1 files changed, 23 insertions, 13 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index f93eb948d07..8f1fe324162 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -53,7 +53,7 @@
 int cifsFYI = 0;
 int cifsERROR = 1;
 int traceSMB = 0;
-unsigned int oplockEnabled = 1;
+bool enable_oplocks = true;
 unsigned int linuxExtEnabled = 1;
 unsigned int lookupCacheEnabled = 1;
 unsigned int multiuser_mount = 0;
@@ -74,7 +74,7 @@ module_param(cifs_min_small, int, 0);
 MODULE_PARM_DESC(cifs_min_small, "Small network buffers in pool. Default: 30 "
 				 "Range: 2 to 256");
 unsigned int cifs_max_pending = CIFS_MAX_REQ;
-module_param(cifs_max_pending, int, 0);
+module_param(cifs_max_pending, int, 0444);
 MODULE_PARM_DESC(cifs_max_pending, "Simultaneous requests to server. "
 				   "Default: 50 Range: 2 to 256");
 unsigned short echo_retries = 5;
@@ -82,6 +82,10 @@ module_param(echo_retries, ushort, 0644);
 MODULE_PARM_DESC(echo_retries, "Number of echo attempts before giving up and "
 			       "reconnecting server. Default: 5. 0 means "
 			       "never reconnect.");
+module_param(enable_oplocks, bool, 0644);
+MODULE_PARM_DESC(enable_oplocks, "Enable or disable oplocks (bool). Default:"
+				 "y/Y/1");
+
 extern mempool_t *cifs_sm_req_poolp;
 extern mempool_t *cifs_req_poolp;
 extern mempool_t *cifs_mid_poolp;
@@ -132,12 +136,12 @@ cifs_read_super(struct super_block *sb)
 	else
 		sb->s_d_op = &cifs_dentry_ops;
 
-#ifdef CIFS_NFSD_EXPORT
+#ifdef CONFIG_CIFS_NFSD_EXPORT
 	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
 		cFYI(1, "export ops supported");
 		sb->s_export_op = &cifs_export_ops;
 	}
-#endif /* CIFS_NFSD_EXPORT */
+#endif /* CONFIG_CIFS_NFSD_EXPORT */
 
 	return 0;
 
@@ -432,6 +436,12 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
 		seq_printf(s, ",mfsymlinks");
 	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE)
 		seq_printf(s, ",fsc");
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)
+		seq_printf(s, ",nostrictsync");
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
+		seq_printf(s, ",noperm");
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_STRICT_IO)
+		seq_printf(s, ",strictcache");
 
 	seq_printf(s, ",rsize=%d", cifs_sb->rsize);
 	seq_printf(s, ",wsize=%d", cifs_sb->wsize);
@@ -530,7 +540,6 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 	char *full_path = NULL;
 	char *s, *p;
 	char sep;
-	int xid;
 
 	full_path = cifs_build_path_to_root(vol, cifs_sb,
 					    cifs_sb_master_tcon(cifs_sb));
@@ -539,7 +548,6 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 
 	cFYI(1, "Get root dentry for %s", full_path);
 
-	xid = GetXid();
 	sep = CIFS_DIR_SEP(cifs_sb);
 	dentry = dget(sb->s_root);
 	p = s = full_path;
@@ -548,6 +556,12 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 		struct inode *dir = dentry->d_inode;
 		struct dentry *child;
 
+		if (!dir) {
+			dput(dentry);
+			dentry = ERR_PTR(-ENOENT);
+			break;
+		}
+
 		/* skip separators */
 		while (*s == sep)
 			s++;
@@ -563,12 +577,7 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 		mutex_unlock(&dir->i_mutex);
 		dput(dentry);
 		dentry = child;
-		if (!dentry->d_inode) {
-			dput(dentry);
-			dentry = ERR_PTR(-ENOENT);
-		}
 	} while (!IS_ERR(dentry));
-	_FreeXid(xid);
 	kfree(full_path);
 	return dentry;
 }
@@ -721,7 +730,7 @@ static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
 		if (rc < 0)
 			return (loff_t)rc;
 	}
-	return generic_file_llseek_unlocked(file, offset, origin);
+	return generic_file_llseek(file, offset, origin);
 }
 
 static int cifs_setlease(struct file *file, long arg, struct file_lock **lease)
@@ -940,7 +949,8 @@ cifs_init_once(void *inode)
 	struct cifsInodeInfo *cifsi = inode;
 
 	inode_init_once(&cifsi->vfs_inode);
-	INIT_LIST_HEAD(&cifsi->lockList);
+	INIT_LIST_HEAD(&cifsi->llist);
+	mutex_init(&cifsi->lock_mutex);
 }
 
 static int