Function racct_sub_racct

freebsd/kern/kern_racct.c:423–452

}

static void
racct_sub_racct(struct racct *dest, const struct racct *src)
{
	int i;

	ASSERT_RACCT_ENABLED();
	RACCT_LOCK_ASSERT();

	/*
	 * Update resource usage in dest.
	 */
	for (i = 0; i <= RACCT_MAX; i++) {
		if (!RACCT_IS_SLOPPY(i) && !RACCT_IS_DECAYING(i)) {
			KASSERT(dest->r_resources[i] >= 0,
			    ("%s: resource %d propagation meltdown: dest < 0",
			    __func__, i));
			KASSERT(src->r_resources[i] >= 0,
			    ("%s: resource %d propagation meltdown: src < 0",
			    __func__, i));
			KASSERT(src->r_resources[i] <= dest->r_resources[i],
			    ("%s: resource %d propagation meltdown: src > dest",
			    __func__, i));
		}
		if (RACCT_CAN_DROP(i)) {
			dest->r_resources[i] -= src->r_resources[i];
			if (dest->r_resources[i] < 0)
				dest->r_resources[i] = 0;
		}
	}
}

void
racct_create(struct racct **racctp)