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Subject[070/111] Btrfs: run orphan cleanup on default fs root
2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Josef Bacik <josef@redhat.com>

commit e3acc2a6850efff647f1c5458524eb3a8bcba20a upstream.

This patch revert's commit

6c090a11e1c403b727a6a8eff0b97d5fb9e95cb5

Since it introduces this problem where we can run orphan cleanup on a
volume that can have orphan entries re-added. Instead of my original
fix, Yan Zheng pointed out that we can just revert my original fix and
then run the orphan cleanup in open_ctree after we look up the fs_root.
I have tested this with all the tests that gave me problems and this
patch fixes both problems. Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Acked-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


---
fs/btrfs/disk-io.c | 6 ++++++
fs/btrfs/inode.c | 6 ------
2 files changed, 6 insertions(+), 6 deletions(-)

--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1993,6 +1993,12 @@ struct btrfs_root *open_ctree(struct sup
if (!fs_info->fs_root)
goto fail_trans_kthread;

+ if (!(sb->s_flags & MS_RDONLY)) {
+ down_read(&fs_info->cleanup_work_sem);
+ btrfs_orphan_cleanup(fs_info->fs_root);
+ up_read(&fs_info->cleanup_work_sem);
+ }
+
return tree_root;

fail_trans_kthread:
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3796,12 +3796,6 @@ struct inode *btrfs_lookup_dentry(struct

if (location.type == BTRFS_INODE_ITEM_KEY) {
inode = btrfs_iget(dir->i_sb, &location, root);
- if (unlikely(root->clean_orphans) &&
- !(inode->i_sb->s_flags & MS_RDONLY)) {
- down_read(&root->fs_info->cleanup_work_sem);
- btrfs_orphan_cleanup(root);
- up_read(&root->fs_info->cleanup_work_sem);
- }
return inode;
}




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