1 files changed, 0 insertions, 702 deletions

diff --git a/fs/smbfs/dir.c b/fs/smbfs/dir.c
deleted file mode 100644
index 00a70cab1f36..000000000000
--- a/fs/smbfs/dir.c
+++ /dev/null
@@ -1,702 +0,0 @@
-/*
- *  dir.c
- *
- *  Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
- *  Copyright (C) 1997 by Volker Lendecke
- *
- *  Please add a note about your changes to smbfs in the ChangeLog file.
- */
-
-#include <linux/time.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/smp_lock.h>
-#include <linux/ctype.h>
-#include <linux/net.h>
-#include <linux/sched.h>
-
-#include <linux/smb_fs.h>
-#include <linux/smb_mount.h>
-#include <linux/smbno.h>
-
-#include "smb_debug.h"
-#include "proto.h"
-
-static int smb_readdir(struct file *, void *, filldir_t);
-static int smb_dir_open(struct inode *, struct file *);
-
-static struct dentry *smb_lookup(struct inode *, struct dentry *, struct nameidata *);
-static int smb_create(struct inode *, struct dentry *, int, struct nameidata *);
-static int smb_mkdir(struct inode *, struct dentry *, int);
-static int smb_rmdir(struct inode *, struct dentry *);
-static int smb_unlink(struct inode *, struct dentry *);
-static int smb_rename(struct inode *, struct dentry *,
-		      struct inode *, struct dentry *);
-static int smb_make_node(struct inode *,struct dentry *,int,dev_t);
-static int smb_link(struct dentry *, struct inode *, struct dentry *);
-
-const struct file_operations smb_dir_operations =
-{
-	.llseek		= generic_file_llseek,
-	.read		= generic_read_dir,
-	.readdir	= smb_readdir,
-	.unlocked_ioctl	= smb_ioctl,
-	.open		= smb_dir_open,
-};
-
-const struct inode_operations smb_dir_inode_operations =
-{
-	.create		= smb_create,
-	.lookup		= smb_lookup,
-	.unlink		= smb_unlink,
-	.mkdir		= smb_mkdir,
-	.rmdir		= smb_rmdir,
-	.rename		= smb_rename,
-	.getattr	= smb_getattr,
-	.setattr	= smb_notify_change,
-};
-
-const struct inode_operations smb_dir_inode_operations_unix =
-{
-	.create		= smb_create,
-	.lookup		= smb_lookup,
-	.unlink		= smb_unlink,
-	.mkdir		= smb_mkdir,
-	.rmdir		= smb_rmdir,
-	.rename		= smb_rename,
-	.getattr	= smb_getattr,
-	.setattr	= smb_notify_change,
-	.symlink	= smb_symlink,
-	.mknod		= smb_make_node,
-	.link		= smb_link,
-};
-
-/*
- * Read a directory, using filldir to fill the dirent memory.
- * smb_proc_readdir does the actual reading from the smb server.
- *
- * The cache code is almost directly taken from ncpfs
- */
-static int 
-smb_readdir(struct file *filp, void *dirent, filldir_t filldir)
-{
-	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *dir = dentry->d_inode;
-	struct smb_sb_info *server = server_from_dentry(dentry);
-	union  smb_dir_cache *cache = NULL;
-	struct smb_cache_control ctl;
-	struct page *page = NULL;
-	int result;
-
-	ctl.page  = NULL;
-	ctl.cache = NULL;
-
-	VERBOSE("reading %s/%s, f_pos=%d\n",
-		DENTRY_PATH(dentry),  (int) filp->f_pos);
-
-	result = 0;
-
-	lock_kernel();
-
-	switch ((unsigned int) filp->f_pos) {
-	case 0:
-		if (filldir(dirent, ".", 1, 0, dir->i_ino, DT_DIR) < 0)
-			goto out;
-		filp->f_pos = 1;
-		/* fallthrough */
-	case 1:
-		if (filldir(dirent, "..", 2, 1, parent_ino(dentry), DT_DIR) < 0)
-			goto out;
-		filp->f_pos = 2;
-	}
-
-	/*
-	 * Make sure our inode is up-to-date.
