diff options
| author | Anand Jain <anand.jain@oracle.com> | 2023-07-31 19:16:32 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-08-21 14:54:48 +0200 |
| commit | 4844c3664a72d36cc79752cb651c78860b14c240 (patch) | |
| tree | b5f589102b8fefa97abab40da23277689853e3b4 /fs/btrfs/volumes.h | |
| parent | 182741d287fb1ea870ee6ef45aa1915a0b031233 (diff) | |
btrfs: add a helper to read the superblock metadata_uuid
In some cases, we need to read the FSID from the superblock when the
metadata_uuid is not set, and otherwise, read the metadata_uuid. So,
add a helper.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
| -rw-r--r-- | fs/btrfs/volumes.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index a59898d51e9e..2128a032c3b7 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -747,5 +747,6 @@ int btrfs_verify_dev_extents(struct btrfs_fs_info *fs_info); bool btrfs_repair_one_zone(struct btrfs_fs_info *fs_info, u64 logical); bool btrfs_pinned_by_swapfile(struct btrfs_fs_info *fs_info, void *ptr); +u8 *btrfs_sb_fsid_ptr(struct btrfs_super_block *sb); #endif |