diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-zoned-metadata.c | 15 | ||||
| -rw-r--r-- | drivers/md/dm-zoned-target.c | 26 | ||||
| -rw-r--r-- | drivers/md/dm-zoned.h | 3 |
3 files changed, 44 insertions, 0 deletions
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c index 369de15c4e80..c8787560fa9f 100644 --- a/drivers/md/dm-zoned-metadata.c +++ b/drivers/md/dm-zoned-metadata.c @@ -202,6 +202,11 @@ sector_t dmz_start_block(struct dmz_metadata *zmd, struct dm_zone *zone) return (sector_t)dmz_id(zmd, zone) << zmd->dev->zone_nr_blocks_shift; } +unsigned int dmz_nr_zones(struct dmz_metadata *zmd) +{ + return zmd->dev->nr_zones; +} + unsigned int dmz_nr_chunks(struct dmz_metadata *zmd) { return zmd->nr_chunks; @@ -217,6 +222,16 @@ unsigned int dmz_nr_unmap_rnd_zones(struct dmz_metadata *zmd) return atomic_read(&zmd->unmap_nr_rnd); } +unsigned int dmz_nr_seq_zones(struct dmz_metadata *zmd) +{ + return zmd->nr_seq; +} + +unsigned int dmz_nr_unmap_seq_zones(struct dmz_metadata *zmd) +{ + return atomic_read(&zmd->unmap_nr_seq); +} + /* * Lock/unlock mapping table. * The map lock also protects all the zone lists. diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c index f4f83d39b3dc..0b4b27d280fb 100644 --- a/drivers/md/dm-zoned-target.c +++ b/drivers/md/dm-zoned-target.c @@ -965,6 +965,31 @@ static int dmz_iterate_devices(struct dm_target *ti, return fn(ti, dmz->ddev, 0, capacity, data); } +static void dmz_status(struct dm_target *ti, status_type_t type, + unsigned int status_flags, char *result, + unsigned int maxlen) +{ + struct dmz_target *dmz = ti->private; + ssize_t sz = 0; + char buf[BDEVNAME_SIZE]; + + switch (type) { + case STATUSTYPE_INFO: + DMEMIT("%u zones %u/%u random %u/%u sequential", + dmz_nr_zones(dmz->metadata), + dmz_nr_unmap_rnd_zones(dmz->metadata), + dmz_nr_rnd_zones(dmz->metadata), + dmz_nr_unmap_seq_zones(dmz->metadata), + dmz_nr_seq_zones(dmz->metadata)); + break; + case STATUSTYPE_TABLE: + format_dev_t(buf, dmz->dev->bdev->bd_dev); + DMEMIT("%s", buf); + break; + } + return; +} + static struct target_type dmz_type = { .name = "zoned", .version = {1, 1, 0}, @@ -978,6 +1003,7 @@ static struct target_type dmz_type = { .postsuspend = dmz_suspend, .resume = dmz_resume, .iterate_devices = dmz_iterate_devices, + .status = dmz_status, }; static int __init dmz_init(void) diff --git a/drivers/md/dm-zoned.h b/drivers/md/dm-zoned.h index 5b5e493d479c..884c0e586082 100644 --- a/drivers/md/dm-zoned.h +++ b/drivers/md/dm-zoned.h @@ -190,8 +190,11 @@ void dmz_free_zone(struct dmz_metadata *zmd, struct dm_zone *zone); void dmz_map_zone(struct dmz_metadata *zmd, struct dm_zone *zone, unsigned int chunk); void dmz_unmap_zone(struct dmz_metadata *zmd, struct dm_zone *zone); +unsigned int dmz_nr_zones(struct dmz_metadata *zmd); unsigned int dmz_nr_rnd_zones(struct dmz_metadata *zmd); unsigned int dmz_nr_unmap_rnd_zones(struct dmz_metadata *zmd); +unsigned int dmz_nr_seq_zones(struct dmz_metadata *zmd); +unsigned int dmz_nr_unmap_seq_zones(struct dmz_metadata *zmd); /* * Activate a zone (increment its reference count). |