Replace uses of vm_page_unwire(m, PQ_NONE) with vm_page_unwire_noq(m).

These calls are not the same in general: the former will dequeue the
page if it is enqueued, while the latter will just leave it alone.  But,
all existing uses of the former apply to unmanaged pages, which are
never enqueued in the first place.  No functional change intended.

Reviewed by:	kib
MFC after:	1 week
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D20470

sys/amd64/amd64/pmap.c

@@ -4081,7 +4081,7 @@ free_pv_chunk(struct pv_chunk *pc)
 	/* entire chunk is free, return it */
 	m = PHYS_TO_VM_PAGE(DMAP_TO_PHYS((vm_offset_t)pc));
 	dump_drop_page(m->phys_addr);
-	vm_page_unwire(m, PQ_NONE);
+	vm_page_unwire_noq(m);
 	vm_page_free(m);
 }
 

sys/arm/arm/pmap-v6.c

@@ -2973,7 +2973,7 @@ free_pv_chunk(struct pv_chunk *pc)
 	/* entire chunk is free, return it */
 	m = PHYS_TO_VM_PAGE(pmap_kextract((vm_offset_t)pc));
 	pmap_qremove((vm_offset_t)pc, 1);
-	vm_page_unwire(m, PQ_NONE);
+	vm_page_unwire_noq(m);
 	vm_page_free(m);
 	pmap_pte2list_free(&pv_vafree, (vm_offset_t)pc);
 }

sys/arm/nvidia/drm2/tegra_bo.c

@@ -67,7 +67,7 @@ tegra_bo_destruct(struct tegra_bo *bo)
 		cdev_pager_free_page(bo->cdev_pager, m);
 		vm_page_lock(m);
 		m->flags &= ~PG_FICTITIOUS;
-		vm_page_unwire(m, PQ_NONE);
+		vm_page_unwire_noq(m);
 		vm_page_free(m);
 		vm_page_unlock(m);
 	}

sys/compat/linuxkpi/common/src/linux_page.c

@@ -317,7 +317,7 @@ linux_shmem_read_mapping_page_gfp(vm_object_t obj, int pindex, gfp_t gfp)
 			rv = vm_pager_get_pages(obj, &page, 1, NULL, NULL);
 			if (rv != VM_PAGER_OK) {
 				vm_page_lock(page);
-				vm_page_unwire(page, PQ_NONE);
+				vm_page_unwire_noq(page);
 				vm_page_free(page);
 				vm_page_unlock(page);
 				VM_OBJECT_WUNLOCK(obj);

sys/dev/drm2/ttm/ttm_page_alloc.c

@@ -137,7 +137,7 @@ ttm_vm_page_free(vm_page_t m)
 	KASSERT((m->oflags & VPO_UNMANAGED) == 0, ("ttm got unmanaged %p", m));
 	m->flags &= ~PG_FICTITIOUS;
 	m->oflags |= VPO_UNMANAGED;
-	vm_page_unwire(m, PQ_NONE);
+	vm_page_unwire_noq(m);
 	vm_page_free(m);
 }
 

sys/dev/ti/if_ti.c

@@ -1623,7 +1623,7 @@ ti_newbuf_jumbo(struct ti_softc *sc, int idx, struct mbuf *m_old)
 			}
 			sf[i] = sf_buf_alloc(frame, SFB_NOWAIT);
 			if (sf[i] == NULL) {
-				vm_page_unwire(frame, PQ_NONE);
+				vm_page_unwire_noq(frame);
 				vm_page_free(frame);
 				device_printf(sc->ti_dev, "buffer allocation "
 				    "failed -- packet dropped!\n");

sys/dev/xen/gntdev/gntdev.c

@@ -278,7 +278,7 @@ gref_list_dtor(struct cleanup_data_struct *cleanup_data)
 					continue;
 				gnttab_free_grant_reference(gref->gref_id);
 			}
-			vm_page_unwire(gref->page, PQ_NONE);
+			vm_page_unwire_noq(gref->page);
 			vm_page_free(gref->page);
 			gref->page = NULL;
 		}

