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dm-delay: support zoned devices

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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: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Christoph Hellwig
2025-03-21 08:18:16 +01:00
committed by Mikulas Patocka
parent 45fc728515
commit d43929ef65
1 changed files with 17 additions and 1 deletions
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18
drivers/md/dm-delay.c
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@@ -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,