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| author | Hannes Reinecke <hare@suse.de> | 2020-05-11 11:24:16 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2020-05-15 17:29:36 +0300 |
| commit | bc3d5717d242a37d2e9ea85d7e7b2e3569324d24 (patch) | |
| tree | 8f03f96efab1336662a15ab9a777543b6f46c8cb /drivers/md/dm-zoned.h | |
| parent | 2613eab11996c8d1439c2a44fbca52807be7faa6 (diff) | |
| download | linux-bc3d5717d242a37d2e9ea85d7e7b2e3569324d24.tar.xz | |
dm zoned: add 'status' callback
Add callback to supply information for 'dmsetup status'
and 'dmsetup table'. The output for 'dmsetup status' is
0 <size> zoned <nr_zones> zones <nr_unmap_rnd>/<nr_rnd> random <nr_unmap_seq>/<nr_seq> sequential
where <nr_unmap_rnd> is the number of unmapped (ie free) random zones,
<nr_rnd> the total number of random zones, <nr_unmap_seq> the number
of unmapped sequential zones, and <nr_seq> the total number of
sequential zones.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-zoned.h')
| -rw-r--r-- | drivers/md/dm-zoned.h | 3 |
1 files changed, 3 insertions, 0 deletions
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). |