sys/i386/i386/pmap.c

@@ -2465,7 +2465,7 @@ free_pv_chunk(struct pv_chunk *pc)
 	/* entire chunk is free, return it */
 	m = PHYS_TO_VM_PAGE(pmap_kextract((vm_offset_t)pc));
 	pmap_qremove((vm_offset_t)pc, 1);
-	vm_page_unwire(m, PQ_NONE);
+	vm_page_unwire_noq(m);
 	vm_page_free(m);
 	pmap_ptelist_free(&pv_vafree, (vm_offset_t)pc);
 }

sys/mips/mips/pmap.c

@@ -1591,7 +1591,7 @@ free_pv_chunk(struct pv_chunk *pc)
 	/* entire chunk is free, return it */
 	m = PHYS_TO_VM_PAGE(MIPS_DIRECT_TO_PHYS((vm_offset_t)pc));
 	dump_drop_page(m->phys_addr);
-	vm_page_unwire(m, PQ_NONE);
+	vm_page_unwire_noq(m);
 	vm_page_free(m);
 }
 

sys/riscv/riscv/pmap.c

@@ -1648,7 +1648,7 @@ free_pv_chunk(struct pv_chunk *pc)
 	/* entire chunk is free, return it */
 	m = PHYS_TO_VM_PAGE(DMAP_TO_PHYS((vm_offset_t)pc));
 	dump_drop_page(m->phys_addr);
-	vm_page_unwire(m, PQ_NONE);
+	vm_page_unwire_noq(m);
 	vm_page_free(m);
 }
 

sys/vm/uma_core.c

@@ -1279,9 +1279,9 @@ pcpu_page_alloc(uma_zone_t zone, vm_size_t bytes, int domain, uint8_t *pflag,
 		zkva += PAGE_SIZE;
 	}
 	return ((void*)addr);
- fail:
+fail:
 	TAILQ_FOREACH_SAFE(p, &alloctail, listq, p_next) {
-		vm_page_unwire(p, PQ_NONE);
+		vm_page_unwire_noq(p);
 		vm_page_free(p);
 	}
 	return (NULL);
@@ -1331,7 +1331,7 @@ noobj_alloc(uma_zone_t zone, vm_size_t bytes, int domain, uint8_t *flags,
 		 * exit.
 		 */
 		TAILQ_FOREACH_SAFE(p, &alloctail, listq, p_next) {
-			vm_page_unwire(p, PQ_NONE);
+			vm_page_unwire_noq(p);
 			vm_page_free(p); 
 		}
 		return (NULL);
@@ -1392,7 +1392,7 @@ pcpu_page_free(void *mem, vm_size_t size, uint8_t flags)
 	for (curva = sva; curva < sva + size; curva += PAGE_SIZE) {
 		paddr = pmap_kextract(curva);
 		m = PHYS_TO_VM_PAGE(paddr);
-		vm_page_unwire(m, PQ_NONE);
+		vm_page_unwire_noq(m);
 		vm_page_free(m);
 	}
 	pmap_qremove(sva, size >> PAGE_SHIFT);

sys/vm/vm_glue.c

@@ -408,7 +408,7 @@ vm_thread_stack_dispose(vm_object_t ksobj, vm_offset_t ks, int pages)
 		if (m == NULL)
 			panic("vm_thread_dispose: kstack already missing?");
 		vm_page_lock(m);
-		vm_page_unwire(m, PQ_NONE);
+		vm_page_unwire_noq(m);
 		vm_page_free(m);
 		vm_page_unlock(m);
 	}

sys/vm/vm_kern.c

@@ -586,7 +586,7 @@ _kmem_unback(vm_object_t object, vm_offset_t addr, vm_size_t size)
 #endif
 	for (; offset < end; offset += PAGE_SIZE, m = next) {
 		next = vm_page_next(m);
-		vm_page_unwire(m, PQ_NONE);
+		vm_page_unwire_noq(m);
 		vm_page_free(m);
 	}
 	VM_OBJECT_WUNLOCK(object);