-	 */
-	result = smb_revalidate_inode(dentry);
-	if (result)
-		goto out;
-
-
-	page = grab_cache_page(&dir->i_data, 0);
-	if (!page)
-		goto read_really;
-
-	ctl.cache = cache = kmap(page);
-	ctl.head  = cache->head;
-
-	if (!PageUptodate(page) || !ctl.head.eof) {
-		VERBOSE("%s/%s, page uptodate=%d, eof=%d\n",
-			 DENTRY_PATH(dentry), PageUptodate(page),ctl.head.eof);
-		goto init_cache;
-	}
-
-	if (filp->f_pos == 2) {
-		if (jiffies - ctl.head.time >= SMB_MAX_AGE(server))
-			goto init_cache;
-
-		/*
-		 * N.B. ncpfs checks mtime of dentry too here, we don't.
-		 *   1. common smb servers do not update mtime on dir changes
-		 *   2. it requires an extra smb request
-		 *      (revalidate has the same timeout as ctl.head.time)
-		 *
-		 * Instead smbfs invalidates its own cache on local changes
-		 * and remote changes are not seen until timeout.
-		 */
-	}
-
-	if (filp->f_pos > ctl.head.end)
-		goto finished;
-
-	ctl.fpos = filp->f_pos + (SMB_DIRCACHE_START - 2);
-	ctl.ofs  = ctl.fpos / SMB_DIRCACHE_SIZE;
-	ctl.idx  = ctl.fpos % SMB_DIRCACHE_SIZE;
-
-	for (;;) {
-		if (ctl.ofs != 0) {
-			ctl.page = find_lock_page(&dir->i_data, ctl.ofs);
-			if (!ctl.page)
-				goto invalid_cache;
-			ctl.cache = kmap(ctl.page);
-			if (!PageUptodate(ctl.page))
-				goto invalid_cache;
-		}
-		while (ctl.idx < SMB_DIRCACHE_SIZE) {
-			struct dentry *dent;
-			int res;
-
-			dent = smb_dget_fpos(ctl.cache->dentry[ctl.idx],
-					     dentry, filp->f_pos);
-			if (!dent)
-				goto invalid_cache;
-
-			res = filldir(dirent, dent->d_name.name,
-				      dent->d_name.len, filp->f_pos,
-				      dent->d_inode->i_ino, DT_UNKNOWN);
-			dput(dent);
-			if (res)
-				goto finished;
-			filp->f_pos += 1;
-			ctl.idx += 1;
-			if (filp->f_pos > ctl.head.end)
-				goto finished;
-		}
-		if (ctl.page) {
-			kunmap(ctl.page);
-			SetPageUptodate(ctl.page);
-			unlock_page(ctl.page);
-			page_cache_release(ctl.page);
-			ctl.page = NULL;
-		}
-		ctl.idx  = 0;
-		ctl.ofs += 1;
-	}
-invalid_cache:
-	if (ctl.page) {
-		kunmap(ctl.page);
-		unlock_page(ctl.page);
-		page_cache_release(ctl.page);
-		ctl.page = NULL;
-	}
-	ctl.cache = cache;
-init_cache:
-	smb_invalidate_dircache_entries(dentry);
-	ctl.head.time = jiffies;
-	ctl.head.eof = 0;
-	ctl.fpos = 2;
-	ctl.ofs = 0;
-	ctl.idx = SMB_DIRCACHE_START;
-	ctl.filled = 0;
-	ctl.valid  = 1;
-read_really:
-	result = server->ops->readdir(filp, dirent, filldir, &ctl);
-	if (result == -ERESTARTSYS && page)
-		ClearPageUptodate(page);
-	if (ctl.idx == -1)
-		goto invalid_cache;	/* retry */
-	ctl.head.end = ctl.fpos - 1;
-	ctl.head.eof = ctl.valid;
-finished:
-	if (page) {
-		cache->head = ctl.head;
-		kunmap(page);
-		if (result != -ERESTARTSYS)
-			SetPageUptodate(page);
-		unlock_page(page);
-		page_cache_release(page);
-	}
-	if (ctl.page) {
-		kunmap(ctl.page);
-		SetPageUptodate(ctl.page);
-		unlock_page(ctl.page);
-		page_cache_release(ctl.page);
-	}
-out:
-	unlock_kernel();
-	return result;
-}
-
-static int
-smb_dir_open(struct inode *dir, struct file *file)
-{
-	struct dentry *dentry = file->f_path.dentry;
-	struct smb_sb_info *server;
-	int error = 0;
-
-	VERBOSE("(%s/%s)\n", dentry->d_parent->d_name.name,
-		file->f_path.dentry->d_name.name);
-
-	/*
-	 * Directory timestamps in the core protocol aren't updated
-	 * when a file is added, so we give them a very short TTL.
