cgroups: pass handler to cgroup mount() method

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

src/lxc/cgroups/cgfsng.c

@@ -1866,11 +1866,12 @@ static inline int cg_mount_cgroup_full(int type, struct hierarchy *h,
 }
 
 __cgfsng_ops static bool cgfsng_mount(struct cgroup_ops *ops,
-				      struct lxc_conf *conf, int type)
+				      struct lxc_handler *handler, int type)
 {
 	__do_close int dfd_mnt_cgroupfs = -EBADF, fd_fs = -EBADF;
 	__do_free char *cgroup_root = NULL;
 	bool has_cgns = false, wants_force_mount = false;
+	struct lxc_conf *conf = handler->conf;
 	struct lxc_rootfs *rootfs = &conf->rootfs;
 	const char *rootfs_mnt = get_rootfs_mnt(rootfs);
 	int ret;

src/lxc/cgroups/cgroup.h

@@ -172,7 +172,7 @@ struct cgroup_ops {
 	bool (*chown)(struct cgroup_ops *ops, struct lxc_conf *conf);
 	bool (*attach)(struct cgroup_ops *ops, const struct lxc_conf *conf,
 		       const char *name, const char *lxcpath, pid_t pid);
-	bool (*mount)(struct cgroup_ops *ops, struct lxc_conf *conf, int type);
+	bool (*mount)(struct cgroup_ops *ops, struct lxc_handler *handler, int type);
 	bool (*devices_activate)(struct cgroup_ops *ops,
 				 struct lxc_handler *handler);
 	bool (*monitor_delegate_controllers)(struct cgroup_ops *ops);

src/lxc/conf.c

@@ -704,7 +704,7 @@ static int lxc_mount_auto_mounts(struct lxc_handler *handler, int flags)
 		if (flags & LXC_AUTO_CGROUP_FORCE)
 			cg_flags |= LXC_AUTO_CGROUP_FORCE;
 
-		if (!handler->cgroup_ops->mount(handler->cgroup_ops, conf, cg_flags))
+		if (!handler->cgroup_ops->mount(handler->cgroup_ops, handler, cg_flags))
 			return log_error_errno(-1, errno, "Failed to mount \"/sys/fs/cgroup\"");
 	}