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dm: remove dm_check_zoned

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Fold it into the only caller in preparation to changes in the
queue limits setup.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20240527123634.1116952-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2024-05-27 14:36:19 +02:00 committed by Jens Axboe
parent d9780064b1
commit 5e7a4bbcc3
1 changed files with 23 additions and 36 deletions
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59
drivers/md/dm-zone.c
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@ -160,37 +160,6 @@ static int dm_check_zoned_cb(struct blk_zone *zone, unsigned int idx,
return 0;
}
static int dm_check_zoned(struct mapped_device *md, struct dm_table *t)
{
struct gendisk *disk = md->disk;
unsigned int nr_conv_zones = 0;
int ret;
/* Count conventional zones */
md->zone_revalidate_map = t;
ret = dm_blk_report_zones(disk, 0, UINT_MAX,
dm_check_zoned_cb, &nr_conv_zones);
md->zone_revalidate_map = NULL;
if (ret < 0) {
DMERR("Check zoned failed %d", ret);
return ret;
}
/*
* If we only have conventional zones, expose the mapped device as
* a regular device.
*/
if (nr_conv_zones >= ret) {
disk->queue->limits.max_open_zones = 0;
disk->queue->limits.max_active_zones = 0;
disk->queue->limits.zoned = false;
clear_bit(DMF_EMULATE_ZONE_APPEND, &md->flags);
disk->nr_zones = 0;
}
return 0;
}
/*
* Revalidate the zones of a mapped device to initialize resource necessary
* for zone append emulation. Note that we cannot simply use the block layer
@ -254,6 +223,8 @@ static bool dm_table_supports_zone_append(struct dm_table *t)
int dm_set_zones_restrictions(struct dm_table *t, struct request_queue *q)
{
struct mapped_device *md = t->md;
struct gendisk *disk = md->disk;
unsigned int nr_conv_zones = 0;
int ret;
/*
@ -272,14 +243,30 @@ int dm_set_zones_restrictions(struct dm_table *t, struct request_queue *q)
return 0;
/*
* Check that the mapped device will indeed be zoned, that is, that it
* has sequential write required zones.
* Count conventional zones to check that the mapped device will indeed
* have sequential write required zones.
*/
ret = dm_check_zoned(md, t);
if (ret)
md->zone_revalidate_map = t;
ret = dm_blk_report_zones(disk, 0, UINT_MAX,
dm_check_zoned_cb, &nr_conv_zones);
md->zone_revalidate_map = NULL;
if (ret < 0) {
DMERR("Check zoned failed %d", ret);
return ret;
if (!blk_queue_is_zoned(q))
}
/*
* If we only have conventional zones, expose the mapped device as
* a regular device.
*/
if (nr_conv_zones >= ret) {
disk->queue->limits.max_open_zones = 0;
disk->queue->limits.max_active_zones = 0;
disk->queue->limits.zoned = false;
clear_bit(DMF_EMULATE_ZONE_APPEND, &md->flags);
disk->nr_zones = 0;
return 0;
}
if (!md->disk->nr_zones) {
DMINFO("%s using %s zone append",