1 files changed, 4 insertions, 4 deletions

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 6b2f2b414fa1..7de7707d939c 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -149,7 +149,7 @@ struct btrfs_block_group_cache *btrfs_lookup_block_group(struct
         if (ret)
                 return NULL;
 
-        block_group = (struct btrfs_block_group_cache *)ptr;
+        block_group = (struct btrfs_block_group_cache *)(unsigned long)ptr;
 
 
         if (block_group->key.objectid <= bytenr && bytenr <=
@@ -279,7 +279,7 @@ again:
                 if (ret)
                         break;
 
-                cache = (struct btrfs_block_group_cache *)ptr;
+                cache = (struct btrfs_block_group_cache *)(unsigned long)ptr;
                 last = cache->key.objectid + cache->key.offset;
                 used = btrfs_block_group_used(&cache->item);
 
@@ -537,7 +537,7 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
                 if (ret)
                         break;
 
-                cache = (struct btrfs_block_group_cache *)ptr;
+                cache = (struct btrfs_block_group_cache *)(unsigned long)ptr;
                 err = write_one_cache_group(trans, root,
                                             path, cache);
                 /*
@@ -1541,7 +1541,7 @@ int btrfs_read_block_groups(struct btrfs_root *root)
                                 found_key.objectid + found_key.offset - 1,
                                 bit | EXTENT_LOCKED, GFP_NOFS);
                 set_state_private(block_group_cache, found_key.objectid,
-                                  (u64)cache);
+                                  (unsigned long)cache);
 
                 if (key.objectid >=
                     btrfs_super_total_bytes(&info->super_copy))