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btrfs: don't clear ret in btrfs_start_dirty_block_groups

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commit 34d1eb0e599875064955a74712f08ff14c8e3d5f upstream.

If we fail to update a block group item in the loop we'll break, however
we'll do btrfs_run_delayed_refs and lose our error value in ret, and
thus not clean up properly.  Fix this by only running the delayed refs
if there was no failure.

CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.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>
This commit is contained in:
Josef Bacik 2020-12-16 11:22:17 -05:00 committed by Greg Kroah-Hartman
parent 14e17e90bf
commit 018abb5089
1 changed files with 2 additions and 1 deletions
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3
fs/btrfs/block-group.c
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@ -2687,7 +2687,8 @@ int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans)
* Go through delayed refs for all the stuff we've just kicked off
* and then loop back (just once)
*/
ret = btrfs_run_delayed_refs(trans, 0);
if (!ret)
ret = btrfs_run_delayed_refs(trans, 0);
if (!ret && loops == 0) {
loops++;
spin_lock(&cur_trans->dirty_bgs_lock);