diff options
| author | Naohiro Aota <naohiro.aota@wdc.com> | 2020-02-25 12:56:08 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-03-23 17:01:48 +0100 |
| commit | c4a816c67c396b1a06abf77bd249ac6ad02861b3 (patch) | |
| tree | 0aa4710be5c2e5300ba3552b6a572f1dc3c208de /fs/btrfs | |
| parent | b25c19f49ef294865462bf741e0430c59295ac15 (diff) | |
btrfs: introduce chunk allocation policy
Introduce chunk allocation policy for btrfs. This policy controls how
chunks and device extents are allocated from devices.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/volumes.c | 1 | ||||
| -rw-r--r-- | fs/btrfs/volumes.h | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index f1c98b01f6ec..e4a2d9600b85 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1205,6 +1205,7 @@ static int open_fs_devices(struct btrfs_fs_devices *fs_devices, fs_devices->opened = 1; fs_devices->latest_bdev = latest_dev->bdev; fs_devices->total_rw_bytes = 0; + fs_devices->chunk_alloc_policy = BTRFS_CHUNK_ALLOC_REGULAR; out: return ret; } diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 7b657f2cba57..f067b5934c46 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -207,6 +207,10 @@ BTRFS_DEVICE_GETSET_FUNCS(total_bytes); BTRFS_DEVICE_GETSET_FUNCS(disk_total_bytes); BTRFS_DEVICE_GETSET_FUNCS(bytes_used); +enum btrfs_chunk_allocation_policy { + BTRFS_CHUNK_ALLOC_REGULAR, +}; + struct btrfs_fs_devices { u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */ u8 metadata_uuid[BTRFS_FSID_SIZE]; @@ -258,6 +262,8 @@ struct btrfs_fs_devices { struct kobject *devices_kobj; struct kobject *devinfo_kobj; struct completion kobj_unregister; + + enum btrfs_chunk_allocation_policy chunk_alloc_policy; }; #define BTRFS_BIO_INLINE_CSUM_SIZE 64 |