From f0e90b6c663a7e3b4736cb318c6c7c589f152c28 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Thu, 24 Sep 2020 16:40:12 -0400 Subject: [PATCH] dm raid: remove unnecessary discard limits for raid10 Commit bcc90d280465e ("md/raid10: improve raid10 discard request") removes raid10's inability to properly handle large discards. So eliminate associated constraint from dm-raid's raid10 support. Signed-off-by: Mike Snitzer --- drivers/md/dm-raid.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index dc8568ab96f2..9c1f7c4de65b 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3728,17 +3728,6 @@ static void raid_io_hints(struct dm_target *ti, struct queue_limits *limits) blk_limits_io_min(limits, chunk_size_bytes); 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. - */ - 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); - } } static void raid_postsuspend(struct dm_target *ti) -- GitLab