Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux-2.6

[firefly-linux-kernel-4.4.55.git] / block / blk-cgroup.c

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index ea84a23d5e680d8acc8dfc67948e5872f0142ba7..126c341955de162cba789040d0908b1d147c943c 100644 (file)
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -28,34 +28,12 @@ static LIST_HEAD(blkio_list);
 struct blkio_cgroup blkio_root_cgroup = { .weight = 2*BLKIO_WEIGHT_DEFAULT };
 EXPORT_SYMBOL_GPL(blkio_root_cgroup);
 
-static struct cgroup_subsys_state *blkiocg_create(struct cgroup *);
-static int blkiocg_can_attach(struct cgroup *, struct cgroup_taskset *);
-static void blkiocg_attach(struct cgroup *, struct cgroup_taskset *);
-static void blkiocg_destroy(struct cgroup *);
-static int blkiocg_populate(struct cgroup_subsys *, struct cgroup *);
-
 /* for encoding cft->private value on file */
 #define BLKIOFILE_PRIVATE(x, val)      (((x) << 16) | (val))
 /* What policy owns the file, proportional or throttle */
 #define BLKIOFILE_POLICY(val)          (((val) >> 16) & 0xffff)
 #define BLKIOFILE_ATTR(val)            ((val) & 0xffff)
 
-struct cgroup_subsys blkio_subsys = {
-       .name = "blkio",
-       .create = blkiocg_create,
-       .can_attach = blkiocg_can_attach,
-       .attach = blkiocg_attach,
-       .destroy = blkiocg_destroy,
-       .populate = blkiocg_populate,
-#ifdef CONFIG_BLK_CGROUP
-       /* note: blkio_subsys_id is otherwise defined in blk-cgroup.h */
-       .subsys_id = blkio_subsys_id,
-#endif
-       .use_id = 1,
-       .module = THIS_MODULE,
-};
-EXPORT_SYMBOL_GPL(blkio_subsys);
-
 static inline void blkio_policy_insert_node(struct blkio_cgroup *blkcg,
                                            struct blkio_policy_node *pn)
 {
@@ -1537,14 +1515,9 @@ struct cftype blkio_files[] = {
                .read_map = blkiocg_file_read_map,
        },
 #endif
+       { }     /* terminate */
 };
 
-static int blkiocg_populate(struct cgroup_subsys *subsys, struct cgroup *cgroup)
-{
-       return cgroup_add_files(cgroup, subsys, blkio_files,
-                               ARRAY_SIZE(blkio_files));
-}
-
 static void blkiocg_destroy(struct cgroup *cgroup)
 {
        struct blkio_cgroup *blkcg = cgroup_to_blkio_cgroup(cgroup);
@@ -1658,6 +1631,22 @@ static void blkiocg_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
        }
 }
 
+struct cgroup_subsys blkio_subsys = {
+       .name = "blkio",
+       .create = blkiocg_create,
+       .can_attach = blkiocg_can_attach,
+       .attach = blkiocg_attach,
+       .destroy = blkiocg_destroy,
+#ifdef CONFIG_BLK_CGROUP
+       /* note: blkio_subsys_id is otherwise defined in blk-cgroup.h */
+       .subsys_id = blkio_subsys_id,
+#endif
+       .base_cftypes = blkio_files,
+       .use_id = 1,
+       .module = THIS_MODULE,
+};
+EXPORT_SYMBOL_GPL(blkio_subsys);
+
 void blkio_policy_register(struct blkio_policy_type *blkiop)
 {
        spin_lock(&blkio_list_lock);