[PATCH 4/8] btrfs: make btrfs_check_super_csum() non-static

[Anand Jain]

In preparation to add the superblock csum verification for the
scan context, make btrfs_check_super_csum() non-static.

Signed-off-by: Anand Jain <anand.j...@oracle.com>
---
 fs/btrfs/disk-io.c | 2 +-
 fs/btrfs/disk-io.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 8b4e602ed60a..6299ab18da5f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -395,7 +395,7 @@ static int verify_parent_transid(struct extent_io_tree 
*io_tree,
  * Otherwise: -EINVAL  if csum type is not found
  *           -EUCLEAN if csum does not match
  */
-static int btrfs_check_super_csum(char *raw_disk_sb)
+int btrfs_check_super_csum(char *raw_disk_sb)
 {
        struct btrfs_super_block *disk_sb =
                (struct btrfs_super_block *)raw_disk_sb;
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 70a88d61b547..c400cc68f913 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -69,6 +69,7 @@ int write_all_supers(struct btrfs_fs_info *fs_info, int 
max_mirrors);
 struct buffer_head *btrfs_read_dev_super(struct block_device *bdev);
 int btrfs_read_dev_one_super(struct block_device *bdev, int copy_num,
                        struct buffer_head **bh_ret);
+int btrfs_check_super_csum(char *raw_disk_sb);
 int btrfs_commit_super(struct btrfs_fs_info *fs_info);
 struct btrfs_root *btrfs_read_fs_root(struct btrfs_root *tree_root,
                                      struct btrfs_key *location);
-- 
2.7.0

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