Reviewed-by: Xie XiuQi xiexiuqi@huawei.com
On 2020/12/17 9:41, Chen Jun wrote:
From: Greg Kroah-Hartman gregkh@linuxfoundation.org
stable inclusion from stable-5.10.1 commit 26934c83005e75eab2b8d54d0fa5adbee4f27535 bugzilla: 46822
This reverts commit e0910c8e4f87bb9f767e61a778b0d9271c4dc512.
It causes problems :(
Reported-by: Dave Jones davej@codemonkey.org.uk Reported-by: Mike Snitzer snitzer@redhat.com Cc: Zdenek Kabelac zkabelac@redhat.com Cc: Mikulas Patocka mpatocka@redhat.com Cc: Linus Torvalds <torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Chen Jun chenjun102@huawei.com
drivers/md/dm-raid.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index dc8568ab96f2..56b723d012ac 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3730,14 +3730,12 @@ static void raid_io_hints(struct dm_target *ti, struct queue_limits *limits) blk_limits_io_opt(limits, chunk_size_bytes * mddev_data_stripes(rs));
/*
* RAID10 personality requires bio splitting,* RAID0/1/4/5/6 don't and process large discard bios properly.
* RAID1 and RAID10 personalities require bio splitting,* RAID0/4/5/6 don't and process large discard bios properly.
- if (rs_is_raid10(rs)) {
limits->discard_granularity = max(chunk_size_bytes,limits->discard_granularity);limits->max_discard_sectors = min_not_zero(rs->md.chunk_sectors,limits->max_discard_sectors);
- if (rs_is_raid1(rs) || rs_is_raid10(rs)) {
limits->discard_granularity = chunk_size_bytes;limits->max_discard_sectors = rs->md.chunk_sectors;}