btrfs_lookup_bio_sums seems broken, go back to the readpage_io_hook for now

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

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 70af24aa582b..51aba8cee7ce 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -134,6 +134,7 @@ int btrfs_lookup_file_extent(struct btrfs_trans_handle *trans,
         return ret;
 }
 
+#if 0 /* broken */
 int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode,
                           struct bio *bio)
 {
@@ -200,7 +201,7 @@ int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode,
                 diff = diff * BTRFS_CRC32_SIZE;
 
                 read_extent_buffer(path->nodes[0], &sum,
-                                   (unsigned long)item + diff,
+                                   ((unsigned long)item) + diff,
                                    BTRFS_CRC32_SIZE);
 found:
                 set_state_private(io_tree, offset, sum);
@@ -210,6 +211,7 @@ found:
         btrfs_free_path(path);
         return 0;
 }
+#endif
 
 int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
                        struct bio *bio)