From: Greg Kroah-Hartman gregkh@linuxfoundation.org
stable inclusion from stable-5.10.1 commit 26934c83005e75eab2b8d54d0fa5adbee4f27535 bugzilla: 46822
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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; } }