diff options
| author |   Hannes Reinecke <hare@suse.de> | 2020-06-02 13:09:43 +0200 |
|---|---|---|
| committer |   Mike Snitzer <snitzer@redhat.com> | 2020-06-05 14:59:44 -0400 |
| commit | 1565929b870fe166c5a57a85d6cb5a2bfe1e6c84 (patch) | |
| tree | 3fa0f3f19cde0857c6dfd022b86825ff7234c666 /drivers | |
| parent | dm zoned: add debugging message for reading superblocks (diff) | |
| download | wireguard-linux-1565929b870fe166c5a57a85d6cb5a2bfe1e6c84.tar.xz wireguard-linux-1565929b870fe166c5a57a85d6cb5a2bfe1e6c84.zip | |
dm zoned: avoid unnecessary device recalulation for secondary superblock
The secondary superblock must reside on the same device as the primary
superblock, so there is no need to re-calculate the device.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-zoned-metadata.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c index ef1524d5928a..043ed882970a 100644 --- a/drivers/md/dm-zoned-metadata.c +++ b/drivers/md/dm-zoned-metadata.c @@ -1135,7 +1135,7 @@ static int dmz_lookup_secondary_sb(struct dmz_metadata *zmd) /* Bad first super block: search for the second one */ zmd->sb[1].block = zmd->sb[0].block + zone_nr_blocks; zmd->sb[1].zone = zmd->sb[0].zone + 1; - zmd->sb[1].dev = dmz_zone_to_dev(zmd, zmd->sb[1].zone); + zmd->sb[1].dev = zmd->sb[0].dev; for (i = 0; i < zmd->nr_rnd_zones - 1; i++) { if (dmz_read_sb(zmd, 1) != 0) break; @@ -1144,7 +1144,6 @@ static int dmz_lookup_secondary_sb(struct dmz_metadata *zmd) return 0; } zmd->sb[1].block += zone_nr_blocks; - zmd->sb[1].dev = dmz_zone_to_dev(zmd, zmd->sb[1].zone + i); } dmz_free_mblock(zmd, mblk); @@ -1263,7 +1262,7 @@ static int dmz_load_sb(struct dmz_metadata *zmd) if (!zmd->sb[1].zone) zmd->sb[1].zone = zmd->sb[0].zone + zmd->nr_meta_zones; zmd->sb[1].block = dmz_start_block(zmd, zmd->sb[1].zone); - zmd->sb[1].dev = dmz_zone_to_dev(zmd, zmd->sb[1].zone); + zmd->sb[1].dev = zmd->sb[0].dev; ret = dmz_get_sb(zmd, 1); } else ret = dmz_lookup_secondary_sb(zmd); |