-	 */
-	lock_kernel();
-	server = server_from_dentry(dentry);
-	if (server->opt.protocol < SMB_PROTOCOL_LANMAN2) {
-		unsigned long age = jiffies - SMB_I(dir)->oldmtime;
-		if (age > 2*HZ)
-			smb_invalid_dir_cache(dir);
-	}
-
-	/*
-	 * Note: in order to allow the smbmount process to open the
-	 * mount point, we only revalidate if the connection is valid or
-	 * if the process is trying to access something other than the root.
-	 */
-	if (server->state == CONN_VALID || !IS_ROOT(dentry))
-		error = smb_revalidate_inode(dentry);
-	unlock_kernel();
-	return error;
-}
-
-/*
- * Dentry operations routines
- */
-static int smb_lookup_validate(struct dentry *, struct nameidata *);
-static int smb_hash_dentry(struct dentry *, struct qstr *);
-static int smb_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
-static int smb_delete_dentry(struct dentry *);
-
-static const struct dentry_operations smbfs_dentry_operations =
-{
-	.d_revalidate	= smb_lookup_validate,
-	.d_hash		= smb_hash_dentry,
-	.d_compare	= smb_compare_dentry,
-	.d_delete	= smb_delete_dentry,
-};
-
-static const struct dentry_operations smbfs_dentry_operations_case =
-{
-	.d_revalidate	= smb_lookup_validate,
-	.d_delete	= smb_delete_dentry,
-};
-
-
-/*
- * This is the callback when the dcache has a lookup hit.
- */
-static int
-smb_lookup_validate(struct dentry * dentry, struct nameidata *nd)
-{
-	struct smb_sb_info *server = server_from_dentry(dentry);
-	struct inode * inode = dentry->d_inode;
-	unsigned long age = jiffies - dentry->d_time;
-	int valid;
-
-	/*
-	 * The default validation is based on dentry age:
-	 * we believe in dentries for a few seconds.  (But each
-	 * successful server lookup renews the timestamp.)
-	 */
-	valid = (age <= SMB_MAX_AGE(server));
-#ifdef SMBFS_DEBUG_VERBOSE
-	if (!valid)
-		VERBOSE("%s/%s not valid, age=%lu\n", 
-			DENTRY_PATH(dentry), age);
-#endif
-
-	if (inode) {
-		lock_kernel();
-		if (is_bad_inode(inode)) {
-			PARANOIA("%s/%s has dud inode\n", DENTRY_PATH(dentry));
-			valid = 0;
-		} else if (!valid)
-			valid = (smb_revalidate_inode(dentry) == 0);
-		unlock_kernel();
-	} else {
-		/*
-		 * What should we do for negative dentries?
-		 */
-	}
-	return valid;
-}
-
-static int 
-smb_hash_dentry(struct dentry *dir, struct qstr *this)
-{
-	unsigned long hash;
-	int i;
-
-	hash = init_name_hash();
-	for (i=0; i < this->len ; i++)
-		hash = partial_name_hash(tolower(this->name[i]), hash);
-	this->hash = end_name_hash(hash);
-  
-	return 0;
-}
-
-static int
-smb_compare_dentry(struct dentry *dir, struct qstr *a, struct qstr *b)
-{
-	int i, result = 1;
-
-	if (a->len != b->len)
-		goto out;
-	for (i=0; i < a->len; i++) {
-		if (tolower(a->name[i]) != tolower(b->name[i]))
-			goto out;
-	}
-	result = 0;
-out:
-	return result;
-}
-
-/*
- * This is the callback from dput() when d_count is going to 0.
- * We use this to unhash dentries with bad inodes.
- */
-static int
-smb_delete_dentry(struct dentry * dentry)
-{
-	if (dentry->d_inode) {
-		if (is_bad_inode(dentry->d_inode)) {
-			PARANOIA("bad inode, unhashing %s/%s\n",
-				 DENTRY_PATH(dentry));
-			return 1;
-		}
-	} else {
-		/* N.B. Unhash negative dentries? */
-	}
-	return 0;
-}
-
-/*
- * Initialize a new dentry
- */
-void
-smb_new_dentry(struct dentry *dentry)
-{
-	struct smb_sb_info *server = server_from_dentry(dentry);
-
-	if (server->mnt->flags & SMB_MOUNT_CASE)
-		dentry->d_op = &smbfs_dentry_operations_case;
-	else
-		dentry->d_op = &smbfs_dentry_operations;
-	dentry->d_time = jiffies;
-}
-
-
-/*
- * Whenever a lookup succeeds, we know the parent directories
- * are all valid, so we want to update the dentry timestamps.
- * N.B. Move this to dcache?
