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authorMiao Xie <miaox@cn.fujitsu.com>2014-10-23 14:42:50 +0800
committerMiao Xie <miaox@cn.fujitsu.com>2014-12-03 10:18:45 +0800
commitaf8e2d1df9848b39dd86b1e696bf8781d2020a88 (patch)
tree0abf72105056f1c5fe7038c37f4c5d63ea29c875 /fs/btrfs/volumes.h
parentb89e1b012c7f81123344058d5f245b844464d30c (diff)
downloadlinux-af8e2d1df9848b39dd86b1e696bf8781d2020a88.tar.bz2
Btrfs, scrub: repair the common data on RAID5/6 if it is corrupted
This patch implement the RAID5/6 common data repair function, the implementation is similar to the scrub on the other RAID such as RAID1, the differentia is that we don't read the data from the mirror, we use the data repair function of RAID5/6. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
-rw-r--r--fs/btrfs/volumes.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 08980fa23039..01094bb804c7 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -393,6 +393,10 @@ int btrfs_account_dev_extents_size(struct btrfs_device *device, u64 start,
int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret, int mirror_num);
+int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int rw,
+ u64 logical, u64 *length,
+ struct btrfs_bio **bbio_ret, int mirror_num,
+ u64 **raid_map_ret);
int btrfs_rmap_block(struct btrfs_mapping_tree *map_tree,
u64 chunk_start, u64 physical, u64 devid,
u64 **logical, int *naddrs, int *stripe_len);