btrfs: drop unused space_info parameter from create_space_info

Since commit dc2d3005d27d ("btrfs: remove dead create_space_info
calls"), there is only one caller btrfs_init_space_info. However, it
doesn't need create_space_info to return space_info at all.

Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 7273dcd..7ebb05f 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4007,8 +4007,7 @@ static const char *alloc_name(u64 flags)
        };
 }
 
-static int create_space_info(struct btrfs_fs_info *info, u64 flags,
-                            struct btrfs_space_info **new)
+static int create_space_info(struct btrfs_fs_info *info, u64 flags)
 {
 
        struct btrfs_space_info *space_info;
@@ -4046,7 +4045,6 @@ static int create_space_info(struct btrfs_fs_info *info, u64 flags,
                return ret;
        }
 
-       *new = space_info;
        list_add_rcu(&space_info->list, &info->space_info);
        if (flags & BTRFS_BLOCK_GROUP_DATA)
                info->data_sinfo = space_info;
@@ -10825,7 +10823,6 @@ next:
 
 int btrfs_init_space_info(struct btrfs_fs_info *fs_info)
 {
-       struct btrfs_space_info *space_info;
        struct btrfs_super_block *disk_super;
        u64 features;
        u64 flags;
@@ -10841,21 +10838,21 @@ int btrfs_init_space_info(struct btrfs_fs_info *fs_info)
                mixed = 1;
 
        flags = BTRFS_BLOCK_GROUP_SYSTEM;
-       ret = create_space_info(fs_info, flags, &space_info);
+       ret = create_space_info(fs_info, flags);
        if (ret)
                goto out;
 
        if (mixed) {
                flags = BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA;
-               ret = create_space_info(fs_info, flags, &space_info);
+               ret = create_space_info(fs_info, flags);
        } else {
                flags = BTRFS_BLOCK_GROUP_METADATA;
-               ret = create_space_info(fs_info, flags, &space_info);
+               ret = create_space_info(fs_info, flags);
                if (ret)
                        goto out;
 
                flags = BTRFS_BLOCK_GROUP_DATA;
-               ret = create_space_info(fs_info, flags, &space_info);
+               ret = create_space_info(fs_info, flags);
        }
 out:
        return ret;