- */
-void
-smb_renew_times(struct dentry * dentry)
-{
-	dget(dentry);
-	spin_lock(&dentry->d_lock);
-	for (;;) {
-		struct dentry *parent;
-
-		dentry->d_time = jiffies;
-		if (IS_ROOT(dentry))
-			break;
-		parent = dentry->d_parent;
-		dget(parent);
-		spin_unlock(&dentry->d_lock);
-		dput(dentry);
-		dentry = parent;
-		spin_lock(&dentry->d_lock);
-	}
-	spin_unlock(&dentry->d_lock);
-	dput(dentry);
-}
-
-static struct dentry *
-smb_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
-{
-	struct smb_fattr finfo;
-	struct inode *inode;
-	int error;
-	struct smb_sb_info *server;
-
-	error = -ENAMETOOLONG;
-	if (dentry->d_name.len > SMB_MAXNAMELEN)
-		goto out;
-
-	/* Do not allow lookup of names with backslashes in */
-	error = -EINVAL;
-	if (memchr(dentry->d_name.name, '\\', dentry->d_name.len))
-		goto out;
-
-	lock_kernel();
-	error = smb_proc_getattr(dentry, &finfo);
-#ifdef SMBFS_PARANOIA
-	if (error && error != -ENOENT)
-		PARANOIA("find %s/%s failed, error=%d\n",
-			 DENTRY_PATH(dentry), error);
-#endif
-
-	inode = NULL;
-	if (error == -ENOENT)
-		goto add_entry;
-	if (!error) {
-		error = -EACCES;
-		finfo.f_ino = iunique(dentry->d_sb, 2);
-		inode = smb_iget(dir->i_sb, &finfo);
-		if (inode) {
-	add_entry:
-			server = server_from_dentry(dentry);
-			if (server->mnt->flags & SMB_MOUNT_CASE)
-				dentry->d_op = &smbfs_dentry_operations_case;
-			else
-				dentry->d_op = &smbfs_dentry_operations;
-
-			d_add(dentry, inode);
-			smb_renew_times(dentry);
-			error = 0;
-		}
-	}
-	unlock_kernel();
-out:
-	return ERR_PTR(error);
-}
-
-/*
- * This code is common to all routines creating a new inode.
- */
-static int
-smb_instantiate(struct dentry *dentry, __u16 fileid, int have_id)
-{
-	struct smb_sb_info *server = server_from_dentry(dentry);
-	struct inode *inode;
-	int error;
-	struct smb_fattr fattr;
-
-	VERBOSE("file %s/%s, fileid=%u\n", DENTRY_PATH(dentry), fileid);
-
-	error = smb_proc_getattr(dentry, &fattr);
-	if (error)
-		goto out_close;
-
-	smb_renew_times(dentry);
-	fattr.f_ino = iunique(dentry->d_sb, 2);
-	inode = smb_iget(dentry->d_sb, &fattr);
-	if (!inode)
-		goto out_no_inode;
-
-	if (have_id) {
-		struct smb_inode_info *ei = SMB_I(inode);
-		ei->fileid = fileid;
-		ei->access = SMB_O_RDWR;
-		ei->open = server->generation;
-	}
-	d_instantiate(dentry, inode);
-out:
-	return error;
-
-out_no_inode:
-	error = -EACCES;
-out_close:
-	if (have_id) {
-		PARANOIA("%s/%s failed, error=%d, closing %u\n",
-			 DENTRY_PATH(dentry), error, fileid);
-		smb_close_fileid(dentry, fileid);
-	}
-	goto out;
-}
-
-/* N.B. How should the mode argument be used? */
-static int
-smb_create(struct inode *dir, struct dentry *dentry, int mode,
-		struct nameidata *nd)
-{
-	struct smb_sb_info *server = server_from_dentry(dentry);
-	__u16 fileid;
-	int error;
-	struct iattr attr;
-
-	VERBOSE("creating %s/%s, mode=%d\n", DENTRY_PATH(dentry), mode);
-
-	lock_kernel();
-	smb_invalid_dir_cache(dir);
-	error = smb_proc_create(dentry, 0, get_seconds(), &fileid);
-	if (!error) {
-		if (server->opt.capabilities & SMB_CAP_UNIX) {
-			/* Set attributes for new file */
-			attr.ia_valid = ATTR_MODE;
-			attr.ia_mode = mode;
-			error = smb_proc_setattr_unix(dentry, &attr, 0, 0);
-		}
-		error = smb_instantiate(dentry, fileid, 1);
-	} else {
-		PARANOIA("%s/%s failed, error=%d\n",
-			 DENTRY_PATH(dentry), error);
-	}
-	unlock_kernel();
-	return error;
-}
-
-/* N.B. How should the mode argument be used? */
-static int
-smb_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
-	struct smb_sb_info *server = server_from_dentry(dentry);
-	int error;
-	struct iattr attr;
-
-	lock_kernel();
-	smb_invalid_dir_cache(dir);
-	error = smb_proc_mkdir(dentry);
-	if (!error) {
-		if (server->opt.capabilities & SMB_CAP_UNIX) {
-			/* Set attributes for new directory */
-			attr.ia_valid = ATTR_MODE;
-			attr.ia_mode = mode;
-			error = smb_proc_setattr_unix(dentry, &attr, 0, 0);
-		}
-		error = smb_instantiate(dentry, 0, 0);
-	}
-	unlock_kernel();
-	return error;
-}
-
-static int
-smb_rmdir(struct inode *dir, struct dentry *dentry)
-{
-	struct inode *inode = dentry->d_inode;
-	int error;
-
-	/*
-	 * Close the directory if it's open.
