diff options
Diffstat (limited to '')
| -rw-r--r-- | fs/btrfs/volumes.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index f9fe698a9b4b..120f65e21eeb 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -309,6 +309,8 @@ enum btrfs_read_policy { #ifdef CONFIG_BTRFS_EXPERIMENTAL /* Balancing RAID1 reads across all striped devices (round-robin). */ BTRFS_READ_POLICY_RR, + /* Read from a specific device. */ + BTRFS_READ_POLICY_DEVID, #endif BTRFS_NR_READ_POLICY, }; @@ -446,6 +448,9 @@ struct btrfs_fs_devices { */ u32 rr_min_contig_read; + /* Device to be used for reading in case of RAID1. */ + u64 read_devid; + /* Checksum mode - offload it or do it synchronously. */ enum btrfs_offload_csum_mode offload_csum_mode; #endif |