5 files changed, 18 insertions, 12 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 5cb8af6af25d..391c2b25cca1 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2969,6 +2969,8 @@ void btrfs_inode_safe_disk_i_size_write(struct inode *inode, u64 new_i_size);
 u64 btrfs_file_extent_end(const struct btrfs_path *path);
 
 /* inode.c */
+int btrfs_verify_data_csum(struct btrfs_io_bio *io_bio, u64 phy_offset,
+			   struct page *page, u64 start, u64 end, int mirror);
 struct extent_map *btrfs_get_extent_fiemap(struct btrfs_inode *inode,
 					   u64 start, u64 len);
 noinline int can_nocow_extent(struct inode *inode, u64 offset, u64 *len,
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index ebc110231f30..1c84a7ea9894 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -524,9 +524,9 @@ static int check_tree_block_fsid(struct extent_buffer *eb)
 	return 1;
 }
 
-static int btree_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
-				      u64 phy_offset, struct page *page,
-				      u64 start, u64 end, int mirror)
+int btrfs_validate_metadata_buffer(struct btrfs_io_bio *io_bio, u64 phy_offset,
+				   struct page *page, u64 start, u64 end,
+				   int mirror)
 {
 	u64 found_start;
 	int found_level;
@@ -4638,5 +4638,5 @@ static int btrfs_cleanup_transaction(struct btrfs_fs_info *fs_info)
 static const struct extent_io_ops btree_extent_io_ops = {
 	/* mandatory callbacks */
 	.submit_bio_hook = btree_submit_bio_hook,
-	.readpage_end_io_hook = btree_readpage_end_io_hook,
+	.readpage_end_io_hook = NULL
 };
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 89b6a709a184..bc2e49246199 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -76,7 +76,9 @@ void btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info);
 void btrfs_btree_balance_dirty_nodelay(struct btrfs_fs_info *fs_info);
 void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info,
 				 struct btrfs_root *root);
-
+int btrfs_validate_metadata_buffer(struct btrfs_io_bio *io_bio, u64 phy_offset,
+				   struct page *page, u64 start, u64 end,
+				   int mirror);
 #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
 struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info);
 #endif
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index afac70ef0cc5..6cee6b611d0c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2851,9 +2851,12 @@ static void end_bio_extent_readpage(struct bio *bio)
 
 		mirror = io_bio->mirror_num;
 		if (likely(uptodate)) {
-			ret = tree->ops->readpage_end_io_hook(io_bio, offset,
-							      page, start, end,
-							      mirror);
+			if (data_inode)
+				ret = btrfs_verify_data_csum(io_bio, offset, page,
+							     start, end, mirror);
+			else
+				ret = btrfs_validate_metadata_buffer(io_bio,
+					offset, page, start, end, mirror);
 			if (ret)
 				uptodate = 0;
 			else
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b8481632dfc7..982187b0cd59 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2832,9 +2832,8 @@ zeroit:
  * if there's a match, we allow the bio to finish.  If not, the code in
  * extent_io.c will try to find good copies for us.
  */
-static int btrfs_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
-				      u64 phy_offset, struct page *page,
-				      u64 start, u64 end, int mirror)
+int btrfs_verify_data_csum(struct btrfs_io_bio *io_bio, u64 phy_offset,
+			   struct page *page, u64 start, u64 end, int mirror)
 {
 	size_t offset = start - page_offset(page);
 	struct inode *inode = page->mapping->host;
@@ -10261,7 +10260,7 @@ static const struct file_operations btrfs_dir_file_operations = {
 static const struct extent_io_ops btrfs_extent_io_ops = {
 	/* mandatory callbacks */
 	.submit_bio_hook = btrfs_submit_bio_hook,
-	.readpage_end_io_hook = btrfs_readpage_end_io_hook,
+	.readpage_end_io_hook = NULL
 };
 
 /*