btrfs: cleanup init for list in free-space-cache

o removed an unecessary INIT_LIST_HEAD after LIST_HEAD

o merge a declare & INIT_LIST_HEAD pair into one LIST_HEAD

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 80a3141463e7..a71978578fa7 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -651,15 +651,13 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
         struct io_ctl io_ctl;
         struct btrfs_key key;
         struct btrfs_free_space *e, *n;
-        struct list_head bitmaps;
+        LIST_HEAD(bitmaps);
         u64 num_entries;
         u64 num_bitmaps;
         u64 generation;
         u8 type;
         int ret = 0;
 
-        INIT_LIST_HEAD(&bitmaps);
-
         /* Nothing in the space cache, goodbye */
         if (!i_size_read(inode))
                 return 0;
@@ -2905,7 +2903,6 @@ int btrfs_find_space_cluster(struct btrfs_root *root,
         trace_btrfs_find_cluster(block_group, offset, bytes, empty_size,
                                  min_bytes);
 
-        INIT_LIST_HEAD(&bitmaps);
         ret = setup_cluster_no_bitmap(block_group, cluster, &bitmaps, offset,
                                       bytes + empty_size,
                                       cont1_bytes, min_bytes);