btrfs: fix for write_super_lockfs/unlockfs error handling

Commit c4be0c1dc4cdc37b175579be1460f15ac6495e9a added the ability for
write_super_lockfs to return errors, and renamed them to match.  But
btrfs didn't get converted.

Do the minimal conversion to make it compile again.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index b4c101d9322c..0a14b495532f 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -605,18 +605,20 @@ out:
         return ret;
 }
 
-static void btrfs_write_super_lockfs(struct super_block *sb)
+static int btrfs_freeze(struct super_block *sb)
 {
         struct btrfs_root *root = btrfs_sb(sb);
         mutex_lock(&root->fs_info->transaction_kthread_mutex);
         mutex_lock(&root->fs_info->cleaner_mutex);
+        return 0;
 }
 
-static void btrfs_unlockfs(struct super_block *sb)
+static int btrfs_unfreeze(struct super_block *sb)
 {
         struct btrfs_root *root = btrfs_sb(sb);
         mutex_unlock(&root->fs_info->cleaner_mutex);
         mutex_unlock(&root->fs_info->transaction_kthread_mutex);
+        return 0;
 }
 
 static struct super_operations btrfs_super_ops = {
@@ -631,8 +633,8 @@ static struct super_operations btrfs_super_ops = {
         .destroy_inode  = btrfs_destroy_inode,
         .statfs         = btrfs_statfs,
         .remount_fs     = btrfs_remount,
-        .write_super_lockfs = btrfs_write_super_lockfs,
-        .unlockfs       = btrfs_unlockfs,
+        .freeze_fs      = btrfs_freeze,
+        .unfreeze_fs    = btrfs_unfreeze,
 };
 
 static const struct file_operations btrfs_ctl_fops = {