 +384,8 @@ static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
 		if (rc == -EIO)
 			txAbort(tid, 1);
 		txEnd(tid);
-		up(&JFS_IP(dip)->commit_sem);
-		up(&JFS_IP(ip)->commit_sem);
+		mutex_unlock(&JFS_IP(dip)->commit_mutex);
+		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 
 		goto out2;
 	}
@@ -422,8 +422,8 @@ static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
 
 	txEnd(tid);
 
-	up(&JFS_IP(dip)->commit_sem);
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(dip)->commit_mutex);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 
 	/*
 	 * Truncating the directory index table is not guaranteed.  It
@@ -488,8 +488,8 @@ static int jfs_unlink(struct inode *dip, struct dentry *dentry)
 
 	tid = txBegin(dip->i_sb, 0);
 
-	down(&JFS_IP(dip)->commit_sem);
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(dip)->commit_mutex);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	iplist[0] = dip;
 	iplist[1] = ip;
@@ -503,8 +503,8 @@ static int jfs_unlink(struct inode *dip, struct dentry *dentry)
 		if (rc == -EIO)
 			txAbort(tid, 1);	/* Marks FS Dirty */
 		txEnd(tid);
-		up(&JFS_IP(dip)->commit_sem);
-		up(&JFS_IP(ip)->commit_sem);
+		mutex_unlock(&JFS_IP(dip)->commit_mutex);
+		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 		IWRITE_UNLOCK(ip);
 		goto out1;
 	}
@@ -527,8 +527,8 @@ static int jfs_unlink(struct inode *dip, struct dentry *dentry)
 		if ((new_size = commitZeroLink(tid, ip)) < 0) {
 			txAbort(tid, 1);	/* Marks FS Dirty */
 			txEnd(tid);
-			up(&JFS_IP(dip)->commit_sem);
-			up(&JFS_IP(ip)->commit_sem);
+			mutex_unlock(&JFS_IP(dip)->commit_mutex);
+			mutex_unlock(&JFS_IP(ip)->commit_mutex);
 			IWRITE_UNLOCK(ip);
 			rc = new_size;
 			goto out1;
@@ -556,13 +556,13 @@ static int jfs_unlink(struct inode *dip, struct dentry *dentry)
 
 	txEnd(tid);
 
-	up(&JFS_IP(dip)->commit_sem);
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(dip)->commit_mutex);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 
 
 	while (new_size && (rc == 0)) {
 		tid = txBegin(dip->i_sb, 0);
-		down(&JFS_IP(ip)->commit_sem);
+		mutex_lock(&JFS_IP(ip)->commit_mutex);
 		new_size = xtTruncate_pmap(tid, ip, new_size);
 		if (new_size < 0) {
 			txAbort(tid, 1);	/* Marks FS Dirty */
@@ -570,7 +570,7 @@ static int jfs_unlink(struct inode *dip, struct dentry *dentry)
 		} else
 			rc = txCommit(tid, 2, &iplist[0], COMMIT_SYNC);
 		txEnd(tid);
-		up(&JFS_IP(ip)->commit_sem);
+		mutex_unlock(&JFS_IP(ip)->commit_mutex);
 	}
 
 	if (ip->i_nlink == 0)
@@ -805,8 +805,8 @@ static int jfs_link(struct dentry *old_dentry,
 
 	tid = txBegin(ip->i_sb, 0);
 
-	down(&JFS_IP(dir)->commit_sem);
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(dir)->commit_mutex);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	/*
 	 * scan parent directory for entry/freespace
@@ -847,8 +847,8 @@ static int jfs_link(struct dentry *old_dentry,
       out:
 	txEnd(tid);
 
-	up(&JFS_IP(dir)->commit_sem);
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(dir)->commit_mutex);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 
 	jfs_info("jfs_link: rc:%d", rc);
 	return rc;
@@ -916,8 +916,8 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
 
 	tid = txBegin(dip->i_sb, 0);
 
-	down(&JFS_IP(dip)->commit_sem);
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(dip)->commit_mutex);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	rc = jfs_init_security(tid, ip, dip);
 	if (rc)
@@ -1037,8 +1037,8 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
 
       out3:
 	txEnd(tid);
-	up(&JFS_IP(dip)->commit_sem);
-	up(&JFS_IP(ip)->commit_sem);
+	mutex_unlock(&JFS_IP(dip)->commit_mutex);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
 	if (rc) {
 		free_ea_wmap(ip);
 		ip->i_nlink = 0;
@@ -1141,13 +1141,13 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	 */
 	tid = txBegin(new_dir->i_sb, 0);
 
-	down(&JFS_IP(new_dir)->commit_sem);
-	down(&JFS_IP(old_ip)->commit_sem);
+	mutex_lock(&JFS_IP(new_dir)->commit_mutex);
+	mutex_lock(&JFS_IP(old_ip)->commit_mutex);
 	if (old_dir != new_dir)
-		down(&JFS_IP(old_dir)->commit_sem);
+		mutex_lock(&JFS_IP(old_dir)->commit_mutex);
 
 	if (new_ip) {
-		down(&JFS_IP(new_ip)->commit_sem);
+		mutex_lock(&JFS_IP(new_ip)->commit_mutex);
 		/*
 		 * Change existing directory entry to new inode number
 		 */
@@ -1160,10 +1160,10 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		if (S_ISDIR(new_ip->i_mode)) {
 			new_ip->i_nlink--;
 			if (new_ip->i_nlink) {
-				up(&JFS_IP(new_dir)->commit_sem);
-				up(&JFS_IP(old_ip)->commit_sem);
+				mutex_unlock(&JFS_IP(new_dir)->commit_mutex);
+				mutex_unlock(&JFS_IP(old_ip)->commit_mutex);
 				if (old_dir != new_dir)
-					up(&JFS_IP(old_dir)->commit_sem);
+					mutex_unlock(&JFS_IP(old_dir)->commit_mutex);
 				if (!S_ISDIR(old_ip->i_mode) && new_ip)
 					IWRITE_UNLOCK(new_ip);
 				jfs_error(new_ip->i_sb,
@@ -1282,16 +1282,16 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
       out4:
 	txEnd(tid);
 
-	up(&JFS_IP(new_dir)->commit_sem);
-	up(&JFS_IP(old_ip)->commit_sem);
+	mutex_unlock(&JFS_IP(new_dir)->commit_mutex);
+	mutex_unlock(&JFS_IP(old_ip)->commit_mutex);
 	if (old_dir != new_dir)
-		up(&JFS_IP(old_dir)->commit_sem);
+		mutex_unlock(&JFS_IP(old_dir)->commit_mutex);
 	if (new_ip)
-		up(&JFS_IP(new_ip)->commit_sem);
+		mutex_unlock(&JFS_IP(new_ip)->commit_mutex);
 
 	while (new_size && (rc == 0)) {
 		tid = txBegin(new_ip->i_sb, 0);
-		down(&JFS_IP(new_ip)->commit_sem);
+		mutex_lock(&JFS_IP(new_ip)->commit_mutex);
 		new_size = xtTruncate_pmap(tid, new_ip, new_size);
 		if (new_size < 0) {
 			txAbort(tid, 1);
@@ -1299,7 +1299,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		} else
 			rc = txCommit(tid, 1, &new_ip, COMMIT_SYNC);
 		txEnd(tid);
-		up(&JFS_IP(new_ip)->commit_sem);
+		mutex_unlock(&JFS_IP(new_ip)->commit_mutex);
 	}
 	if (new_ip && (new_ip->i_nlink == 0))
 		set_cflag(COMMIT_Nolink, new_ip);
@@ -1361,8 +1361,8 @@ static int jfs_mknod(struct inode *dir, struct dentry *dentry,
 
 	tid = txBegin(dir->i_sb, 0);
 
-	down(&JFS_IP(dir)->commit_sem);
-	down(&JFS_IP(ip)->commit_sem);
+	mutex_lock(&JFS_IP(dir)->commit_mutex);
+	mutex_lock(&JFS_IP(ip)->commit_mutex);
 
 	rc = jfs_init_acl(tid, ip, dir);
 	if (rc)
@@ -1407,8 +1407,8 @@ static int jfs_mknod(struct inode *dir, struct dentry *dentry,
 
       out3:
 	txEnd(tid);
-	up(&JFS_IP(ip)->commit_sem);
-	up(&JFS_IP(dir)->commit_sem);
+	mutex_unlock(&JFS_IP(ip)->commit_mutex);
+	mutex_unlock(&JFS_IP(dir)->commit_mutex);
 	if (rc) {
 		free_ea_wmap(ip);
 		ip->i_nlink = 0;
@@ -1523,6 +1523,7 @@ struct file_operations jfs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= jfs_readdir,
 	.fsync		= jfs_fsync,
+	.ioctl		= jfs_ioctl,
 };
 
 static int jfs_ci_hash(struct dentry *dir, struct qstr *this)
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 8d31f1336431..18f69e6aa719 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -25,6 +25,7 @@
 #include <linux/vfs.h>
 #include <linux/mount.h>
 #include <linux/moduleparam.h>
+#include <linux/kthread.h>
 #include <linux/posix_acl.h>
 #include <asm/uaccess.h>
 #include <linux/seq_file.h>
@@ -54,11 +55,9 @@ static int commit_threads = 0;
 module_param(commit_threads, int, 0);
 MODULE_PARM_DESC(commit_threads, "Number of commit threads");
 
-int jfs_stop_threads;
-static pid_t jfsIOthread;
-static pid_t jfsCommitThread[MAX_COMMIT_THREADS];
-static pid_t jfsSyncThread;
-DECLARE_COMPLETION(jfsIOwait);
+static struct task_struct *jfsCommitThread[MAX_COMMIT_THREADS];
+struct task_struct *jfsIOthread;
+struct task_struct *jfsSyncThread;
 
 #ifdef CONFIG_JFS_DEBUG
 int jfsloglevel = JFS_LOGLEVEL_WARN;
@@ -195,7 +194,7 @@ static void jfs_put_super(struct super_block *sb)
 enum {
 	Opt_integrity, Opt_nointegrity, Opt_iocharset, Opt_resize,
 	Opt_resize_nosize, Opt_errors, Opt_ignore, Opt_err, Opt_quota,
-	Opt_usrquota, Opt_grpquota
+	Opt_usrquota, Opt_grpquota, Opt_uid, Opt_gid, Opt_umask
 };
 
 static match_table_t tokens = {
@@ -209,6 +208,9 @@ static match_table_t tokens = {
 	{Opt_ignore, "quota"},
 	{Opt_usrquota, "usrquota"},
 	{Opt_grpquota, "grpquota"},
+	{Opt_uid, "uid=%u"},
+	{Opt_gid, "gid=%u"},
+	{Opt_umask, "umask=%u"},
 	{Opt_err, NULL}
 };
 
@@ -313,7 +315,29 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 			       "JFS: quota operations not supported\n");
 			break;
 #endif
-
+		case Opt_uid:
+		{
+			char *uid = args[0].from;
+			sbi->uid = simple_strtoul(uid, &uid, 0);
+			break;
+		}
+		case Opt_gid:
+		{
+			char *gid = args[0].from;
+			sbi->gid = simple_strtoul(gid, &gid, 0);
+			break;
+		}
+		case Opt_umask:
+		{
+			char *umask = args[0].from;
+			sbi->umask = simple_strtoul(umask, &umask, 8);
+			if (sbi->umask & ~0777) {
+				printk(KERN_ERR
+				       "JFS: Invalid value of umask\n");
+				goto cleanup;
+			}
+			break;
+		}
 		default:
 			printk("jfs: Unrecognized mount option \"%s\" "
 					" or missing value\n", p);
@@ -396,12 +420,12 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!new_valid_dev(sb->s_bdev->bd_dev))
 		return -EOVERFLOW;
 
-	sbi = kmalloc(sizeof (struct jfs_sb_info), GFP_KERNEL);
+	sbi = kzalloc(sizeof (struct jfs_sb_info), GFP_KERNEL);
 	if (!sbi)
 		return -ENOSPC;
-	memset(sbi, 0, sizeof (struct jfs_sb_info));
 	sb->s_fs_info = sbi;
 	sbi->sb = sb;
+	sbi->uid = sbi->gid = sbi->umask = -1;
 
 	/* initialize the mount flag and determine the default error handler */
 	flag = JFS_ERR_REMOUNT_RO;
@@ -564,10 +588,14 @@ static int jfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 {
 	struct jfs_sb_info *sbi = JFS_SBI(vfs->mnt_sb);
 
+	if (sbi->uid != -1)
+		seq_printf(seq, ",uid=%d", sbi->uid);
+	if (sbi->gid != -1)
+		seq_printf(seq, ",gid=%d", sbi->gid);
+	if (sbi->umask != -1)
+		seq_printf(seq, ",umask=%03o", sbi->umask);
 	if (sbi->flag & JFS_NOINTEGRITY)
 		seq_puts(seq, ",nointegrity");
-	else
-		seq_puts(seq, ",integrity");
 
 #if defined(CONFIG_QUOTA)
 	if (sbi->flag & JFS_USRQUOTA)
@@ -617,7 +645,7 @@ static void init_once(void *foo, kmem_cache_t * cachep, unsigned long flags)
 		memset(jfs_ip, 0, sizeof(struct jfs_inode_info));
 		INIT_LIST_HEAD(&jfs_ip->anon_inode_list);
 		init_rwsem(&jfs_ip->rdwrlock);
-		init_MUTEX(&jfs_ip->commit_sem);
+		mutex_init(&jfs_ip->commit_mutex);
 		init_rwsem(&jfs_ip->xattr_sem);
 		spin_lock_init(&jfs_ip->ag_lock);
 		jfs_ip->active_ag = -1;
@@ -661,12 +689,12 @@ static int __init init_jfs_fs(void)
 	/*
 	 * I/O completion thread (endio)
 	 */
-	jfsIOthread = kernel_thread(jfsIOWait, NULL, CLONE_KERNEL);
-	if (jfsIOthread < 0) {
-		jfs_err("init_jfs_fs: fork failed w/rc = %d", jfsIOthread);
+	jfsIOthread = kthread_run(jfsIOWait, NULL, "jfsIO");
+	if (IS_ERR(jfsIOthread)) {
+		rc = PTR_ERR(jfsIOthread);
+		jfs_err("init_jfs_fs: fork failed w/rc = %d", rc);
 		goto end_txmngr;
 	}
-	wait_for_completion(&jfsIOwait);	/* Wait until thread starts */
 
 	if (commit_threads < 1)
 		commit_threads = num_online_cpus();
@@ -674,24 +702,21 @@ static int __init init_jfs_fs(void)
 		commit_threads = MAX_COMMIT_THREADS;
 
 	for (i = 0; i < commit_threads; i++) {
-		jfsCommitThread[i] = kernel_thread(jfs_lazycommit, NULL,
-						   CLONE_KERNEL);
-		if (jfsCommitThread[i] < 0) {
-			jfs_err("init_jfs_fs: fork failed w/rc = %d",
-				jfsCommitThread[i]);
+		jfsCommitThread[i] = kthread_run(jfs_lazycommit, NULL, "jfsCommit");
+		if (IS_ERR(jfsCommitThread[i])) {
+			rc = PTR_ERR(jfsCommitThread[i]);
+			jfs_err("init_jfs_fs: fork failed w/rc = %d", rc);
 			commit_threads = i;
 			goto kill_committask;
 		}
-		/* Wait until thread starts */
-		wait_for_completion(&jfsIOwait);
 	}
 
-	jfsSyncThread = kernel_thread(jfs_sync, NULL, CLONE_KERNEL);
-	if (jfsSyncThread < 0) {
-		jfs_err("init_jfs_fs: fork failed w/rc = %d", jfsSyncThread);
+	jfsSyncThread = kthread_run(jfs_sync, NULL, "jfsSync");
+	if (IS_ERR(jfsSyncThread)) {
+		rc = PTR_ERR(jfsSyncThread);
+		jfs_err("init_jfs_fs: fork failed w/rc = %d", rc);
 		goto kill_committask;
 	}
-	wait_for_completion(&jfsIOwait);	/* Wait until thread starts */
 
 #ifdef PROC_FS_JFS
 	jfs_proc_init();
@@ -700,13 +725,9 @@ static int __init init_jfs_fs(void)
 	return register_filesystem(&jfs_fs_type);
 
 kill_committask:
-	jfs_stop_threads = 1;
-	wake_up_all(&jfs_commit_thread_wait);
 	for (i = 0; i < commit_threads; i++)
-		wait_for_completion(&jfsIOwait);
-
-	wake_up(&jfs_IO_thread_wait);
-	wait_for_completion(&jfsIOwait);	/* Wait for thread exit */
+		kthread_stop(jfsCommitThread[i]);
+	kthread_stop(jfsIOthread);
 end_txmngr:
 	txExit();
 free_metapage:
@@ -722,16 +743,13 @@ static void __exit exit_jfs_fs(void)
 
 	jfs_info("exit_jfs_fs called");
 
-	jfs_stop_threads = 1;
 	txExit();
 	metapage_exit();
-	wake_up(&jfs_IO_thread_wait);
-	wait_for_completion(&jfsIOwait);	/* Wait until IO thread exits */
-	wake_up_all(&jfs_commit_thread_wait);
+
+	kthread_stop(jfsIOthread);
 	for (i = 0; i < commit_threads; i++)
-		wait_for_completion(&jfsIOwait);
-	wake_up(&jfs_sync_thread_wait);
-	wait_for_completion(&jfsIOwait);	/* Wait until Sync thread exits */
+		kthread_stop(jfsCommitThread[i]);
+	kthread_stop(jfsSyncThread);
 #ifdef PROC_FS_JFS
 	jfs_proc_clean();
 #endif
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index f23048f9471f..9bc5b7c055ce 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -934,13 +934,13 @@ int jfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 	}
 
 	tid = txBegin(inode->i_sb, 0);
-	down(&ji->commit_sem);
+	mutex_lock(&ji->commit_mutex);
 	rc = __jfs_setxattr(tid, dentry->d_inode, name, value, value_len,
 			    flags);
 	if (!rc)
 		rc = txCommit(tid, 1, &inode, 0);
 	txEnd(tid);
-	up(&ji->commit_sem);
+	mutex_unlock(&ji->commit_mutex);
 
 	return rc;
 }
@@ -1093,12 +1093,12 @@ int jfs_removexattr(struct dentry *dentry, const char *name)
 		return rc;
 
 	tid = txBegin(inode->i_sb, 0);
-	down(&ji->commit_sem);
+	mutex_lock(&ji->commit_mutex);
 	rc = __jfs_setxattr(tid, dentry->d_inode, name, NULL, 0, XATTR_REPLACE);
 	if (!rc)
 		rc = txCommit(tid, 1, &inode, 0);
 	txEnd(tid);
-	up(&ji->commit_sem);
+	mutex_unlock(&ji->commit_mutex);
 
 	return rc;
 }
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 220058d8616d..970b6a6aa337 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -662,12 +662,18 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
 	 * reclaimed while we're stuck in the unlock call. */
 	fl->fl_u.nfs_fl.flags &= ~NFS_LCK_GRANTED;
 
+	/*
+	 * Note: the server is supposed to either grant us the unlock
+	 * request, or to deny it with NLM_LCK_DENIED_GRACE_PERIOD. In either
+	 * case, we want to unlock.
+	 */
+	do_vfs_lock(fl);
+
 	if (req->a_flags & RPC_TASK_ASYNC) {
 		status = nlmclnt_async_call(req, NLMPROC_UNLOCK,
 					&nlmclnt_unlock_ops);
 		/* Hrmf... Do the unlock early since locks_remove_posix()
 		 * really expects us to free the lock synchronously */
-		do_vfs_lock(fl);
 		if (status < 0) {
 			nlmclnt_release_lockargs(req);
 			kfree(req);
@@ -680,7 +686,6 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
 	if (status < 0)
 		return status;
 
-	do_vfs_lock(fl);
 	if (resp->status == NLM_LCK_GRANTED)
 		return 0;
 
diff --git a/fs/namei.c b/fs/namei.c
index e28de846c591..8dc2b038d5d9 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2224,13 +2224,17 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de
  * and other special files.  --ADM
  */
 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
-			   int newdfd, const char __user *newname)
+			   int newdfd, const char __user *newname,
+			   int flags)
 {
 	struct dentry *new_dentry;
 	struct nameidata nd, old_nd;
 	int error;
 	char * to;
 
+	if (flags != 0)
+		return -EINVAL;
+
 	to = getname(newname);
 	if (IS_ERR(to))
 		return PTR_ERR(to);
@@ -2263,7 +2267,7 @@ exit:
 
 asmlinkage long sys_link(const char __user *oldname, const char __user *newname)
 {
-	return sys_linkat(AT_FDCWD, oldname, AT_FDCWD, newname);
+	return sys_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
 }
 
 /*
@@ -2609,13 +2613,15 @@ void page_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
 	}
 }
 
-int page_symlink(struct inode *inode, const char *symname, int len)
+int __page_symlink(struct inode *inode, const char *symname, int len,
+		gfp_t gfp_mask)
 {
 	struct address_space *mapping = inode->i_mapping;
-	struct page *page = grab_cache_page(mapping, 0);
+	struct page *page;
 	int err = -ENOMEM;
 	char *kaddr;
 
+	page = find_or_create_page(mapping, 0, gfp_mask);
 	if (!page)
 		goto fail;
 	err = mapping->a_ops->prepare_write(NULL, page, 0, len-1);
@@ -2650,6 +2656,12 @@ fail:
 	return err;
 }
 
