From: Wang Shilong <wangsl-f...@cn.fujitsu.com>

extent-tree.c: In function 'btrfs_free_block_groups':
extent-tree.c:3189:12: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]

Signed-off-by: Wang Shilong <wangsl-f...@cn.fujitsu.com>
---
 extent-tree.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/extent-tree.c b/extent-tree.c
index b0cfe0a..7561bbb 100644
--- a/extent-tree.c
+++ b/extent-tree.c
@@ -3186,7 +3186,8 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
                        break;
                ret = get_state_private(&info->block_group_cache, start, &ptr);
                if (!ret) {
-                       cache = (struct btrfs_block_group_cache *)ptr;
+                       cache = (struct btrfs_block_group_cache *)
+                               (unsigned long)ptr;
                        if (cache->free_space_ctl) {
                                btrfs_remove_free_space_cache(cache);
                                kfree(cache->free_space_ctl);
-- 
1.7.11.7

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