From: Naohiro Aota <naohiro.aota@wdc.com>
To: David Sterba <dsterba@suse.com>, Josef Bacik <josef@toxicpanda.com>
Cc: linux-btrfs@vger.kernel.org, Naohiro Aota <naohiro.aota@wdc.com>
Subject: [PATCH v2 11/17] btrfs: zoned: load active zone info for block group
Date: Thu, 19 Aug 2021 21:19:18 +0900 [thread overview]
Message-ID: <c50cccd2606e930eb8d8235bac001e4e22a309c4.1629349224.git.naohiro.aota@wdc.com> (raw)
In-Reply-To: <cover.1629349224.git.naohiro.aota@wdc.com>
Load activeness of underlying zones of a block group. When underlying zones
are active, we add the block group to the fs_info->zone_active_bgs list.
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
---
fs/btrfs/zoned.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index f28685898df4..441cdd4c507f 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1170,6 +1170,7 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
unsigned int nofs_flag;
u64 *alloc_offsets = NULL;
u64 *caps = NULL;
+ unsigned long *active = NULL;
u64 last_alloc = 0;
u32 num_sequential = 0, num_conventional = 0;
@@ -1215,6 +1216,12 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
goto out;
}
+ active = bitmap_zalloc(map->num_stripes, GFP_NOFS);
+ if (!active) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
for (i = 0; i < map->num_stripes; i++) {
bool is_sequential;
struct blk_zone zone;
@@ -1298,8 +1305,16 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
/* Partially used zone */
alloc_offsets[i] =
((zone.wp - zone.start) << SECTOR_SHIFT);
+ __set_bit(i, active);
break;
}
+
+ /*
+ * Consider a zone as active if we can allow any number of
+ * active zones.
+ */
+ if (!device->zone_info->max_active_zones)
+ __set_bit(i, active);
}
if (num_sequential > 0)
@@ -1347,6 +1362,7 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
}
cache->alloc_offset = alloc_offsets[0];
cache->zone_capacity = caps[0];
+ cache->zone_is_active = test_bit(0, active);
break;
case BTRFS_BLOCK_GROUP_DUP:
case BTRFS_BLOCK_GROUP_RAID1:
@@ -1362,6 +1378,14 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
goto out;
}
+ if (cache->zone_is_active) {
+ btrfs_get_block_group(cache);
+ spin_lock(&fs_info->zone_active_bgs_lock);
+ list_add_tail(&cache->active_bg_list,
+ &fs_info->zone_active_bgs);
+ spin_unlock(&fs_info->zone_active_bgs_lock);
+ }
+
out:
if (cache->alloc_offset > fs_info->zone_size) {
btrfs_err(fs_info,
@@ -1393,6 +1417,7 @@ int btrfs_load_block_group_zone_info(struct btrfs_block_group *cache, bool new)
kfree(cache->physical_map);
cache->physical_map = NULL;
}
+ bitmap_free(active);
kfree(caps);
kfree(alloc_offsets);
free_extent_map(em);
--
2.33.0
next prev parent reply other threads:[~2021-08-19 12:27 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-19 12:19 [PATCH v2 00/17] ZNS Support for Btrfs Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 01/17] btrfs: zoned: load zone capacity information from devices Naohiro Aota
2021-08-24 7:52 ` Johannes Thumshirn
2021-08-19 12:19 ` [PATCH v2 02/17] btrfs: zoned: move btrfs_free_excluded_extents out from btrfs_calc_zone_unusable Naohiro Aota
2021-08-24 7:55 ` Johannes Thumshirn
2021-08-19 12:19 ` [PATCH v2 03/17] btrfs: zoned: calculate free space from zone capacity Naohiro Aota
2021-08-24 7:59 ` Johannes Thumshirn
2021-08-24 15:27 ` David Sterba
2021-08-24 16:04 ` Johannes Thumshirn
2021-08-19 12:19 ` [PATCH v2 04/17] btrfs: zoned: tweak reclaim threshold for " Naohiro Aota
2021-08-24 8:09 ` Johannes Thumshirn
2021-08-19 12:19 ` [PATCH v2 05/17] btrfs: zoned: consider zone as full when no more SB can be written Naohiro Aota
2021-08-24 8:37 ` Johannes Thumshirn
2021-08-19 12:19 ` [PATCH v2 06/17] btrfs: zoned: locate superblock position using zone capacity Naohiro Aota
2021-08-25 8:32 ` Johannes Thumshirn
2021-08-19 12:19 ` [PATCH v2 07/17] btrfs: zoned: finish superblock zone once no space left for new SB Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 08/17] btrfs: zoned: load active zone information from devices Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 09/17] btrfs: zoned: introduce physical_map to btrfs_block_group Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 10/17] btrfs: zoned: implement active zone tracking Naohiro Aota
2021-08-19 12:19 ` Naohiro Aota [this message]
2021-08-19 12:19 ` [PATCH v2 12/17] btrfs: zoned: activate block group on allocation Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 13/17] btrfs: zoned: activate new block group Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 14/17] btrfs: move ffe_ctl one level up Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 15/17] btrfs: zoned: avoid chunk allocation if active block group has enough space Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 16/17] btrfs: zoned: finish fully written block group Naohiro Aota
2021-08-19 12:19 ` [PATCH v2 17/17] btrfs: zoned: finish relocating " Naohiro Aota
2021-08-27 16:25 ` [PATCH v2 00/17] ZNS Support for Btrfs David Sterba
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