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>
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 80a3141..a719785 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -651,15 +651,13 @@
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 @@
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);