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btrfs: check reclaim_size in need_preemptive_reclaim

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If we're flushing space for tickets then we have
space_info->reclaim_size set and we do not need to do background
reclaim.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2020-10-09 09:28:24 -04:00 committed by David Sterba
parent ae7913ba52
commit f205edf773
1 changed files with 7 additions and 0 deletions
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7
fs/btrfs/space-info.c
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@ -818,6 +818,13 @@ static bool need_preemptive_reclaim(struct btrfs_fs_info *fs_info,
if ((space_info->bytes_used + space_info->bytes_reserved) >= thresh)
return false;
/*
* We have tickets queued, bail so we don't compete with the async
* flushers.
*/
if (space_info->reclaim_size)
return false;
if (!btrfs_calc_reclaim_metadata_size(fs_info, space_info))
return false;