258 	const struct cred *old;  in prepare_creds()  local
269 	old = task->cred;  in prepare_creds()
270 	memcpy(new, old, sizeof(struct cred));  in prepare_creds()
294 	if (security_prepare_creds(new, old, GFP_KERNEL_ACCOUNT) < 0)  in prepare_creds()
453 	const struct cred *old = task->real_cred;  in commit_creds()  local
459 	BUG_ON(task->cred != old);  in commit_creds()
461 	BUG_ON(read_cred_subscribers(old) < 2);  in commit_creds()
462 	validate_creds(old);  in commit_creds()
470 	if (!uid_eq(old->euid, new->euid) ||  in commit_creds()
471 	    !gid_eq(old->egid, new->egid) ||  in commit_creds()
472 	    !uid_eq(old->fsuid, new->fsuid) ||  in commit_creds()
473 	    !gid_eq(old->fsgid, new->fsgid) ||  in commit_creds()
474 	    !cred_cap_issubset(old, new)) {  in commit_creds()
491 	if (!uid_eq(new->fsuid, old->fsuid))  in commit_creds()
493 	if (!gid_eq(new->fsgid, old->fsgid))  in commit_creds()
501 	if (new->user != old->user || new->user_ns != old->user_ns)  in commit_creds()
506 	if (new->user != old->user || new->user_ns != old->user_ns)  in commit_creds()
507 		dec_rlimit_ucounts(old->ucounts, UCOUNT_RLIMIT_NPROC, 1);  in commit_creds()
508 	alter_cred_subscribers(old, -2);  in commit_creds()
511 	if (!uid_eq(new->uid,   old->uid)  ||  in commit_creds()
512 	    !uid_eq(new->euid,  old->euid) ||  in commit_creds()
513 	    !uid_eq(new->suid,  old->suid) ||  in commit_creds()
514 	    !uid_eq(new->fsuid, old->fsuid))  in commit_creds()
517 	if (!gid_eq(new->gid,   old->gid)  ||  in commit_creds()
518 	    !gid_eq(new->egid,  old->egid) ||  in commit_creds()
519 	    !gid_eq(new->sgid,  old->sgid) ||  in commit_creds()
520 	    !gid_eq(new->fsgid, old->fsgid))  in commit_creds()
524 	put_cred(old);  in commit_creds()
525 	put_cred(old);  in commit_creds()
560 	const struct cred *old = current->cred;  in override_creds()  local
566 	validate_creds(old);  in override_creds()
584 	alter_cred_subscribers(old, -1);  in override_creds()
586 	kdebug("override_creds() = %p{%d,%d}", old,  in override_creds()
587 	       atomic_read(&old->usage),  in override_creds()
588 	       read_cred_subscribers(old));  in override_creds()
589 	return old;  in override_creds()
600 void revert_creds(const struct cred *old)  in revert_creds()  argument
604 	kdebug("revert_creds(%p{%d,%d})", old,  in revert_creds()
605 	       atomic_read(&old->usage),  in revert_creds()
606 	       read_cred_subscribers(old));  in revert_creds()
608 	validate_creds(old);  in revert_creds()
610 	alter_cred_subscribers(old, 1);  in revert_creds()
611 	rcu_assign_pointer(current->cred, old);  in revert_creds()
612 	trace_android_rvh_revert_creds(current, old);  in revert_creds()
720 	const struct cred *old;  in prepare_kernel_cred()  local
730 		old = get_task_cred(daemon);  in prepare_kernel_cred()
732 		old = get_cred(&init_cred);  in prepare_kernel_cred()
734 	validate_creds(old);  in prepare_kernel_cred()
736 	*new = *old;  in prepare_kernel_cred()
759 	if (security_prepare_creds(new, old, GFP_KERNEL_ACCOUNT) < 0)  in prepare_kernel_cred()
762 	put_cred(old);  in prepare_kernel_cred()
768 	put_cred(old);  in prepare_kernel_cred()