Commit d43929ef authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Mikulas Patocka
Browse files

dm-delay: support zoned devices 



Add support for zoned device by passing through report_zoned to the
underlying read device.

This is required to make enable xfstests xfs/311 on zoned devices.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
parent 45fc7285

drivers/md/dm-delay.c

+17 −1
Original line number Diff line number Diff line
@@ -369,6 +369,21 @@ static int delay_map(struct dm_target *ti, struct bio *bio) 
	return delay_bio(dc, c, bio);

}



#ifdef CONFIG_BLK_DEV_ZONED

static int delay_report_zones(struct dm_target *ti,

		struct dm_report_zones_args *args, unsigned int nr_zones)

{

	struct delay_c *dc = ti->private;

	struct delay_class *c = &dc->read;



	return dm_report_zones(c->dev->bdev, c->start,

			c->start + dm_target_offset(ti, args->next_sector),

			args, nr_zones);

}

#else

#define delay_report_zones	NULL

#endif



#define DMEMIT_DELAY_CLASS(c) \

	DMEMIT("%s %llu %u", (c)->dev->name, (unsigned long long)(c)->start, (c)->delay)
@@ -424,11 +439,12 @@ static int delay_iterate_devices(struct dm_target *ti, 
static struct target_type delay_target = {

	.name	     = "delay",

	.version     = {1, 4, 0},

	.features    = DM_TARGET_PASSES_INTEGRITY,

	.features    = DM_TARGET_PASSES_INTEGRITY | DM_TARGET_ZONED_HM,

	.module      = THIS_MODULE,

	.ctr	     = delay_ctr,

	.dtr	     = delay_dtr,

	.map	     = delay_map,

	.report_zones = delay_report_zones,

	.presuspend  = delay_presuspend,

	.resume	     = delay_resume,

	.status	     = delay_status,