1 files changed, 5 insertions, 2 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index fd3d9d616ff9..f2f08189903d 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -697,7 +697,8 @@ static int btrfs_get_block(struct inode *inode, sector_t iblock,
 
 
         ret = btrfs_lookup_file_extent(trans, root, &path,
-                                       inode->i_ino, iblock, 1, 0);
+                                       inode->i_ino,
+                                       iblock << inode->i_blkbits, 0);
         if (ret < 0) {
                 btrfs_release_path(root, &path);
                 err = ret;
@@ -737,6 +738,7 @@ static int btrfs_get_block(struct inode *inode, sector_t iblock,
         }
 
         extent_start = btrfs_disk_key_offset(&leaf->items[path.slots[0]].key);
+        extent_start = extent_start >> inode->i_blkbits;
         extent_start += btrfs_file_extent_offset(item);
         extent_end = extent_start + btrfs_file_extent_num_blocks(item);
         btrfs_release_path(root, &path);
@@ -751,7 +753,8 @@ allocate:
                 err = 0;
                 goto out;
         }
-        ret = btrfs_alloc_file_extent(trans, root, objectid, iblock,
+        ret = btrfs_alloc_file_extent(trans, root, objectid,
+                                      iblock << inode->i_blkbits,
                                       1, extent_end, &blocknr);
         if (ret) {
                 err = ret;