kernfs_root_from_sb  335 include/linux/kernfs.h struct kernfs_root *kernfs_root_from_sb(struct super_block *sb);
kernfs_root_from_sb 1044 kernel/cgroup/cgroup-v1.c 	struct kernfs_root *kf_root = kernfs_root_from_sb(fc->root->d_sb);
kernfs_root_from_sb 2213 kernel/cgroup/cgroup.c 	struct kernfs_root *kf_root = kernfs_root_from_sb(sb);