+int page_symlink(struct inode *inode, const char *symname, int len)
+{
+	return __page_symlink(inode, symname, len,
+			mapping_gfp_mask(inode->i_mapping));
+}
+
 struct inode_operations page_symlink_inode_operations = {
 	.readlink	= generic_readlink,
 	.follow_link	= page_follow_link_light,
@@ -2668,6 +2680,7 @@ EXPORT_SYMBOL(lookup_one_len);
 EXPORT_SYMBOL(page_follow_link_light);
 EXPORT_SYMBOL(page_put_link);
 EXPORT_SYMBOL(page_readlink);
+EXPORT_SYMBOL(__page_symlink);
 EXPORT_SYMBOL(page_symlink);
 EXPORT_SYMBOL(page_symlink_inode_operations);
 EXPORT_SYMBOL(path_lookup);
diff --git a/fs/namespace.c b/fs/namespace.c
index 058a44865beb..39c81a8d6316 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1338,7 +1338,7 @@ struct namespace *dup_namespace(struct task_struct *tsk, struct fs_struct *fs)
 
 	new_ns = kmalloc(sizeof(struct namespace), GFP_KERNEL);
 	if (!new_ns)
-		goto out;
+		return NULL;
 
 	atomic_set(&new_ns->count, 1);
 	INIT_LIST_HEAD(&new_ns->list);
@@ -1352,7 +1352,7 @@ struct namespace *dup_namespace(struct task_struct *tsk, struct fs_struct *fs)
 	if (!new_ns->root) {
 		up_write(&namespace_sem);
 		kfree(new_ns);
-		goto out;
+		return NULL;
 	}
 	spin_lock(&vfsmount_lock);
 	list_add_tail(&new_ns->list, &new_ns->root->mnt_list);
@@ -1393,7 +1393,6 @@ struct namespace *dup_namespace(struct task_struct *tsk, struct fs_struct *fs)
 	if (altrootmnt)
 		mntput(altrootmnt);
 
-out:
 	return new_ns;
 }
 
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 04ab2fc360e7..4e9b3a1b36c5 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -57,6 +57,7 @@
 #define NFSDBG_FACILITY		NFSDBG_VFS
 #define MAX_DIRECTIO_SIZE	(4096UL << PAGE_SHIFT)
 
+static void nfs_free_user_pages(struct page **pages, int npages, int do_dirty);
 static kmem_cache_t *nfs_direct_cachep;
 
 /*
@@ -107,6 +108,15 @@ nfs_get_user_pages(int rw, unsigned long user_addr, size_t size,
 					page_count, (rw == READ), 0,
 					*pages, NULL);
 		up_read(&current->mm->mmap_sem);
+		/*
+		 * If we got fewer pages than expected from get_user_pages(),
+		 * the user buffer runs off the end of a mapping; return EFAULT.
+		 */
+		if (result >= 0 && result < page_count) {
+			nfs_free_user_pages(*pages, result, 0);
+			*pages = NULL;
+			result = -EFAULT;
+		}
 	}
 	return result;
 }
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 984ca3454d04..f8c0066e02e1 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1430,7 +1430,7 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
 	if (status == 0)
 		status = nfs4_do_fsinfo(server, fhandle, info);
 out:
-	return status;
+	return nfs4_map_errors(status);
 }
 
 static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr)
diff --git a/fs/nfsctl.c b/fs/nfsctl.c
index 0d4cf9486068..1c72c7f85ddc 100644
--- a/fs/nfsctl.c
+++ b/fs/nfsctl.c
@@ -98,10 +98,8 @@ asmlinkage sys_nfsservctl(int cmd, struct nfsctl_arg __user *arg, void __user *r
 	if (copy_from_user(&version, &arg->ca_version, sizeof(int)))
 		return -EFAULT;
 
-	if (version != NFSCTL_VERSION) {
-		printk(KERN_WARNING "nfsd: incompatible version in syscall.\n");
+	if (version != NFSCTL_VERSION)
 		return -EINVAL;
-	}
 
 	if (cmd < 0 || cmd >= sizeof(map)/sizeof(map[0]) || !map[cmd].name)
 		return -EINVAL;
diff --git a/fs/nls/Kconfig b/fs/nls/Kconfig
index 0ab8f00bdbb2..976ecccd6f56 100644
--- a/fs/nls/Kconfig
+++ b/fs/nls/Kconfig
@@ -491,7 +491,7 @@ config NLS_KOI8_U
 	  (koi8-u) and Belarusian (koi8-ru) character sets.
 
 config NLS_UTF8
-	tristate "NLS UTF8"
+	tristate "NLS UTF-8"
 	depends on NLS
 	help
 	  If you want to display filenames with native language characters
diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index fd741cea5705..636593bf4d17 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -74,6 +74,7 @@ struct mlog_attribute {
 #define define_mask(_name) {			\
 	.attr = {				\
 		.name = #_name,			\
+		.owner = THIS_MODULE,		\
 		.mode = S_IRUGO | S_IWUSR,	\
 	},					\
 	.mask = ML_##_name,			\
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index e8c56a3d9c64..2cadc3009c83 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -256,7 +256,7 @@ extern struct mlog_bits mlog_and_bits, mlog_not_bits;
 	}								\
 } while (0)
 
-#if (BITS_PER_LONG == 32) || defined(CONFIG_X86_64)
+#if (BITS_PER_LONG == 32) || defined(CONFIG_X86_64) || (defined(CONFIG_UML_X86) && defined(CONFIG_64BIT))
 #define MLFi64 "lld"
 #define MLFu64 "llu"
 #define MLFx64 "llx"
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index cf7828f23361..e1fceb8aa32d 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -756,7 +756,7 @@ static int __init init_o2nm(void)
 	if (!ocfs2_table_header) {
 		printk(KERN_ERR "nodemanager: unable to register sysctl\n");
 		ret = -ENOMEM; /* or something. */
-		goto out;
+		goto out_o2net;
 	}
 
 	ret = o2net_register_hb_callbacks();
@@ -780,6 +780,8 @@ out_callbacks:
 	o2net_unregister_hb_callbacks();
 out_sysctl:
 	unregister_sysctl_table(ocfs2_table_header);
+out_o2net:
+	o2net_exit();
 out:
 	return ret;
 }
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index d22d4cf08db1..0f60cc0d3985 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1318,7 +1318,7 @@ static void o2net_start_connect(void *arg)
 {
 	struct o2net_node *nn = arg;
 	struct o2net_sock_container *sc = NULL;
-	struct o2nm_node *node = NULL;
+	struct o2nm_node *node = NULL, *mynode = NULL;
 	struct socket *sock = NULL;
 	struct sockaddr_in myaddr = {0, }, remoteaddr = {0, };
 	int ret = 0;
@@ -1334,6 +1334,12 @@ static void o2net_start_connect(void *arg)
 		goto out;
 	}
 
+	mynode = o2nm_get_node_by_num(o2nm_this_node());
+	if (mynode == NULL) {
+		ret = 0;
+		goto out;
+	}
+
 	spin_lock(&nn->nn_lock);
 	/* see if we already have one pending or have given up */
 	if (nn->nn_sc || nn->nn_persistent_error)
@@ -1361,12 +1367,14 @@ static void o2net_start_connect(void *arg)
 	sock->sk->sk_allocation = GFP_ATOMIC;
 
 	myaddr.sin_family = AF_INET;
+	myaddr.sin_addr.s_addr = (__force u32)mynode->nd_ipv4_address;
 	myaddr.sin_port = (__force u16)htons(0); /* any port */
 
 	ret = sock->ops->bind(sock, (struct sockaddr *)&myaddr,
 			      sizeof(myaddr));
 	if (ret) {
-		mlog(0, "bind failed: %d\n", ret);
+		mlog(ML_ERROR, "bind failed with %d at address %u.%u.%u.%u\n",
+		     ret, NIPQUAD(mynode->nd_ipv4_address));
 		goto out;
 	}
 
@@ -1407,6 +1415,8 @@ out:
 		sc_put(sc);
 	if (node)
 		o2nm_node_put(node);
+	if (mynode)
+		o2nm_node_put(mynode);
 
 	return;
 }
diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h
index a6f4585501c8..616ff2b8434a 100644
--- a/fs/ocfs2/cluster/tcp.h
+++ b/fs/ocfs2/cluster/tcp.h
@@ -85,13 +85,10 @@ enum {
 	O2NET_DRIVER_READY,
 };
 
-int o2net_init_tcp_sock(struct inode *inode);
 int o2net_send_message(u32 msg_type, u32 key, void *data, u32 len,
 		       u8 target_node, int *status);
 int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *vec,
 			   size_t veclen, u8 target_node, int *status);
-int o2net_broadcast_message(u32 msg_type, u32 key, void *data, u32 len,
-			    struct inode *group);
 
 int o2net_register_handler(u32 msg_type, u32 key, u32 max_len,
 			   o2net_msg_handler_func *func, void *data,
@@ -107,7 +104,5 @@ void o2net_disconnect_node(struct o2nm_node *node);
 
 int o2net_init(void);
 void o2net_exit(void);
-int o2net_proc_init(struct proc_dir_entry *parent);
-void o2net_proc_exit(struct proc_dir_entry *parent);
 
 #endif /* O2CLUSTER_TCP_H */
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index 23ceaa7127b4..9c772583744a 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -37,9 +37,7 @@
 #define DLM_THREAD_SHUFFLE_INTERVAL    5     // flush everything every 5 passes
 #define DLM_THREAD_MS                  200   // flush at least every 200 ms
 
-#define DLM_HASH_BITS     7
-#define DLM_HASH_SIZE     (1 << DLM_HASH_BITS)
-#define DLM_HASH_MASK     (DLM_HASH_SIZE - 1)
+#define DLM_HASH_BUCKETS     (PAGE_SIZE / sizeof(struct hlist_head))
 
 enum dlm_ast_type {
 	DLM_AST = 0,
@@ -87,7 +85,7 @@ enum dlm_ctxt_state {
 struct dlm_ctxt
 {
 	struct list_head list;
-	struct list_head *resources;
+	struct hlist_head *lockres_hash;
 	struct list_head dirty_list;
 	struct list_head purge_list;
 	struct list_head pending_asts;
@@ -217,7 +215,7 @@ struct dlm_lock_resource
 {
 	/* WARNING: Please see the comment in dlm_init_lockres before
 	 * adding fields here. */
-	struct list_head list;
+	struct hlist_node hash_node;
 	struct kref      refs;
 
 	/* please keep these next 3 in this order
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index f339fe27975a..54f61b76ab51 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -117,8 +117,8 @@ EXPORT_SYMBOL_GPL(dlm_print_one_lock);
 void dlm_dump_lock_resources(struct dlm_ctxt *dlm)
 {
 	struct dlm_lock_resource *res;
-	struct list_head *iter;
-	struct list_head *bucket;
+	struct hlist_node *iter;
+	struct hlist_head *bucket;
 	int i;
 
 	mlog(ML_NOTICE, "struct dlm_ctxt: %s, node=%u, key=%u\n",
@@ -129,12 +129,10 @@ void dlm_dump_lock_resources(struct dlm_ctxt *dlm)
 	}
 
 	spin_lock(&dlm->spinlock);
-	for (i=0; i<DLM_HASH_SIZE; i++) {
-		bucket = &(dlm->resources[i]);
-		list_for_each(iter, bucket) {
-			res = list_entry(iter, struct dlm_lock_resource, list);
+	for (i=0; i<DLM_HASH_BUCKETS; i++) {
+		bucket = &(dlm->lockres_hash[i]);
+		hlist_for_each_entry(res, iter, bucket, hash_node)
 			dlm_print_one_lock_resource(res);
-		}
 	}
 	spin_unlock(&dlm->spinlock);
 }
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 6ee30837389c..8f3a9e3106fd 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -77,26 +77,26 @@ static void dlm_unregister_domain_handlers(struct dlm_ctxt *dlm);
 
 void __dlm_unhash_lockres(struct dlm_lock_resource *lockres)
 {
-	list_del_init(&lockres->list);
+	hlist_del_init(&lockres->hash_node);
 	dlm_lockres_put(lockres);
 }
 
 void __dlm_insert_lockres(struct dlm_ctxt *dlm,
 		       struct dlm_lock_resource *res)
 {
-	struct list_head *bucket;
+	struct hlist_head *bucket;
 	struct qstr *q;
 
 	assert_spin_locked(&dlm->spinlock);
 
 	q = &res->lockname;
 	q->hash = full_name_hash(q->name, q->len);
-	bucket = &(dlm->resources[q->hash & DLM_HASH_MASK]);
+	bucket = &(dlm->lockres_hash[q->hash % DLM_HASH_BUCKETS]);
 
