D20859.diff
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	Index: head/sys/vm/vm_page.c
	===================================================================
	--- head/sys/vm/vm_page.c
	+++ head/sys/vm/vm_page.c
	@@ -3491,7 +3491,12 @@
	pmap_page_set_memattr(m, VM_MEMATTR_DEFAULT);

	#if VM_NRESERVLEVEL > 0
	- if (vm_reserv_free_page(m))
	+ /*
	+ * Determine whether the page belongs to a reservation. If the page was
	+ * allocated from a per-CPU cache, it cannot belong to a reservation, so
	+ * as an optimization, we avoid the check in that case.
	+ */
	+ if ((m->flags & PG_PCPU_CACHE) == 0 && vm_reserv_free_page(m))
	return (false);
	#endif