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Commit d38b349c authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
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Btrfs: don't bother kicking async if there's nothing to reclaim 



We do this check when we start the async reclaimer thread, might as well check
before we kick it off to save us some cycles.  Thanks,

Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 31bada7c

fs/btrfs/extent-tree.c

+3 −0
Original line number Diff line number Diff line
@@ -4944,6 +4944,9 @@ static inline int need_do_async_reclaim(struct btrfs_space_info *space_info, 
	if ((space_info->bytes_used + space_info->bytes_reserved) >= thresh)

		return 0;



	if (!btrfs_calc_reclaim_metadata_size(fs_info->fs_root, space_info))

		return 0;



	return (used >= thresh && !btrfs_fs_closing(fs_info) &&

		!test_bit(BTRFS_FS_STATE_REMOUNTING, &fs_info->fs_state));

}