 	/* get a reference for our hashtable */
 	dlm_lockres_get(res);
 
-	list_add_tail(&res->list, bucket);
+	hlist_add_head(&res->hash_node, bucket);
 }
 
 struct dlm_lock_resource * __dlm_lookup_lockres(struct dlm_ctxt *dlm,
@@ -104,9 +104,9 @@ struct dlm_lock_resource * __dlm_lookup_lockres(struct dlm_ctxt *dlm,
 					 unsigned int len)
 {
 	unsigned int hash;
-	struct list_head *iter;
+	struct hlist_node *iter;
 	struct dlm_lock_resource *tmpres=NULL;
-	struct list_head *bucket;
+	struct hlist_head *bucket;
 
 	mlog_entry("%.*s\n", len, name);
 
@@ -114,11 +114,11 @@ struct dlm_lock_resource * __dlm_lookup_lockres(struct dlm_ctxt *dlm,
 
 	hash = full_name_hash(name, len);
 
-	bucket = &(dlm->resources[hash & DLM_HASH_MASK]);
+	bucket = &(dlm->lockres_hash[hash % DLM_HASH_BUCKETS]);
 
 	/* check for pre-existing lock */
-	list_for_each(iter, bucket) {
-		tmpres = list_entry(iter, struct dlm_lock_resource, list);
+	hlist_for_each(iter, bucket) {
+		tmpres = hlist_entry(iter, struct dlm_lock_resource, hash_node);
 		if (tmpres->lockname.len == len &&
 		    memcmp(tmpres->lockname.name, name, len) == 0) {
 			dlm_lockres_get(tmpres);
@@ -193,8 +193,8 @@ static int dlm_wait_on_domain_helper(const char *domain)
 
 static void dlm_free_ctxt_mem(struct dlm_ctxt *dlm)
 {
-	if (dlm->resources)
-		free_page((unsigned long) dlm->resources);
+	if (dlm->lockres_hash)
+		free_page((unsigned long) dlm->lockres_hash);
 
 	if (dlm->name)
 		kfree(dlm->name);
@@ -303,10 +303,10 @@ static void dlm_migrate_all_locks(struct dlm_ctxt *dlm)
 	mlog(0, "Migrating locks from domain %s\n", dlm->name);
 restart:
 	spin_lock(&dlm->spinlock);
-	for (i=0; i<DLM_HASH_SIZE; i++) {
-		while (!list_empty(&dlm->resources[i])) {
-			res = list_entry(dlm->resources[i].next,
-				     struct dlm_lock_resource, list);
+	for (i = 0; i < DLM_HASH_BUCKETS; i++) {
+		while (!hlist_empty(&dlm->lockres_hash[i])) {
+			res = hlist_entry(dlm->lockres_hash[i].first,
+					  struct dlm_lock_resource, hash_node);
 			/* need reference when manually grabbing lockres */
 			dlm_lockres_get(res);
 			/* this should unhash the lockres
@@ -1191,18 +1191,17 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain,
 		goto leave;
 	}
 
-	dlm->resources = (struct list_head *) __get_free_page(GFP_KERNEL);
-	if (!dlm->resources) {
+	dlm->lockres_hash = (struct hlist_head *) __get_free_page(GFP_KERNEL);
+	if (!dlm->lockres_hash) {
 		mlog_errno(-ENOMEM);
 		kfree(dlm->name);
 		kfree(dlm);
 		dlm = NULL;
 		goto leave;
 	}
-	memset(dlm->resources, 0, PAGE_SIZE);
 
-	for (i=0; i<DLM_HASH_SIZE; i++)
-		INIT_LIST_HEAD(&dlm->resources[i]);
+	for (i=0; i<DLM_HASH_BUCKETS; i++)
+		INIT_HLIST_HEAD(&dlm->lockres_hash[i]);
 
 	strcpy(dlm->name, domain);
 	dlm->key = key;
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 2e2e95e69499..847dd3cc4cf5 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -564,7 +564,7 @@ static void dlm_lockres_release(struct kref *kref)
 
 	/* By the time we're ready to blow this guy away, we shouldn't
 	 * be on any lists. */
-	BUG_ON(!list_empty(&res->list));
+	BUG_ON(!hlist_unhashed(&res->hash_node));
 	BUG_ON(!list_empty(&res->granted));
 	BUG_ON(!list_empty(&res->converting));
 	BUG_ON(!list_empty(&res->blocked));
@@ -605,7 +605,7 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm,
 
 	init_waitqueue_head(&res->wq);
 	spin_lock_init(&res->spinlock);
-	INIT_LIST_HEAD(&res->list);
+	INIT_HLIST_NODE(&res->hash_node);
 	INIT_LIST_HEAD(&res->granted);
 	INIT_LIST_HEAD(&res->converting);
 	INIT_LIST_HEAD(&res->blocked);
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index ed76bda1a534..1e232000f3f7 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -1693,7 +1693,10 @@ static void dlm_finish_local_lockres_recovery(struct dlm_ctxt *dlm,
 					      u8 dead_node, u8 new_master)
 {
 	int i;
-	struct list_head *iter, *iter2, *bucket;
+	struct list_head *iter, *iter2;
+	struct hlist_node *hash_iter;
+	struct hlist_head *bucket;
+
 	struct dlm_lock_resource *res;
 
 	mlog_entry_void();
@@ -1717,10 +1720,9 @@ static void dlm_finish_local_lockres_recovery(struct dlm_ctxt *dlm,
 	 * for now we need to run the whole hash, clear
 	 * the RECOVERING state and set the owner
 	 * if necessary */
-	for (i=0; i<DLM_HASH_SIZE; i++) {
-		bucket = &(dlm->resources[i]);
-		list_for_each(iter, bucket) {
-			res = list_entry (iter, struct dlm_lock_resource, list);
+	for (i = 0; i < DLM_HASH_BUCKETS; i++) {
+		bucket = &(dlm->lockres_hash[i]);
+		hlist_for_each_entry(res, hash_iter, bucket, hash_node) {
 			if (res->state & DLM_LOCK_RES_RECOVERING) {
 				if (res->owner == dead_node) {
 					mlog(0, "(this=%u) res %.*s owner=%u "
@@ -1852,10 +1854,10 @@ static void dlm_free_dead_locks(struct dlm_ctxt *dlm,
 
 static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node)
 {
-	struct list_head *iter;
+	struct hlist_node *iter;
 	struct dlm_lock_resource *res;
 	int i;
-	struct list_head *bucket;
+	struct hlist_head *bucket;
 	struct dlm_lock *lock;
 
 
@@ -1876,10 +1878,9 @@ static void dlm_do_local_recovery_cleanup(struct dlm_ctxt *dlm, u8 dead_node)
 	 *    can be kicked again to see if any ASTs or BASTs
 	 *    need to be fired as a result.
 	 */
-	for (i=0; i<DLM_HASH_SIZE; i++) {
-		bucket = &(dlm->resources[i]);
-		list_for_each(iter, bucket) {
-			res = list_entry (iter, struct dlm_lock_resource, list);
+	for (i = 0; i < DLM_HASH_BUCKETS; i++) {
+		bucket = &(dlm->lockres_hash[i]);
+		hlist_for_each_entry(res, iter, bucket, hash_node) {
  			/* always prune any $RECOVERY entries for dead nodes,
  			 * otherwise hangs can occur during later recovery */
 			if (dlm_is_recovery_lock(res->lockname.name,
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index b6ba292e9544..e6f207eebab4 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -181,6 +181,12 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
 			ret = -EBADR;
 			if (rec_end > OCFS2_I(inode)->ip_clusters) {
 				mlog_errno(ret);
+				ocfs2_error(inode->i_sb,
+					    "Extent %d at e_blkno %"MLFu64" of inode %"MLFu64" goes past ip_clusters of %u\n",
+					    i,
+					    le64_to_cpu(rec->e_blkno),
+					    OCFS2_I(inode)->ip_blkno,
+					    OCFS2_I(inode)->ip_clusters);
 				goto out_free;
 			}
 
@@ -226,6 +232,12 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
 			ret = -EBADR;
 			if (blkno) {
 				mlog_errno(ret);
+				ocfs2_error(inode->i_sb,
+					    "Multiple extents for (cpos = %u, clusters = %u) on inode %"MLFu64"; e_blkno %"MLFu64" and rec %d at e_blkno %"MLFu64"\n",
+					    cpos, clusters,
+					    OCFS2_I(inode)->ip_blkno,
+					    blkno, i,
+					    le64_to_cpu(rec->e_blkno));
 				goto out_free;
 			}
 
@@ -238,6 +250,10 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
 		 */
 		ret = -EBADR;
 		if (!blkno) {
+			ocfs2_error(inode->i_sb,
+				    "No record found for (cpos = %u, clusters = %u) on inode %"MLFu64"\n",
+				    cpos, clusters,
+				    OCFS2_I(inode)->ip_blkno);
 			mlog_errno(ret);
 			goto out_free;
 		}
@@ -266,6 +282,20 @@ static int ocfs2_extent_map_find_leaf(struct inode *inode,
 
 	for (i = 0; i < le16_to_cpu(el->l_next_free_rec); i++) {
 		rec = &el->l_recs[i];
+
+		if ((le32_to_cpu(rec->e_cpos) + le32_to_cpu(rec->e_clusters)) >
+		    OCFS2_I(inode)->ip_clusters) {
+			ret = -EBADR;
+			mlog_errno(ret);
+			ocfs2_error(inode->i_sb,
+				    "Extent %d at e_blkno %"MLFu64" of inode %"MLFu64" goes past ip_clusters of %u\n",
+				    i,
+				    le64_to_cpu(rec->e_blkno),
+				    OCFS2_I(inode)->ip_blkno,
+				    OCFS2_I(inode)->ip_clusters);
+			return ret;
+		}
+
 		ret = ocfs2_extent_map_insert(inode, rec,
 					      le16_to_cpu(el->l_tree_depth));
 		if (ret) {
@@ -526,6 +556,10 @@ static int ocfs2_extent_map_insert(struct inode *inode,
 		    OCFS2_I(inode)->ip_map.em_clusters) {
 			ret = -EBADR;
 			mlog_errno(ret);
+			ocfs2_error(inode->i_sb,
+				    "Zero e_clusters on non-tail extent record at e_blkno %"MLFu64" on inode %"MLFu64"\n",
+				    le64_to_cpu(rec->e_blkno),
+				    OCFS2_I(inode)->ip_blkno);
 			return ret;
 		}
 
