diff options
| author | Naohiro Aota <naohiro.aota@wdc.com> | 2022-07-09 08:18:50 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-07-25 17:45:42 +0200 |
| commit | 2ce543f478433a0eec0f72090d7e814f1d53d456 (patch) | |
| tree | 468257359ff4f00ee1b11ac4c52f90d5289c84c6 /fs/btrfs/zoned.c | |
| parent | 898793d992c23dac6126a6a94ad893eae1a2c9df (diff) | |
btrfs: zoned: wait until zone is finished when allocation didn't progress
When the allocated position doesn't progress, we cannot submit IOs to
finish a block group, but there should be ongoing IOs that will finish a
block group. So, in that case, we wait for a zone to be finished and retry
the allocation after that.
Introduce a new flag BTRFS_FS_NEED_ZONE_FINISH for fs_info->flags to
indicate we need a zone finish to have proceeded. The flag is set when the
allocator detected it cannot activate a new block group. And, it is cleared
once a zone is finished.
CC: stable@vger.kernel.org # 5.16+
Fixes: afba2bc036b0 ("btrfs: zoned: implement active zone tracking")
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/zoned.c')
| -rw-r--r-- | fs/btrfs/zoned.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index 6c391b5b4172..b150b07ba1a7 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -2007,6 +2007,9 @@ static int do_zone_finish(struct btrfs_block_group *block_group, bool fully_writ /* For active_bg_list */ btrfs_put_block_group(block_group); + clear_bit(BTRFS_FS_NEED_ZONE_FINISH, &fs_info->flags); + wake_up_all(&fs_info->zone_finish_wait); + return 0; } @@ -2043,6 +2046,9 @@ bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags) } mutex_unlock(&fs_info->chunk_mutex); + if (!ret) + set_bit(BTRFS_FS_NEED_ZONE_FINISH, &fs_info->flags); + return ret; } |