From 9634e5360bd3ac86788fbbce426c862cb58b6fd9 Mon Sep 17 00:00:00 2001 From: Naohiro Aota Date: Tue, 6 Jun 2023 14:36:36 +0900 Subject: [PATCH] btrfs: reinsert BGs failed to reclaim commit 7e27180994383b7c741ad87749db01e4989a02ba upstream. The reclaim process can temporarily fail. For example, if the space is getting tight, it fails to make the block group read-only. If there are no further writes on that block group, the block group will never get back to the reclaim list, and the BG never gets reclaimed. In a certain workload, we can leave many such block groups never reclaimed. So, let's get it back to the list and give it a chance to be reclaimed. Fixes: 18bb8bbf13c1 ("btrfs: zoned: automatically reclaim zones") CC: stable@vger.kernel.org # 5.15+ Signed-off-by: Naohiro Aota Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/block-group.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index 94f50bc8df0d..30b264eb9d20 100644 --- a/fs/btrfs/block-group.c +++ b/fs/btrfs/block-group.c @@ -1642,6 +1642,8 @@ void btrfs_reclaim_bgs_work(struct work_struct *work) } next: + if (ret) + btrfs_mark_bg_to_reclaim(bg); btrfs_put_block_group(bg); mutex_unlock(&fs_info->reclaim_bgs_lock);