@@ -588,12 +622,12 @@ static int ocfs2_extent_map_insert(struct inode *inode,
  * Existing record in the extent map:
  *
  *	cpos = 10, len = 10
- * 	|---------|
+ *	|---------|
  *
  * New Record:
  *
  *	cpos = 10, len = 20
- * 	|------------------|
+ *	|------------------|
  *
  * The passed record is the new on-disk record.  The new_clusters value
  * is how many clusters were added to the file.  If the append is a
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 1715bc90e705..8a4048b55fdc 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -933,9 +933,6 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
 	struct file *filp = iocb->ki_filp;
 	struct inode *inode = filp->f_dentry->d_inode;
 	loff_t newsize, saved_pos;
-#ifdef OCFS2_ORACORE_WORKAROUNDS
-	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
-#endif
 
 	mlog_entry("(0x%p, 0x%p, %u, '%.*s')\n", filp, buf,
 		   (unsigned int)count,
@@ -951,14 +948,6 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
 		return -EIO;
 	}
 
-#ifdef OCFS2_ORACORE_WORKAROUNDS
-	/* ugh, work around some applications which open everything O_DIRECT +
-	 * O_APPEND and really don't mean to use O_DIRECT. */
-	if (osb->s_mount_opt & OCFS2_MOUNT_COMPAT_OCFS &&
-	    (filp->f_flags & O_APPEND) && (filp->f_flags & O_DIRECT)) 
-		filp->f_flags &= ~O_DIRECT;
-#endif
-
 	mutex_lock(&inode->i_mutex);
 	/* to match setattr's i_mutex -> i_alloc_sem -> rw_lock ordering */
 	if (filp->f_flags & O_DIRECT) {
@@ -1079,27 +1068,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
 	/* communicate with ocfs2_dio_end_io */
 	ocfs2_iocb_set_rw_locked(iocb);
 
-#ifdef OCFS2_ORACORE_WORKAROUNDS
-	if (osb->s_mount_opt & OCFS2_MOUNT_COMPAT_OCFS &&
-	    filp->f_flags & O_DIRECT) {
-		unsigned int saved_flags = filp->f_flags;
-		int sector_size = 1 << osb->s_sectsize_bits;
-
-		if ((saved_pos & (sector_size - 1)) ||
-		    (count & (sector_size - 1)) ||
-		    ((unsigned long)buf & (sector_size - 1))) {
-			filp->f_flags |= O_SYNC;
-			filp->f_flags &= ~O_DIRECT;
-		}
-
-		ret = generic_file_aio_write_nolock(iocb, &local_iov, 1,
-						    &iocb->ki_pos);
-
-		filp->f_flags = saved_flags;
-	} else
-#endif
-		ret = generic_file_aio_write_nolock(iocb, &local_iov, 1,
-						    &iocb->ki_pos);
+	ret = generic_file_aio_write_nolock(iocb, &local_iov, 1, &iocb->ki_pos);
 
 	/* buffered aio wouldn't have proper lock coverage today */
 	BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT));
@@ -1140,9 +1109,6 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
 	int ret = 0, rw_level = -1, have_alloc_sem = 0;
 	struct file *filp = iocb->ki_filp;
 	struct inode *inode = filp->f_dentry->d_inode;
-#ifdef OCFS2_ORACORE_WORKAROUNDS
-	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
-#endif
 
 	mlog_entry("(0x%p, 0x%p, %u, '%.*s')\n", filp, buf,
 		   (unsigned int)count,
@@ -1155,21 +1121,6 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
 		goto bail;
 	}
 
-#ifdef OCFS2_ORACORE_WORKAROUNDS
-	if (osb->s_mount_opt & OCFS2_MOUNT_COMPAT_OCFS) {
-		if (filp->f_flags & O_DIRECT) {
-			int sector_size = 1 << osb->s_sectsize_bits;
-
-			if ((pos & (sector_size - 1)) ||
-			    (count & (sector_size - 1)) ||
-			    ((unsigned long)buf & (sector_size - 1)) ||
-			    (i_size_read(inode) & (sector_size -1))) {
-				filp->f_flags &= ~O_DIRECT;
-			}
-		}
-	}
-#endif
-
 	/* 
 	 * buffered reads protect themselves in ->readpage().  O_DIRECT reads
 	 * need locks to protect pending reads from racing with truncate.
diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c
index 0bbd22f46c80..cbfd45a97a63 100644
--- a/fs/ocfs2/heartbeat.c
+++ b/fs/ocfs2/heartbeat.c
@@ -67,6 +67,7 @@ void ocfs2_init_node_maps(struct ocfs2_super *osb)
 	ocfs2_node_map_init(&osb->mounted_map);
 	ocfs2_node_map_init(&osb->recovery_map);
 	ocfs2_node_map_init(&osb->umount_map);
+	ocfs2_node_map_init(&osb->osb_recovering_orphan_dirs);
 }
 
 static void ocfs2_do_node_down(int node_num,
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 8122489c5762..315472a5c192 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -41,6 +41,7 @@
 #include "dlmglue.h"
 #include "extent_map.h"
 #include "file.h"
+#include "heartbeat.h"
 #include "inode.h"
 #include "journal.h"
 #include "namei.h"
@@ -544,6 +545,42 @@ bail:
 	return status;
 }
 
+/* 
+ * Serialize with orphan dir recovery. If the process doing
+ * recovery on this orphan dir does an iget() with the dir
+ * i_mutex held, we'll deadlock here. Instead we detect this
+ * and exit early - recovery will wipe this inode for us.
+ */
+static int ocfs2_check_orphan_recovery_state(struct ocfs2_super *osb,
+					     int slot)
+{
+	int ret = 0;
+
+	spin_lock(&osb->osb_lock);
+	if (ocfs2_node_map_test_bit(osb, &osb->osb_recovering_orphan_dirs, slot)) {
+		mlog(0, "Recovery is happening on orphan dir %d, will skip "
+		     "this inode\n", slot);
+		ret = -EDEADLK;
+		goto out;
+	}
+	/* This signals to the orphan recovery process that it should
+	 * wait for us to handle the wipe. */
+	osb->osb_orphan_wipes[slot]++;
+out:
+	spin_unlock(&osb->osb_lock);
+	return ret;
+}
+
+static void ocfs2_signal_wipe_completion(struct ocfs2_super *osb,
+					 int slot)
+{
+	spin_lock(&osb->osb_lock);
+	osb->osb_orphan_wipes[slot]--;
+	spin_unlock(&osb->osb_lock);
+
+	wake_up(&osb->osb_wipe_event);
+}
+
 static int ocfs2_wipe_inode(struct inode *inode,
 			    struct buffer_head *di_bh)
 {
@@ -555,6 +592,11 @@ static int ocfs2_wipe_inode(struct inode *inode,
 	/* We've already voted on this so it should be readonly - no
 	 * spinlock needed. */
 	orphaned_slot = OCFS2_I(inode)->ip_orphaned_slot;
+
+	status = ocfs2_check_orphan_recovery_state(osb, orphaned_slot);
+	if (status)
+		return status;
+
 	orphan_dir_inode = ocfs2_get_system_file_inode(osb,
 						       ORPHAN_DIR_SYSTEM_INODE,
 						       orphaned_slot);
@@ -597,6 +639,7 @@ bail_unlock_dir:
 	brelse(orphan_dir_bh);
 bail:
 	iput(orphan_dir_inode);
+	ocfs2_signal_wipe_completion(osb, orphaned_slot);
 
 	return status;
 }
@@ -822,7 +865,8 @@ void ocfs2_delete_inode(struct inode *inode)
 
 	status = ocfs2_wipe_inode(inode, di_bh);
 	if (status < 0) {
-		mlog_errno(status);
+		if (status != -EDEADLK)
+			mlog_errno(status);
 		goto bail_unlock_inode;
 	}
 
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index d329c9df90ae..4be801f4559b 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -1408,21 +1408,17 @@ bail:
 	return status;
 }
 
-static int ocfs2_recover_orphans(struct ocfs2_super *osb,
-				 int slot)
+static int ocfs2_queue_orphans(struct ocfs2_super *osb,
+			       int slot,
+			       struct inode **head)
 {
-	int status = 0;
-	int have_disk_lock = 0;
-	struct inode *inode = NULL;
-	struct inode *iter;
+	int status;
 	struct inode *orphan_dir_inode = NULL;
+	struct inode *iter;
 	unsigned long offset, blk, local;
 	struct buffer_head *bh = NULL;
 	struct ocfs2_dir_entry *de;
 	struct super_block *sb = osb->sb;
-	struct ocfs2_inode_info *oi;
-
-	mlog(0, "Recover inodes from orphan dir in slot %d\n", slot);
 
 	orphan_dir_inode = ocfs2_get_system_file_inode(osb,
 						       ORPHAN_DIR_SYSTEM_INODE,
@@ -1430,17 +1426,15 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
 	if  (!orphan_dir_inode) {
 		status = -ENOENT;
 		mlog_errno(status);
-		goto out;
-	}
+		return status;
+	}	
 
 	mutex_lock(&orphan_dir_inode->i_mutex);
 	status = ocfs2_meta_lock(orphan_dir_inode, NULL, NULL, 0);
 	if (status < 0) {
-		mutex_unlock(&orphan_dir_inode->i_mutex);
 		mlog_errno(status);
 		goto out;
 	}
-	have_disk_lock = 1;
 
 	offset = 0;
 	iter = NULL;
@@ -1451,11 +1445,10 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
 		if (!bh)
 			status = -EINVAL;
 		if (status < 0) {
-			mutex_unlock(&orphan_dir_inode->i_mutex);
 			if (bh)
 				brelse(bh);
 			mlog_errno(status);
-			goto out;
+			goto out_unlock;
 		}
 
 		local = 0;
@@ -1465,11 +1458,10 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
 
 			if (!ocfs2_check_dir_entry(orphan_dir_inode,
 						  de, bh, local)) {
-				mutex_unlock(&orphan_dir_inode->i_mutex);
 				status = -EINVAL;
 				mlog_errno(status);
 				brelse(bh);
-				goto out;
+				goto out_unlock;
 			}
 
 			local += le16_to_cpu(de->rec_len);
@@ -1504,18 +1496,95 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
 
 			mlog(0, "queue orphan %"MLFu64"\n",
 			     OCFS2_I(iter)->ip_blkno);
-			OCFS2_I(iter)->ip_next_orphan = inode;
-			inode = iter;
+			/* No locking is required for the next_orphan
+			 * queue as there is only ever a single
+			 * process doing orphan recovery. */
+			OCFS2_I(iter)->ip_next_orphan = *head;
+			*head = iter;
 		}
 		brelse(bh);
 	}
-	mutex_unlock(&orphan_dir_inode->i_mutex);
 
