root_user 48 include/linux/sched/user.h extern struct user_struct root_user; root_user 49 include/linux/sched/user.h #define INIT_USER (&root_user) root_user 99 kernel/user.c struct user_struct root_user = { root_user 105 kernel/user.c .ratelimit = RATELIMIT_STATE_INIT(root_user.ratelimit, 0, 0), root_user 224 kernel/user.c uid_hash_insert(&root_user, uidhashentry(GLOBAL_ROOT_UID));