diff options
Diffstat (limited to 'fs/btrfs/volumes.h')
| -rw-r--r-- | fs/btrfs/volumes.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 21d4de0e3f1f..055e095c2f61 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -291,6 +291,25 @@ enum btrfs_read_policy { BTRFS_NR_READ_POLICY, }; +#ifdef CONFIG_BTRFS_DEBUG +/* + * Checksum mode - offload it to workqueues or do it synchronously in + * btrfs_submit_chunk(). + */ +enum btrfs_offload_csum_mode { + /* + * Choose offloading checksum or do it synchronously automatically. + * Do it synchronously if the checksum is fast, or offload to workqueues + * otherwise. + */ + BTRFS_OFFLOAD_CSUM_AUTO, + /* Always offload checksum to workqueues. */ + BTRFS_OFFLOAD_CSUM_FORCE_ON, + /* Never offload checksum to workqueues. */ + BTRFS_OFFLOAD_CSUM_FORCE_OFF, +}; +#endif + struct btrfs_fs_devices { u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */ @@ -395,6 +414,11 @@ struct btrfs_fs_devices { /* Policy used to read the mirrored stripes. */ enum btrfs_read_policy read_policy; + +#ifdef CONFIG_BTRFS_DEBUG + /* Checksum mode - offload it or do it synchronously. */ + enum btrfs_offload_csum_mode offload_csum_mode; +#endif }; #define BTRFS_MAX_DEVS(info) ((BTRFS_MAX_ITEM_SIZE(info) \ |