+out_unlock:
 	ocfs2_meta_unlock(orphan_dir_inode, 0);
-	have_disk_lock = 0;
-
+out:
+	mutex_unlock(&orphan_dir_inode->i_mutex);
 	iput(orphan_dir_inode);
-	orphan_dir_inode = NULL;
+	return status;
+}
+
+static int ocfs2_orphan_recovery_can_continue(struct ocfs2_super *osb,
+					      int slot)
+{
+	int ret;
+
+	spin_lock(&osb->osb_lock);
+	ret = !osb->osb_orphan_wipes[slot];
+	spin_unlock(&osb->osb_lock);
+	return ret;
+}
+
+static void ocfs2_mark_recovering_orphan_dir(struct ocfs2_super *osb,
+					     int slot)
+{
+	spin_lock(&osb->osb_lock);
+	/* Mark ourselves such that new processes in delete_inode()
+	 * know to quit early. */
+	ocfs2_node_map_set_bit(osb, &osb->osb_recovering_orphan_dirs, slot);
+	while (osb->osb_orphan_wipes[slot]) {
+		/* If any processes are already in the middle of an
+		 * orphan wipe on this dir, then we need to wait for
+		 * them. */
+		spin_unlock(&osb->osb_lock);
+		wait_event_interruptible(osb->osb_wipe_event,
+					 ocfs2_orphan_recovery_can_continue(osb, slot));
+		spin_lock(&osb->osb_lock);
+	}
+	spin_unlock(&osb->osb_lock);
+}
+
+static void ocfs2_clear_recovering_orphan_dir(struct ocfs2_super *osb,
+					      int slot)
+{
+	ocfs2_node_map_clear_bit(osb, &osb->osb_recovering_orphan_dirs, slot);
+}
+
+/*
+ * Orphan recovery. Each mounted node has it's own orphan dir which we
+ * must run during recovery. Our strategy here is to build a list of
+ * the inodes in the orphan dir and iget/iput them. The VFS does
+ * (most) of the rest of the work.
+ *
+ * Orphan recovery can happen at any time, not just mount so we have a
+ * couple of extra considerations.
+ *
+ * - We grab as many inodes as we can under the orphan dir lock -
+ *   doing iget() outside the orphan dir risks getting a reference on
+ *   an invalid inode.
+ * - We must be sure not to deadlock with other processes on the
+ *   system wanting to run delete_inode(). This can happen when they go
+ *   to lock the orphan dir and the orphan recovery process attempts to
+ *   iget() inside the orphan dir lock. This can be avoided by
+ *   advertising our state to ocfs2_delete_inode().
+ */
+static int ocfs2_recover_orphans(struct ocfs2_super *osb,
+				 int slot)
+{
+	int ret = 0;
+	struct inode *inode = NULL;
+	struct inode *iter;
+	struct ocfs2_inode_info *oi;
+
+	mlog(0, "Recover inodes from orphan dir in slot %d\n", slot);
+
+	ocfs2_mark_recovering_orphan_dir(osb, slot);
+	ret = ocfs2_queue_orphans(osb, slot, &inode);
+	ocfs2_clear_recovering_orphan_dir(osb, slot);
+
+	/* Error here should be noted, but we want to continue with as
+	 * many queued inodes as we've got. */
+	if (ret)
+		mlog_errno(ret);
 
 	while (inode) {
 		oi = OCFS2_I(inode);
@@ -1541,14 +1610,7 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
 		inode = iter;
 	}
 
-out:
-	if (have_disk_lock)
-		ocfs2_meta_unlock(orphan_dir_inode, 0);
-
-	if (orphan_dir_inode)
-		iput(orphan_dir_inode);
-
-	return status;
+	return ret;
 }
 
 static int ocfs2_wait_on_mount(struct ocfs2_super *osb)
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 8d8e4779df92..e89de9b6e491 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -174,9 +174,6 @@ enum ocfs2_mount_options
 	OCFS2_MOUNT_NOINTR  = 1 << 2,   /* Don't catch signals */
 	OCFS2_MOUNT_ERRORS_PANIC = 1 << 3, /* Panic on errors */
 	OCFS2_MOUNT_DATA_WRITEBACK = 1 << 4, /* No data ordering */
-#ifdef OCFS2_ORACORE_WORKAROUNDS
-	OCFS2_MOUNT_COMPAT_OCFS = 1 << 30, /* ocfs1 compatibility mode */
-#endif
 };
 
 #define OCFS2_OSB_SOFT_RO	0x0001
@@ -290,6 +287,10 @@ struct ocfs2_super
 	struct inode			*osb_tl_inode;
 	struct buffer_head		*osb_tl_bh;
 	struct work_struct		osb_truncate_log_wq;
+
+	struct ocfs2_node_map		osb_recovering_orphan_dirs;
+	unsigned int			*osb_orphan_wipes;
+	wait_queue_head_t		osb_wipe_event;
 };
 
 #define OCFS2_SB(sb)	    ((struct ocfs2_super *)(sb)->s_fs_info)
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index dfb8a5bedfc8..c5b1ac547c15 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -138,7 +138,6 @@
 
 /* Journal limits (in bytes) */
 #define OCFS2_MIN_JOURNAL_SIZE		(4 * 1024 * 1024)
-#define OCFS2_MAX_JOURNAL_SIZE		(500 * 1024 * 1024)
 
 struct ocfs2_system_inode_info {
 	char	*si_name;
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 046824b6b625..09e1c57a86a0 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -959,7 +959,7 @@ static int ocfs2_initialize_mem_caches(void)
 	ocfs2_lock_cache = kmem_cache_create("ocfs2_lock",
 					     sizeof(struct ocfs2_journal_lock),
 					     0,
-					     SLAB_NO_REAP|SLAB_HWCACHE_ALIGN,
+					     SLAB_HWCACHE_ALIGN,
 					     NULL, NULL);
 	if (!ocfs2_lock_cache)
 		return -ENOMEM;
@@ -1325,6 +1325,16 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	}
 	mlog(ML_NOTICE, "max_slots for this device: %u\n", osb->max_slots);
 
+	init_waitqueue_head(&osb->osb_wipe_event);
+	osb->osb_orphan_wipes = kcalloc(osb->max_slots,
+					sizeof(*osb->osb_orphan_wipes),
+					GFP_KERNEL);
+	if (!osb->osb_orphan_wipes) {
+		status = -ENOMEM;
+		mlog_errno(status);
+		goto bail;
+	}
+
 	osb->s_feature_compat =
 		le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat);
 	osb->s_feature_ro_compat =
@@ -1638,6 +1648,7 @@ static void ocfs2_delete_osb(struct ocfs2_super *osb)
 	if (osb->slot_info)
 		ocfs2_free_slot_info(osb->slot_info);
 
+	kfree(osb->osb_orphan_wipes);
 	/* FIXME
 	 * This belongs in journal shutdown, but because we have to
 	 * allocate osb->journal at the start of ocfs2_initalize_osb(),
diff --git a/fs/partitions/ibm.c b/fs/partitions/ibm.c
index 78010ad60e47..1e4a93835fed 100644
--- a/fs/partitions/ibm.c
+++ b/fs/partitions/ibm.c
@@ -52,6 +52,7 @@ int
 ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
 {
 	int blocksize, offset, size;
+	loff_t i_size;
 	dasd_information_t *info;
 	struct hd_geometry *geo;
 	char type[5] = {0,};
@@ -63,6 +64,13 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
 	unsigned char *data;
 	Sector sect;
 
+	blocksize = bdev_hardsect_size(bdev);
+	if (blocksize <= 0)
+		return 0;
+	i_size = i_size_read(bdev->bd_inode);
+	if (i_size == 0)
+		return 0;
+
 	if ((info = kmalloc(sizeof(dasd_information_t), GFP_KERNEL)) == NULL)
 		goto out_noinfo;
 	if ((geo = kmalloc(sizeof(struct hd_geometry), GFP_KERNEL)) == NULL)
@@ -73,9 +81,6 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
 	if (ioctl_by_bdev(bdev, BIODASDINFO, (unsigned long)info) != 0 ||
 	    ioctl_by_bdev(bdev, HDIO_GETGEO, (unsigned long)geo) != 0)
 		goto out_noioctl;
-	
-	if ((blocksize = bdev_hardsect_size(bdev)) <= 0)
-		goto out_badsect;
 
 	/*
 	 * Get volume label, extract name and type.
@@ -111,7 +116,7 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
 		} else {
 			printk("CMS1/%8s:", name);
 			offset = (info->label_block + 1);
-			size = bdev->bd_inode->i_size >> 9;
+			size = i_size >> 9;
 		}
 		put_partition(state, 1, offset*(blocksize >> 9),
 				 size-offset*(blocksize >> 9));
@@ -168,7 +173,7 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
 		else
 			printk("(nonl)/%8s:", name);
 		offset = (info->label_block + 1);
-		size = (bdev->bd_inode->i_size >> 9);
+		size = i_size >> 9;
 		put_partition(state, 1, offset*(blocksize >> 9),
 				 size-offset*(blocksize >> 9));
 	}
@@ -180,7 +185,6 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
 	return 1;
 	
 out_readerr:
-out_badsect:
 out_noioctl:
 	kfree(label);
 out_nolab:
diff --git a/fs/pipe.c b/fs/pipe.c
index d722579df79a..8aada8e426f4 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -605,7 +605,7 @@ struct file_operations rdwr_fifo_fops = {
 	.fasync		= pipe_rdwr_fasync,
 };
 
-struct file_operations read_pipe_fops = {
+static struct file_operations read_pipe_fops = {
 	.llseek		= no_llseek,
 	.read		= pipe_read,
 	.readv		= pipe_readv,
@@ -617,7 +617,7 @@ struct file_operations read_pipe_fops = {
 	.fasync		= pipe_read_fasync,
 };
 
-struct file_operations write_pipe_fops = {
+static struct file_operations write_pipe_fops = {
 	.llseek		= no_llseek,
 	.read		= bad_pipe_r,
 	.write		= pipe_write,
@@ -629,7 +629,7 @@ struct file_operations write_pipe_fops = {
 	.fasync		= pipe_write_fasync,
 };
 
-struct file_operations rdwr_pipe_fops = {
+static struct file_operations rdwr_pipe_fops = {
 	.llseek		= no_llseek,
 	.read		= pipe_read,
 	.readv		= pipe_readv,
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 0eaad41f4658..91b7c15ab373 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -204,7 +204,6 @@ static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 {
 	pte_t *pte, ptent;
 	spinlock_t *ptl;
-	unsigned long pfn;
 	struct page *page;
 
 	pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
@@ -214,12 +213,12 @@ static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 			continue;
 
 		mss->resident += PAGE_SIZE;
-		pfn = pte_pfn(ptent);
-		if (!pfn_valid(pfn))
+
+		page = vm_normal_page(vma, addr, ptent);
+		if (!page)
 			continue;
 
-		page = pfn_to_page(pfn);
-		if (page_count(page) >= 2) {
+		if (page_mapcount(page) >= 2) {
 			if (pte_dirty(ptent))
 				mss->shared_dirty += PAGE_SIZE;
 			else
@@ -289,7 +288,7 @@ static int show_smap(struct seq_file *m, void *v)
 	struct mem_size_stats mss;
 
 	memset(&mss, 0, sizeof mss);
-	if (vma->vm_mm)
+	if (vma->vm_mm && !is_vm_hugetlb_page(vma))
 		smaps_pgd_range(vma, vma->vm_start, vma->vm_end, &mss);
 	return show_map_internal(m, v, &mss);
 }
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index 3f810acd0bfa..b1ca234068f6 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -87,8 +87,7 @@ static int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize)
 	xpages = 1UL << order;
 	npages = (newsize + PAGE_SIZE - 1) >> PAGE_SHIFT;
 
