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([10.224.109.7]) by uls-op-cesaip01.wdc.com with ESMTP; 18 Feb 2025 23:58:10 -0800 From: Naohiro Aota To: linux-btrfs@vger.kernel.org Cc: Naohiro Aota Subject: [PATCH v2 09/12] btrfs-progs: zoned: implement RAID1 zone info loading Date: Wed, 19 Feb 2025 16:57:53 +0900 Message-ID: <95b5685c2d4a7f6bb7330b6b0baf4e92833eb605.1739951758.git.naohiro.aota@wdc.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Implement it just like the kernel side. Signed-off-by: Naohiro Aota --- kernel-shared/zoned.c | 46 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/kernel-shared/zoned.c b/kernel-shared/zoned.c index f0a44587679b..e3ee1dc941dc 100644 --- a/kernel-shared/zoned.c +++ b/kernel-shared/zoned.c @@ -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. */