Btrfs: Retry metadata reads in the face of checksum failures

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 9d2991d1d3ce..8d6b8a14cc30 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -27,7 +27,8 @@ struct extent_state;
 struct extent_io_ops {
         int (*fill_delalloc)(struct inode *inode, u64 start, u64 end);
         int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
-        int (*submit_bio_hook)(struct inode *inode, int rw, struct bio *bio);
+        int (*submit_bio_hook)(struct inode *inode, int rw, struct bio *bio,
+                               int mirror_num);
         int (*merge_bio_hook)(struct page *page, unsigned long offset,
                               size_t size, struct bio *bio);
         int (*readpage_io_hook)(struct page *page, u64 start, u64 end);
@@ -172,7 +173,7 @@ struct extent_buffer *find_extent_buffer(struct extent_io_tree *tree,
 void free_extent_buffer(struct extent_buffer *eb);
 int read_extent_buffer_pages(struct extent_io_tree *tree,
                              struct extent_buffer *eb, u64 start, int wait,
-                             get_extent_t *get_extent);
+                             get_extent_t *get_extent, int mirror_num);
 
 static inline void extent_buffer_get(struct extent_buffer *eb)
 {