-	for (loop = 0; loop < npages; loop++)
-		set_page_count(pages + loop, 1);
+	split_page(pages, order);
 
 	/* trim off any pages we don't actually require */
 	for (loop = npages; loop < xpages; loop++)
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index c66bd5e4c05c..14bd2246fb6d 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -27,6 +27,7 @@
 #include <linux/fs.h>
 #include <linux/pagemap.h>
 #include <linux/highmem.h>
+#include <linux/time.h>
 #include <linux/init.h>
 #include <linux/string.h>
 #include <linux/smp_lock.h>
@@ -104,6 +105,7 @@ ramfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 		d_instantiate(dentry, inode);
 		dget(dentry);	/* Extra count - pin the dentry in core */
 		error = 0;
+		dir->i_mtime = dir->i_ctime = CURRENT_TIME;
 	}
 	return error;
 }
@@ -135,6 +137,7 @@ static int ramfs_symlink(struct inode * dir, struct dentry *dentry, const char *
 				inode->i_gid = dir->i_gid;
 			d_instantiate(dentry, inode);
 			dget(dentry);
+			dir->i_mtime = dir->i_ctime = CURRENT_TIME;
 		} else
 			iput(inode);
 	}
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index f3473176c83a..be12879bb179 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -1464,13 +1464,11 @@ static ssize_t reiserfs_file_write(struct file *file,	/* the file we are going t
 		   partially overwritten pages, if needed. And lock the pages,
 		   so that nobody else can access these until we are done.
 		   We get number of actual blocks needed as a result. */
-		blocks_to_allocate =
-		    reiserfs_prepare_file_region_for_write(inode, pos,
-							   num_pages,
-							   write_bytes,
-							   prepared_pages);
-		if (blocks_to_allocate < 0) {
-			res = blocks_to_allocate;
+		res = reiserfs_prepare_file_region_for_write(inode, pos,
+							     num_pages,
+							     write_bytes,
+							     prepared_pages);
+		if (res < 0) {
 			reiserfs_release_claimed_blocks(inode->i_sb,
 							num_pages <<
 							(PAGE_CACHE_SHIFT -
@@ -1478,6 +1476,8 @@ static ssize_t reiserfs_file_write(struct file *file,	/* the file we are going t
 			break;
 		}
 
+		blocks_to_allocate = res;
+
 		/* First we correct our estimate of how many blocks we need */
 		reiserfs_release_claimed_blocks(inode->i_sb,
 						(num_pages <<
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index b33d67bba2fd..d60f6238c66a 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -627,11 +627,6 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 	reiserfs_write_lock(inode->i_sb);
 	version = get_inode_item_key_version(inode);
 
-	if (block < 0) {
-		reiserfs_write_unlock(inode->i_sb);
-		return -EIO;
-	}
-
 	if (!file_capable(inode, block)) {
 		reiserfs_write_unlock(inode->i_sb);
 		return -EFBIG;
@@ -934,12 +929,13 @@ int reiserfs_get_block(struct inode *inode, sector_t block,
 				     //pos_in_item * inode->i_sb->s_blocksize,
 				     TYPE_INDIRECT, 3);	// key type is unimportant
 
+			RFALSE(cpu_key_k_offset(&tmp_key) > cpu_key_k_offset(&key),
+			       "green-805: invalid offset");
 			blocks_needed =
 			    1 +
 			    ((cpu_key_k_offset(&key) -
 			      cpu_key_k_offset(&tmp_key)) >> inode->i_sb->
 			     s_blocksize_bits);
-			RFALSE(blocks_needed < 0, "green-805: invalid offset");
 
 			if (blocks_needed == 1) {
 				un = &unf_single;
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index b7a179560ab4..5a9d2722fa0a 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -2319,8 +2319,7 @@ static int journal_read(struct super_block *p_s_sb)
 		return 1;
 	}
 	jh = (struct reiserfs_journal_header *)(journal->j_header_bh->b_data);
-	if (le32_to_cpu(jh->j_first_unflushed_offset) >= 0 &&
-	    le32_to_cpu(jh->j_first_unflushed_offset) <
+	if (le32_to_cpu(jh->j_first_unflushed_offset) <
 	    SB_ONDISK_JOURNAL_SIZE(p_s_sb)
 	    && le32_to_cpu(jh->j_last_flush_trans_id) > 0) {
 		oldest_start =
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index c8123308e060..284f7852de8b 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -247,7 +247,7 @@ static int linear_search_in_dir_item(struct cpu_key *key,
 		/* mark, that this generation number is used */
 		if (de->de_gen_number_bit_string)
 			set_bit(GET_GENERATION_NUMBER(deh_offset(deh)),
-				(unsigned long *)de->de_gen_number_bit_string);
+				de->de_gen_number_bit_string);
 
 		// calculate pointer to name and namelen
 		de->de_entry_num = i;
@@ -431,7 +431,7 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
 	struct reiserfs_de_head *deh;
 	INITIALIZE_PATH(path);
 	struct reiserfs_dir_entry de;
-	int bit_string[MAX_GENERATION_NUMBER / (sizeof(int) * 8) + 1];
+	DECLARE_BITMAP(bit_string, MAX_GENERATION_NUMBER + 1);
 	int gen_number;
 	char small_buf[32 + DEH_SIZE];	/* 48 bytes now and we avoid kmalloc
 					   if we create file with short name */
@@ -486,7 +486,7 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
 
 	/* find the proper place for the new entry */
 	memset(bit_string, 0, sizeof(bit_string));
-	de.de_gen_number_bit_string = (char *)bit_string;
+	de.de_gen_number_bit_string = bit_string;
 	retval = reiserfs_find_entry(dir, name, namelen, &path, &de);
 	if (retval != NAME_NOT_FOUND) {
 		if (buffer != small_buf)
@@ -508,7 +508,7 @@ static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
 	}
 
 	gen_number =
-	    find_first_zero_bit((unsigned long *)bit_string,
+	    find_first_zero_bit(bit_string,
 				MAX_GENERATION_NUMBER + 1);
 	if (gen_number > MAX_GENERATION_NUMBER) {
 		/* there is no free generation number */
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 49bd219275db..9ee956864445 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -50,6 +50,32 @@ static struct sysfs_dirent * sysfs_new_dirent(struct sysfs_dirent * parent_sd,
 	return sd;
 }
 
+/**
+ *
+ * Return -EEXIST if there is already a sysfs element with the same name for
+ * the same parent.
+ *
+ * called with parent inode's i_mutex held
+ */
+int sysfs_dirent_exist(struct sysfs_dirent *parent_sd,
+			  const unsigned char *new)
+{
+	struct sysfs_dirent * sd;
+
+	list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {
+		if (sd->s_element) {
+			const unsigned char *existing = sysfs_get_name(sd);
+			if (strcmp(existing, new))
+				continue;
+			else
+				return -EEXIST;
+		}
+	}
+
+	return 0;
+}
+
+
 int sysfs_make_dirent(struct sysfs_dirent * parent_sd, struct dentry * dentry,
 			void * element, umode_t mode, int type)
 {
@@ -102,7 +128,11 @@ static int create_dir(struct kobject * k, struct dentry * p,
 	mutex_lock(&p->d_inode->i_mutex);
 	*d = lookup_one_len(n, p, strlen(n));
 	if (!IS_ERR(*d)) {
-		error = sysfs_make_dirent(p->d_fsdata, *d, k, mode, SYSFS_DIR);
+ 		if (sysfs_dirent_exist(p->d_fsdata, n))
+  			error = -EEXIST;
+  		else
+			error = sysfs_make_dirent(p->d_fsdata, *d, k, mode,
+								SYSFS_DIR);
 		if (!error) {
 			error = sysfs_create(*d, mode, init_dir);
 			if (!error) {
@@ -302,6 +332,7 @@ void sysfs_remove_dir(struct kobject * kobj)
 	 * Drop reference from dget() on entrance.
 	 */
 	dput(dentry);
+	kobj->dentry = NULL;
 }
 
 int sysfs_rename_dir(struct kobject * kobj, const char *new_name)
@@ -479,7 +510,3 @@ struct file_operations sysfs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= sysfs_readdir,
 };
-
-EXPORT_SYMBOL_GPL(sysfs_create_dir);
-EXPORT_SYMBOL_GPL(sysfs_remove_dir);
-EXPORT_SYMBOL_GPL(sysfs_rename_dir);
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index d0e3d8495165..5e83e7246788 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -301,9 +301,8 @@ static int check_perm(struct inode * inode, struct file * file)
 	/* No error? Great, allocate a buffer for the file, and store it
 	 * it in file->private_data for easy access.
 	 */
-	buffer = kmalloc(sizeof(struct sysfs_buffer),GFP_KERNEL);
+	buffer = kzalloc(sizeof(struct sysfs_buffer), GFP_KERNEL);
 	if (buffer) {
-		memset(buffer,0,sizeof(struct sysfs_buffer));
 		init_MUTEX(&buffer->sem);
 		buffer->needs_read_fill = 1;
 		buffer->ops = ops;
@@ -362,10 +361,12 @@ int sysfs_add_file(struct dentry * dir, const struct attribute * attr, int type)
 {
 	struct sysfs_dirent * parent_sd = dir->d_fsdata;
 	umode_t mode = (attr->mode & S_IALLUGO) | S_IFREG;
-	int error = 0;
+	int error = -EEXIST;
 
 	mutex_lock(&dir->d_inode->i_mutex);
-	error = sysfs_make_dirent(parent_sd, NULL, (void *) attr, mode, type);
+	if (!sysfs_dirent_exist(parent_sd, attr->name))
+		error = sysfs_make_dirent(parent_sd, NULL, (void *)attr,
+					  mode, type);
 	mutex_unlock(&dir->d_inode->i_mutex);
 
 	return error;
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 689f7bcfaf30..4c29ac41ac3e 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -54,11 +54,10 @@ int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
 
 	if (!sd_iattr) {
 		/* setting attributes for the first time, allocate now */
-		sd_iattr = kmalloc(sizeof(struct iattr), GFP_KERNEL);
+		sd_iattr = kzalloc(sizeof(struct iattr), GFP_KERNEL);
 		if (!sd_iattr)
 			return -ENOMEM;
 		/* assign default attributes */
-		memset(sd_iattr, 0, sizeof(struct iattr));
 		sd_iattr->ia_mode = sd->s_mode;
 		sd_iattr->ia_uid = 0;
 		sd_iattr->ia_gid = 0;
@@ -227,12 +226,16 @@ void sysfs_drop_dentry(struct sysfs_dirent * sd, struct dentry * parent)
 void sysfs_hash_and_remove(struct dentry * dir, const char * name)
 {
 	struct sysfs_dirent * sd;
-	struct sysfs_dirent * parent_sd = dir->d_fsdata;
+	struct sysfs_dirent * parent_sd;
+
+	if (!dir)
+		return;
 
 	if (dir->d_inode == NULL)
 		/* no inode means this hasn't been made visible yet */
 		return;
 
+	parent_sd = dir->d_fsdata;
 	mutex_lock(&dir->d_inode->i_mutex);
 	list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {
 		if (!sd->s_element)
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index e38d6338a20d..d2eac3ceed5f 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -66,6 +66,7 @@ static int sysfs_add_link(struct dentry * parent, const char * name, struct kobj
 	if (!error)
 		return 0;
 
