[PATCH 4.14 221/237] btrfs: do not check delayed items are empty for single transaction cleanup

Greg Kroah-Hartman
2020-02-27T14:32:45Z

From: Josef Bacik <josef@toxicpanda.com>

commit 1e90315149f3fe148e114a5de86f0196d1c21fa5 upstream.

btrfs_assert_delayed_root_empty() will check if the delayed root is
completely empty, but this is a filesystem-wide check. On cleanup we
may have allowed other transactions to begin, for whatever reason, and
thus the delayed root is not empty.

So remove this check from cleanup_one_transation(). This however can
stay in btrfs_cleanup_transaction(), because it checks only after all of
the transactions have been properly cleaned up, and thus is valid.

CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
fs/btrfs/disk-io.c | 1 -
1 file changed, 1 deletion(-)

--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4394,7 +4394,6 @@ void btrfs_cleanup_one_transaction(struc
wake_up(&fs_info->transaction_wait);

btrfs_destroy_delayed_inodes(fs_info);
- btrfs_assert_delayed_root_empty(fs_info);

btrfs_destroy_marked_extents(fs_info, &cur_trans->dirty_pages,
EXTENT_DIRTY);