-	 */
-	lock_kernel();
-	smb_close(inode);
-
-	/*
-	 * Check that nobody else is using the directory..
-	 */
-	error = -EBUSY;
-	if (!d_unhashed(dentry))
-		goto out;
-
-	smb_invalid_dir_cache(dir);
-	error = smb_proc_rmdir(dentry);
-
-out:
-	unlock_kernel();
-	return error;
-}
-
-static int
-smb_unlink(struct inode *dir, struct dentry *dentry)
-{
-	int error;
-
-	/*
-	 * Close the file if it's open.
-	 */
-	lock_kernel();
-	smb_close(dentry->d_inode);
-
-	smb_invalid_dir_cache(dir);
-	error = smb_proc_unlink(dentry);
-	if (!error)
-		smb_renew_times(dentry);
-	unlock_kernel();
-	return error;
-}
-
-static int
-smb_rename(struct inode *old_dir, struct dentry *old_dentry,
-	   struct inode *new_dir, struct dentry *new_dentry)
-{
-	int error;
-
-	/*
-	 * Close any open files, and check whether to delete the
-	 * target before attempting the rename.
-	 */
-	lock_kernel();
-	if (old_dentry->d_inode)
-		smb_close(old_dentry->d_inode);
-	if (new_dentry->d_inode) {
-		smb_close(new_dentry->d_inode);
-		error = smb_proc_unlink(new_dentry);
-		if (error) {
-			VERBOSE("unlink %s/%s, error=%d\n",
-				DENTRY_PATH(new_dentry), error);
-			goto out;
-		}
-		/* FIXME */
-		d_delete(new_dentry);
-	}
-
-	smb_invalid_dir_cache(old_dir);
-	smb_invalid_dir_cache(new_dir);
-	error = smb_proc_mv(old_dentry, new_dentry);
-	if (!error) {
-		smb_renew_times(old_dentry);
-		smb_renew_times(new_dentry);
-	}
-out:
-	unlock_kernel();
-	return error;
-}
-
-/*
- * FIXME: samba servers won't let you create device nodes unless uid/gid
- * matches the connection credentials (and we don't know which those are ...)
- */
-static int
-smb_make_node(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
-{
-	int error;
-	struct iattr attr;
-
-	attr.ia_valid = ATTR_MODE | ATTR_UID | ATTR_GID;
-	attr.ia_mode = mode;
-	current_euid_egid(&attr.ia_uid, &attr.ia_gid);
-
-	if (!new_valid_dev(dev))
-		return -EINVAL;
-
-	smb_invalid_dir_cache(dir);
-	error = smb_proc_setattr_unix(dentry, &attr, MAJOR(dev), MINOR(dev));
-	if (!error) {
-		error = smb_instantiate(dentry, 0, 0);
-	}
-	return error;
-}
-
-/*
- * dentry = existing file
- * new_dentry = new file
- */
-static int
-smb_link(struct dentry *dentry, struct inode *dir, struct dentry *new_dentry)
-{
-	int error;
-
-	DEBUG1("smb_link old=%s/%s new=%s/%s\n",
-	       DENTRY_PATH(dentry), DENTRY_PATH(new_dentry));
-	smb_invalid_dir_cache(dir);
-	error = smb_proc_link(server_from_dentry(dentry), dentry, new_dentry);
-	if (!error) {
-		smb_renew_times(dentry);
-		error = smb_instantiate(new_dentry, 0, 0);
-	}
-	return error;
-}