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>
This commit is contained in:
Gui Hecheng 2014-12-31 09:51:35 +08:00 committed by Chris Mason
parent 2f0810880f
commit b76808fc26

View File

@ -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);