diff options
| author | Naohiro Aota <naohiro.aota@wdc.com> | 2021-08-19 21:19:15 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-10-26 19:07:59 +0200 |
| commit | ea6f8ddcde638123a010f8a43f68e5856b1788cc (patch) | |
| tree | 89f485b739205124753a4408cb88a3a81440b32c /fs/btrfs/zoned.h | |
| parent | 8376d9e1ed8f4a83d0889081893e872fe2dbc755 (diff) | |
btrfs: zoned: load active zone information from devices
The ZNS specification defines a limit on the number of zones that can be in
the implicit open, explicit open or closed conditions. Any zone with such
condition is defined as an active zone and correspond to any zone that is
being written or that has been only partially written. If the maximum
number of active zones is reached, we must either reset or finish some
active zones before being able to chose other zones for storing data.
Load queue_max_active_zones() and track the number of active zones left on
the device.
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/zoned.h')
| -rw-r--r-- | fs/btrfs/zoned.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/zoned.h b/fs/btrfs/zoned.h index 4f30f3bf1886..48628782e4b8 100644 --- a/fs/btrfs/zoned.h +++ b/fs/btrfs/zoned.h @@ -23,8 +23,11 @@ struct btrfs_zoned_device_info { u64 zone_size; u8 zone_size_shift; u32 nr_zones; + unsigned int max_active_zones; + atomic_t active_zones_left; unsigned long *seq_zones; unsigned long *empty_zones; + unsigned long *active_zones; struct blk_zone sb_zones[2 * BTRFS_SUPER_MIRROR_MAX]; }; |