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btrfs-progs: zoned: implement RAID1 zone info loading

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Implement it just like the kernel side.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Naohiro Aota 2025-02-19 16:57:53 +09:00 committed by David Sterba
parent 8a04df97cc
commit 03a70d0a9f
1 changed files with 46 additions and 0 deletions
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46
kernel-shared/zoned.c
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@ -1018,6 +1018,50 @@ static int btrfs_load_block_group_dup(struct btrfs_fs_info *fs_info,
return 0;
}
static int btrfs_load_block_group_raid1(struct btrfs_fs_info *fs_info,
struct btrfs_block_group *bg,
struct map_lookup *map,
struct zone_info *zone_info,
unsigned long *active)
{
int i;
if ((map->type & BTRFS_BLOCK_GROUP_DATA) && !fs_info->stripe_root) {
btrfs_err(fs_info, "zoned: data %s needs raid-stripe-tree",
btrfs_bg_type_to_raid_name(map->type));
return -EINVAL;
}
/* In case a device is missing we have a cap of 0, so don't use it. */
bg->zone_capacity = min_not_zero(zone_info[0].capacity, zone_info[1].capacity);
for (i = 0; i < map->num_stripes; i++) {
if (zone_info[i].alloc_offset == WP_MISSING_DEV ||
zone_info[i].alloc_offset == WP_CONVENTIONAL)
continue;
if (zone_info[0].alloc_offset != zone_info[i].alloc_offset) {
btrfs_err(fs_info,
"zoned: write pointer offset mismatch of zones in %s profile",
btrfs_bg_type_to_raid_name(map->type));
return -EIO;
}
if (test_bit(0, active) != test_bit(i, active)) {
return -EIO;
} else {
if (test_bit(0, active))
bg->zone_is_active = 1;
}
}
if (zone_info[0].alloc_offset != WP_MISSING_DEV)
bg->alloc_offset = zone_info[0].alloc_offset;
else
bg->alloc_offset = zone_info[i - 1].alloc_offset;
return 0;
}
int btrfs_load_block_group_zone_info(struct btrfs_fs_info *fs_info,
struct btrfs_block_group *cache)
{
@ -1112,6 +1156,8 @@ int btrfs_load_block_group_zone_info(struct btrfs_fs_info *fs_info,
case BTRFS_BLOCK_GROUP_RAID1:
case BTRFS_BLOCK_GROUP_RAID1C3:
case BTRFS_BLOCK_GROUP_RAID1C4:
ret = btrfs_load_block_group_raid1(fs_info, cache, map, zone_info, active);
break;
case BTRFS_BLOCK_GROUP_RAID0:
case BTRFS_BLOCK_GROUP_RAID10:
/* Temporarily fails these case, until following commits. */