+	kobject_put(target);
 	kfree(sl->link_name);
 exit2:
 	kfree(sl);
@@ -82,12 +83,13 @@ exit1:
 int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name)
 {
 	struct dentry * dentry = kobj->dentry;
-	int error = 0;
+	int error = -EEXIST;
 
 	BUG_ON(!kobj || !kobj->dentry || !name);
 
 	mutex_lock(&dentry->d_inode->i_mutex);
-	error = sysfs_add_link(dentry, name, target);
+	if (!sysfs_dirent_exist(dentry->d_fsdata, name))
+		error = sysfs_add_link(dentry, name, target);
 	mutex_unlock(&dentry->d_inode->i_mutex);
 	return error;
 }
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 3f8953e0e5d0..cf11d5b789d9 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -5,6 +5,7 @@ extern kmem_cache_t *sysfs_dir_cachep;
 extern struct inode * sysfs_new_inode(mode_t mode, struct sysfs_dirent *);
 extern int sysfs_create(struct dentry *, int mode, int (*init)(struct inode *));
 
+extern int sysfs_dirent_exist(struct sysfs_dirent *, const unsigned char *);
 extern int sysfs_make_dirent(struct sysfs_dirent *, struct dentry *, void *,
 				umode_t, int);
 
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 395e582ee542..d04cff2273b6 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1045,10 +1045,14 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
 	}
 
 	inode->i_uid = le32_to_cpu(fe->uid);
-	if ( inode->i_uid == -1 ) inode->i_uid = UDF_SB(inode->i_sb)->s_uid;
+	if (inode->i_uid == -1 || UDF_QUERY_FLAG(inode->i_sb,
+					UDF_FLAG_UID_IGNORE))
+		inode->i_uid = UDF_SB(inode->i_sb)->s_uid;
 
 	inode->i_gid = le32_to_cpu(fe->gid);
-	if ( inode->i_gid == -1 ) inode->i_gid = UDF_SB(inode->i_sb)->s_gid;
+	if (inode->i_gid == -1 || UDF_QUERY_FLAG(inode->i_sb,
+					UDF_FLAG_GID_IGNORE))
+		inode->i_gid = UDF_SB(inode->i_sb)->s_gid;
 
 	inode->i_nlink = le16_to_cpu(fe->fileLinkCount);
 	if (!inode->i_nlink)
@@ -1335,10 +1339,14 @@ udf_update_inode(struct inode *inode, int do_sync)
 		return err;
 	}
 
-	if (inode->i_uid != UDF_SB(inode->i_sb)->s_uid)
+	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_FORGET))
+		fe->uid = cpu_to_le32(-1);
+	else if (inode->i_uid != UDF_SB(inode->i_sb)->s_uid)
 		fe->uid = cpu_to_le32(inode->i_uid);
 
-	if (inode->i_gid != UDF_SB(inode->i_sb)->s_gid)
+	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_FORGET))
+		fe->gid = cpu_to_le32(-1);
+	else if (inode->i_gid != UDF_SB(inode->i_sb)->s_gid)
 		fe->gid = cpu_to_le32(inode->i_gid);
 
 	udfperms =	((inode->i_mode & S_IRWXO)     ) |
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 4a6f49adc609..368d8f81fe54 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -269,7 +269,7 @@ enum {
 	Opt_gid, Opt_uid, Opt_umask, Opt_session, Opt_lastblock,
 	Opt_anchor, Opt_volume, Opt_partition, Opt_fileset,
 	Opt_rootdir, Opt_utf8, Opt_iocharset,
-	Opt_err
+	Opt_err, Opt_uforget, Opt_uignore, Opt_gforget, Opt_gignore
 };
 
 static match_table_t tokens = {
@@ -282,6 +282,10 @@ static match_table_t tokens = {
 	{Opt_adinicb, "adinicb"},
 	{Opt_shortad, "shortad"},
 	{Opt_longad, "longad"},
+	{Opt_uforget, "uid=forget"},
+	{Opt_uignore, "uid=ignore"},
+	{Opt_gforget, "gid=forget"},
+	{Opt_gignore, "gid=ignore"},
 	{Opt_gid, "gid=%u"},
 	{Opt_uid, "uid=%u"},
 	{Opt_umask, "umask=%o"},
@@ -414,6 +418,18 @@ udf_parse_options(char *options, struct udf_options *uopt)
 				uopt->flags |= (1 << UDF_FLAG_NLS_MAP);
 				break;
 #endif
+			case Opt_uignore:
+				uopt->flags |= (1 << UDF_FLAG_UID_IGNORE);
+				break;
+			case Opt_uforget:
+				uopt->flags |= (1 << UDF_FLAG_UID_FORGET);
+				break;
+			case Opt_gignore:
+			    uopt->flags |= (1 << UDF_FLAG_GID_IGNORE);
+				break;
+			case Opt_gforget:
+			    uopt->flags |= (1 << UDF_FLAG_GID_FORGET);
+				break;
 			default:
 				printk(KERN_ERR "udf: bad mount option \"%s\" "
 						"or missing value\n", p);
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 663669810be6..110f8d62616f 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -20,6 +20,10 @@
 #define UDF_FLAG_VARCONV		8
 #define UDF_FLAG_NLS_MAP		9
 #define UDF_FLAG_UTF8			10
+#define UDF_FLAG_UID_FORGET     11    /* save -1 for uid to disk */
+#define UDF_FLAG_UID_IGNORE     12    /* use sb uid instead of on disk uid */
+#define UDF_FLAG_GID_FORGET     13
+#define UDF_FLAG_GID_IGNORE     14
 
 #define UDF_PART_FLAG_UNALLOC_BITMAP	0x0001
 #define UDF_PART_FLAG_UNALLOC_TABLE	0x0002
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 8f2beec526cf..74d8be87f983 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -540,7 +540,7 @@ xfs_probe_cluster(
 
 	/* First sum forwards in this page */
 	do {
-		if (mapped != buffer_mapped(bh))
+		if (!buffer_uptodate(bh) || (mapped != buffer_mapped(bh)))
 			return total;
 		total += bh->b_size;
 	} while ((bh = bh->b_this_page) != head);
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index bfb4f2917bb6..8cdfa4151659 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -29,6 +29,7 @@
 #include <linux/blkdev.h>
 #include <linux/hash.h>
 #include <linux/kthread.h>
+#include <linux/migrate.h>
 #include "xfs_linux.h"
 
 STATIC kmem_zone_t *xfs_buf_zone;
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 53a00fb217fa..7c0e39dc6189 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -68,6 +68,9 @@ kmem_zone_t	*qm_dqzone;
 kmem_zone_t	*qm_dqtrxzone;
 STATIC kmem_shaker_t	xfs_qm_shaker;
 
+STATIC cred_t	xfs_zerocr;
+STATIC xfs_inode_t	xfs_zeroino;
+
 STATIC void	xfs_qm_list_init(xfs_dqlist_t *, char *, int);
 STATIC void	xfs_qm_list_destroy(xfs_dqlist_t *);
 
@@ -1393,8 +1396,6 @@ xfs_qm_qino_alloc(
 	xfs_trans_t	*tp;
 	int		error;
 	unsigned long	s;
-	cred_t		zerocr;
-	xfs_inode_t	zeroino;
 	int		committed;
 
 	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE);
@@ -1406,11 +1407,9 @@ xfs_qm_qino_alloc(
 		xfs_trans_cancel(tp, 0);
 		return error;
 	}
-	memset(&zerocr, 0, sizeof(zerocr));
-	memset(&zeroino, 0, sizeof(zeroino));
 
-	if ((error = xfs_dir_ialloc(&tp, &zeroino, S_IFREG, 1, 0,
-				   &zerocr, 0, 1, ip, &committed))) {
+	if ((error = xfs_dir_ialloc(&tp, &xfs_zeroino, S_IFREG, 1, 0,
+				   &xfs_zerocr, 0, 1, ip, &committed))) {
 		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
 				 XFS_TRANS_ABORT);
 		return error;
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index 06fc061c50fc..5b413946b1c5 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -130,7 +130,8 @@ xfs_growfs_rt_alloc(
 		/*
 		 * Lock the inode.
 		 */
-		if ((error = xfs_trans_iget(mp, tp, ino, 0, XFS_ILOCK_EXCL, &ip)))
+		if ((error = xfs_trans_iget(mp, tp, ino, 0,
+						XFS_ILOCK_EXCL, &ip)))
 			goto error_exit;
 		XFS_BMAP_INIT(&flist, &firstblock);
 		/*
@@ -170,8 +171,8 @@ xfs_growfs_rt_alloc(
 			/*
 			 * Lock the bitmap inode.
 			 */
-			if ((error = xfs_trans_iget(mp, tp, ino, 0, XFS_ILOCK_EXCL,
-					&ip)))
+			if ((error = xfs_trans_iget(mp, tp, ino, 0,
+							XFS_ILOCK_EXCL, &ip)))
 				goto error_exit;
 			/*
 			 * Get a buffer for the block.
@@ -2023,8 +2024,8 @@ xfs_growfs_rt(
 		/*
 		 * Lock out other callers by grabbing the bitmap inode lock.
 		 */
-		if ((error = xfs_trans_iget(mp, tp, 0, mp->m_sb.sb_rbmino,
-				XFS_ILOCK_EXCL, &ip)))
+		if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0,
+						XFS_ILOCK_EXCL, &ip)))
 			goto error_exit;
 		ASSERT(ip == mp->m_rbmip);
 		/*
@@ -2037,8 +2038,8 @@ xfs_growfs_rt(
 		/*
 		 * Get the summary inode into the transaction.
 		 */
-		if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rsumino,
-				0, XFS_ILOCK_EXCL, &ip)))
+		if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rsumino, 0,
+						XFS_ILOCK_EXCL, &ip)))
 			goto error_exit;
 		ASSERT(ip == mp->m_rsumip);
 		/*
@@ -2158,10 +2159,9 @@ xfs_rtallocate_extent(
 	/*
 	 * Lock out other callers by grabbing the bitmap inode lock.
 	 */
-	error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip);
-	if (error) {
+	if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0,
+					XFS_ILOCK_EXCL, &ip)))
 		return error;
-	}
 	sumbp = NULL;
 	/*
 	 * Allocate by size, or near another block, or exactly at some block.
@@ -2221,10 +2221,9 @@ xfs_rtfree_extent(
 	/*
 	 * Synchronize by locking the bitmap inode.
 	 */
-	error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip);
-	if (error) {
+	if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0,
+					XFS_ILOCK_EXCL, &ip)))
 		return error;
-	}
 #if defined(__KERNEL__) && defined(DEBUG)
 	/*
 	 * Check to see that this whole range is currently allocated.
@@ -2365,8 +2364,8 @@ xfs_rtpick_extent(
 	__uint64_t	seq;		/* sequence number of file creation */
 	__uint64_t	*seqp;		/* pointer to seqno in inode */
 
-	error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, XFS_ILOCK_EXCL, &ip);
-	if (error)
+	if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0,
+					XFS_ILOCK_EXCL, &ip)))
 		return error;
 	ASSERT(ip == mp->m_rbmip);
 	seqp = (__uint64_t *)&ip->i_d.di_atime;