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authorMike Snitzer <snitzer@redhat.com>2020-09-24 16:40:12 -0400
committerMike Snitzer <snitzer@redhat.com>2020-09-29 16:33:10 -0400
commitf0e90b6c663a7e3b4736cb318c6c7c589f152c28 (patch)
treeda33a2e8e4e809faee9ab95293cd1611ba85b50c /drivers/md
parente0910c8e4f87bb9f767e61a778b0d9271c4dc512 (diff)
downloadlinux-f0e90b6c663a7e3b4736cb318c6c7c589f152c28.tar.bz2
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 <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-raid.c11
1 files changed, 0 insertions, 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)