Commit f0e90b6c authored by Mike Snitzer's avatar Mike Snitzer
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dm raid: remove unnecessary discard limits for raid10 



Commit bcc90d28 ("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: default avatarMike Snitzer <snitzer@redhat.com>
parent e0910c8e

drivers/md/dm-raid.c

+0 −11
Original line number Diff line number Diff line
@@ -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)

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