4.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Damien Le Moal <damien.lem...@wdc.com>
commit acfd2810c75b0625897fc119a2d3a9c26cc0e405 upstream.
clear_prefree_segments() issues small discards after discarding full
segments. These small discards may not be section aligned, so not zone
aligned on a zoned block device, causing __f2fs_iissue_discard_zone() to fail.
Fix this by not issuing small discards for a volume mounted with the BLKZONED
feature enabled.
Signed-off-by: Damien Le Moal <damien.lem...@wdc.com>
Reviewed-by: Chao Yu <yuch...@huawei.com>
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/f2fs/segment.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1329,7 +1329,8 @@ find_next:
sbi->blocks_per_seg, cur_pos);
len = next_pos - cur_pos;
- if (force && len < cpc->trim_minlen)
+ if (f2fs_sb_mounted_blkzoned(sbi->sb) ||
+ (force && len < cpc->trim_minlen))
goto skip;
f2fs_issue_discard(sbi, entry->start_blkaddr + cur_pos,
