1 files changed, 7 insertions, 4 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index db9fb3bc1e33..19a4daf03ccb 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -37,7 +37,6 @@
 #include <linux/ctype.h>
 #include <linux/namei.h>
 #include <linux/miscdevice.h>
-#include <linux/version.h>
 #include <linux/magic.h>
 #include "compat.h"
 #include "ctree.h"
@@ -380,7 +379,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
         btrfs_start_delalloc_inodes(root);
         btrfs_wait_ordered_extents(root, 0);
 
-        btrfs_clean_old_snapshots(root);
         trans = btrfs_start_transaction(root, 1);
         ret = btrfs_commit_transaction(trans, root);
         sb->s_dirt = 0;
@@ -512,6 +510,10 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
         struct btrfs_root *root = btrfs_sb(sb);
         int ret;
 
+        ret = btrfs_parse_options(root, data);
+        if (ret)
+                return -EINVAL;
+
         if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
                 return 0;
 
@@ -583,17 +585,18 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
         struct btrfs_ioctl_vol_args *vol;
         struct btrfs_fs_devices *fs_devices;
         int ret = -ENOTTY;
-        int len;
 
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
         vol = kmalloc(sizeof(*vol), GFP_KERNEL);
+        if (!vol)
+                return -ENOMEM;
+
         if (copy_from_user(vol, (void __user *)arg, sizeof(*vol))) {
                 ret = -EFAULT;
                 goto out;
         }
-        len = strnlen(vol->name, BTRFS_PATH_NAME_MAX);
 
         switch (cmd) {
         case BTRFS_IOC_SCAN_DEV: