diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c
index fd23777a0e53..e138cbc97ebb 100644
--- a/sys/amd64/amd64/pmap.c
+++ b/sys/amd64/amd64/pmap.c
@@ -3187,10 +3187,6 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_prot_t access, vm_page_t m,
 		if (mpte)
 			mpte->wire_count--;
 
-		/*
-		 * We might be turning off write access to the page,
-		 * so we go ahead and sense modify status.
-		 */
 		if (origpte & PG_MANAGED) {
 			om = m;
 			pa |= PG_MANAGED;
diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c
index 9dbab4e40130..1316eb8b9b51 100644
--- a/sys/i386/i386/pmap.c
+++ b/sys/i386/i386/pmap.c
@@ -3323,10 +3323,6 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_prot_t access, vm_page_t m,
 		if (mpte)
 			mpte->wire_count--;
 
-		/*
-		 * We might be turning off write access to the page,
-		 * so we go ahead and sense modify status.
-		 */
 		if (origpte & PG_MANAGED) {
 			om = m;
 			pa |= PG_MANAGED;
diff --git a/sys/i386/xen/pmap.c b/sys/i386/xen/pmap.c
index 67bbd27ccebd..1a3a9d542462 100644
--- a/sys/i386/xen/pmap.c
+++ b/sys/i386/xen/pmap.c
@@ -2737,10 +2737,6 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_prot_t access, vm_page_t m,
 		if (mpte)
 			mpte->wire_count--;
 
-		/*
-		 * We might be turning off write access to the page,
-		 * so we go ahead and sense modify status.
-		 */
 		if (origpte & PG_MANAGED) {
 			om = m;
 			pa |= PG_MANAGED;
diff --git a/sys/mips/mips/pmap.c b/sys/mips/mips/pmap.c
index 54824a4f91ba..523ec8bff21c 100644
--- a/sys/mips/mips/pmap.c
+++ b/sys/mips/mips/pmap.c
@@ -1801,10 +1801,6 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_prot_t access, vm_page_t m,
 		if (mpte)
 			mpte->wire_count--;
 
-		/*
-		 * We might be turning off write access to the page, so we
-		 * go ahead and sense modify status.
-		 */
 		if (page_is_managed(opa)) {
 			om = m;
 		}
diff --git a/sys/sun4v/sun4v/pmap.c b/sys/sun4v/sun4v/pmap.c
index 8044048ed2ce..48cc81c8e1a0 100644
--- a/sys/sun4v/sun4v/pmap.c
+++ b/sys/sun4v/sun4v/pmap.c
@@ -1133,10 +1133,6 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_prot_t access, vm_page_t m,
 		else if (!wired && (otte_data & VTD_WIRED))
 			pmap->pm_stats.wired_count--;
 
-		/*
-		 * We might be turning off write access to the page,
-		 * so we go ahead and sense modify status.
-		 */
 		if (otte_data & VTD_MANAGED) {
 			om = m;
 			tte_data |= VTD_MANAGED;