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btrfs: zoned: requeue to unused block group list if zone finish failed

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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: 74e91b12b1 ("btrfs: zoned: zone finish unused block group")
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Naohiro Aota
2025-06-29 23:18:29 +09:00
committed by David Sterba
parent 3061801420
commit 62be7afcc1
1 changed files with 3 additions and 1 deletions
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4
fs/btrfs/block-group.c
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@@ -1639,8 +1639,10 @@ 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;
}