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| author | Hannes Reinecke <hare@suse.de> | 2020-05-11 10:24:22 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2020-05-15 10:29:37 -0400 |
| commit | 2234e7321dc61f116de1dc913f3ffa7efff02068 (patch) | |
| tree | 037fb13a78992931101203e69361ccedb4121521 /drivers/md/dm-zoned-metadata.c | |
| parent | 368205601375bbfb41b07ec8295eab208b6fced5 (diff) | |
| download | lwn-2234e7321dc61f116de1dc913f3ffa7efff02068.tar.gz lwn-2234e7321dc61f116de1dc913f3ffa7efff02068.zip | |
dm zoned: introduce dmz_metadata_label() to format device name
Introduce dmz_metadata_label() to format the device-mapper device
name and use it instead of the device name of the underlying device.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-zoned-metadata.c')
| -rw-r--r-- | drivers/md/dm-zoned-metadata.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c index b844ff02ae7b..7cda48683c0b 100644 --- a/drivers/md/dm-zoned-metadata.c +++ b/drivers/md/dm-zoned-metadata.c @@ -134,6 +134,8 @@ struct dmz_sb { struct dmz_metadata { struct dmz_dev *dev; + char devname[BDEVNAME_SIZE]; + sector_t zone_bitmap_size; unsigned int zone_nr_bitmap_blocks; unsigned int zone_bits_per_mblk; @@ -260,6 +262,11 @@ unsigned int dmz_nr_unmap_seq_zones(struct dmz_metadata *zmd) return atomic_read(&zmd->unmap_nr_seq); } +const char *dmz_metadata_label(struct dmz_metadata *zmd) +{ + return (const char *)zmd->devname; +} + /* * Lock/unlock mapping table. * The map lock also protects all the zone lists. @@ -2439,7 +2446,8 @@ static void dmz_cleanup_metadata(struct dmz_metadata *zmd) /* * Initialize the zoned metadata. */ -int dmz_ctr_metadata(struct dmz_dev *dev, struct dmz_metadata **metadata) +int dmz_ctr_metadata(struct dmz_dev *dev, struct dmz_metadata **metadata, + const char *devname) { struct dmz_metadata *zmd; unsigned int i; @@ -2450,6 +2458,7 @@ int dmz_ctr_metadata(struct dmz_dev *dev, struct dmz_metadata **metadata) if (!zmd) return -ENOMEM; + strcpy(zmd->devname, devname); zmd->dev = dev; zmd->mblk_rbtree = RB_ROOT; init_rwsem(&zmd->mblk_sem); |