Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (31 commits)
  [CIFS] Remove redundant test
  [CIFS] make sure that DFS pathnames are properly formed
  Remove an already-checked error condition in SendReceiveBlockingLock
  Streamline SendReceiveBlockingLock: Use "goto out:" in an error condition
  Streamline SendReceiveBlockingLock: Use "goto out:" in an error condition
  [CIFS] Streamline SendReceive[2] by using "goto out:" in an error condition
  Slightly streamline SendReceive[2]
  Check the return value of cifs_sign_smb[2]
  [CIFS] Cleanup: Move the check for too large R/W requests
  [CIFS] Slightly simplify wait_for_free_request(), remove an unnecessary "else" branch
  Simplify allocate_mid() slightly: Remove some unnecessary "else" branches
  [CIFS] In SendReceive, move consistency check out of the mutexed region
  cifs: store password in tcon
  cifs: have calc_lanman_hash take more granular args
  cifs: zero out session password before freeing it
  cifs: fix wait_for_response to time out sleeping processes correctly
  [CIFS] Can not mount with prefixpath if root directory of share is inaccessible
  [CIFS] various minor cleanups pointed out by checkpatch script
  [CIFS] fix typo
  [CIFS] remove sparse warning
  ...

Fix trivial conflict in fs/cifs/cifs_fs_sb.h due to comment changes for
the CIFS_MOUNT_xyz bit definitions between cifs updates and security
updates.

1 files changed, 53 insertions, 5 deletions

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 8b7305e73d7e..f247da9f4edc 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/inode.c
  *
- *   Copyright (C) International Business Machines  Corp., 2002,2007
+ *   Copyright (C) International Business Machines  Corp., 2002,2008
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   This library is free software; you can redistribute it and/or modify
@@ -621,6 +621,47 @@ static const struct inode_operations cifs_ipc_inode_ops = {
 	.lookup = cifs_lookup,
 };
 
+static char *build_path_to_root(struct cifs_sb_info *cifs_sb)
+{
+	int pplen = cifs_sb->prepathlen;
+	int dfsplen;
+	char *full_path = NULL;
+
+	/* if no prefix path, simply set path to the root of share to "" */
+	if (pplen == 0) {
+		full_path = kmalloc(1, GFP_KERNEL);
+		if (full_path)
+			full_path[0] = 0;
+		return full_path;
+	}
+
+	if (cifs_sb->tcon && (cifs_sb->tcon->Flags & SMB_SHARE_IS_IN_DFS))
+		dfsplen = strnlen(cifs_sb->tcon->treeName, MAX_TREE_SIZE + 1);
+	else
+		dfsplen = 0;
+
+	full_path = kmalloc(dfsplen + pplen + 1, GFP_KERNEL);
+	if (full_path == NULL)
+		return full_path;
+
+	if (dfsplen) {
+		strncpy(full_path, cifs_sb->tcon->treeName, dfsplen);
+		/* switch slash direction in prepath depending on whether
+		 * windows or posix style path names
+		 */
+		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) {
+			int i;
+			for (i = 0; i < dfsplen; i++) {
+				if (full_path[i] == '\\')
+					full_path[i] = '/';
+			}
+		}
+	}
+	strncpy(full_path + dfsplen, cifs_sb->prepath, pplen);
+	full_path[dfsplen + pplen] = 0; /* add trailing null */
+	return full_path;
+}
+
 /* gets root inode */
 struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
 {
@@ -628,6 +669,7 @@ struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
 	struct cifs_sb_info *cifs_sb;
 	struct inode *inode;
 	long rc;
+	char *full_path;
 
 	inode = iget_locked(sb, ino);
 	if (!inode)
@@ -636,13 +678,17 @@ struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
 		return inode;
 
 	cifs_sb = CIFS_SB(inode->i_sb);
-	xid = GetXid();
+	full_path = build_path_to_root(cifs_sb);
+	if (full_path == NULL)
+		return ERR_PTR(-ENOMEM);
 
+	xid = GetXid();
 	if (cifs_sb->tcon->unix_ext)
-		rc = cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid);
+		rc = cifs_get_inode_info_unix(&inode, full_path, inode->i_sb,
+						xid);
 	else
-		rc = cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid,
-					 NULL);
+		rc = cifs_get_inode_info(&inode, full_path, NULL, inode->i_sb,
+						xid, NULL);
 	if (rc && cifs_sb->tcon->ipc) {
 		cFYI(1, ("ipc connection - fake read inode"));
 		inode->i_mode |= S_IFDIR;
@@ -652,6 +698,7 @@ struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
 		inode->i_uid = cifs_sb->mnt_uid;
 		inode->i_gid = cifs_sb->mnt_gid;
 	} else if (rc) {
+		kfree(full_path);
 		_FreeXid(xid);
 		iget_failed(inode);
 		return ERR_PTR(rc);
@@ -659,6 +706,7 @@ struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
 
 	unlock_new_inode(inode);
 
+	kfree(full_path);
 	/* can not call macro FreeXid here since in a void func
 	 * TODO: This is no longer true
 	 */