From 46281c4ef52648cf84e16013bd196a78f9d84d3d Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Fri, 26 May 2017 17:04:40 +0900 Subject: [PATCH] f2fs: Do not issue small discards in LFS mode 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. Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/segment.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index c8f5d8feac44..33b1628245e7 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1416,7 +1416,8 @@ 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,