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authorHannes Reinecke <hare@suse.de>2020-06-02 13:09:43 +0200
committerMike Snitzer <snitzer@redhat.com>2020-06-05 14:59:44 -0400
commit1565929b870fe166c5a57a85d6cb5a2bfe1e6c84 (patch)
tree3fa0f3f19cde0857c6dfd022b86825ff7234c666 /drivers/md/dm-zoned-metadata.c
parent35d0c96e422a484bbc5d4921fa20dcc880bfba2c (diff)
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/md/dm-zoned-metadata.c')
-rw-r--r--drivers/md/dm-zoned-metadata.c5
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);