From: Naohiro Aota Date: Sun, 29 Jun 2025 14:18:29 +0000 (+0900) Subject: btrfs: zoned: requeue to unused block group list if zone finish failed X-Git-Tag: v6.16.2~56 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c0d506a49d97013f7a80f1b07772d33428800098;p=thirdparty%2Fkernel%2Fstable.git btrfs: zoned: requeue to unused block group list if zone finish failed commit 62be7afcc13b2727bdc6a4c91aefed6b452e6ecc upstream. btrfs_zone_finish() can fail for several reason. If it is -EAGAIN, we need to try it again later. So, put the block group to the retry list properly. Failing to do so will keep the removable block group intact until remount and can causes unnecessary ENOSPC. Fixes: 74e91b12b115 ("btrfs: zoned: zone finish unused block group") CC: stable@vger.kernel.org # 6.1+ Reviewed-by: Johannes Thumshirn Signed-off-by: Naohiro Aota Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index 5b0cb04b2b93f..8b67dba3b7df3 100644 --- a/fs/btrfs/block-group.c +++ b/fs/btrfs/block-group.c @@ -1616,8 +1616,10 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info) ret = btrfs_zone_finish(block_group); if (ret < 0) { btrfs_dec_block_group_ro(block_group); - if (ret == -EAGAIN) + if (ret == -EAGAIN) { + btrfs_link_bg_list(block_group, &retry_list); ret = 0; + } goto next; }