From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sat, 10 Jan 2009 14:09:52 +0000 (-0800)
Subject: btrfs: fix for write_super_lockfs/unlockfs error handling
X-Git-Tag: v2.6.29-rc1~6
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?p=linux-2.6-omap-h63xx.git;a=commitdiff_plain;h=0176260fc30842e358cf34afa7dcd9413db44822

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>
---

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index b4c101d9322..0a14b495532 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 = {