o Don't set PG_MAPPED or PG_WRITEABLE when a page is mapped

   using pmap_kenter() or pmap_qenter().
 o Use VM_ALLOC_WIRED in pmap_new_thread().

5 files changed, 10 insertions, 39 deletions

diff --git a/sys/alpha/alpha/pmap.c b/sys/alpha/alpha/pmap.c
index 1f7c036..5f7c85e 100644
--- a/sys/alpha/alpha/pmap.c
+++ b/sys/alpha/alpha/pmap.c
@@ -949,13 +949,8 @@ pmap_new_thread(struct thread *td)
 		/*
 		 * Get a kernel stack page
 		 */
-		m = vm_page_grab(ksobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
-
-		/*
-		 * Wire the page
-		 */
-		m->wire_count++;
-		cnt.v_wire_count++;
+		m = vm_page_grab(ksobj, i,
+		    VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
 
 		/*
 		 * Enter the page into the kernel address space.
@@ -968,7 +963,6 @@ pmap_new_thread(struct thread *td)
 
 		vm_page_wakeup(m);
 		vm_page_flag_clear(m, PG_ZERO);
-		vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
 		m->valid = VM_PAGE_BITS_ALL;
 	}
 }
@@ -1073,7 +1067,6 @@ pmap_swapin_thread(td)
 		vm_page_lock_queues();
 		vm_page_wire(m);
 		vm_page_wakeup(m);
-		vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
 		vm_page_unlock_queues();
 	}
 
diff --git a/sys/powerpc/aim/mmu_oea.c b/sys/powerpc/aim/mmu_oea.c
index 789f40b..8e2fa7f 100644
--- a/sys/powerpc/aim/mmu_oea.c
+++ b/sys/powerpc/aim/mmu_oea.c
@@ -1532,12 +1532,8 @@ pmap_new_thread(struct thread *td)
 		/*
 		 * Get a kernel stack page.
 		 */
-		m = vm_page_grab(ksobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
-
-		/*
-		 * Wire the page.
-		 */
-		m->wire_count++;
+		m = vm_page_grab(ksobj, i,
+		    VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
 
 		/*
 		 * Enter the page into the kernel address space.
@@ -1546,7 +1542,6 @@ pmap_new_thread(struct thread *td)
 
 		vm_page_wakeup(m);
 		vm_page_flag_clear(m, PG_ZERO);
-		vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
 		m->valid = VM_PAGE_BITS_ALL;
 	}
 }
diff --git a/sys/powerpc/powerpc/mmu_oea.c b/sys/powerpc/powerpc/mmu_oea.c
index 789f40b..8e2fa7f 100644
--- a/sys/powerpc/powerpc/mmu_oea.c
+++ b/sys/powerpc/powerpc/mmu_oea.c
@@ -1532,12 +1532,8 @@ pmap_new_thread(struct thread *td)
 		/*
 		 * Get a kernel stack page.
 		 */
-		m = vm_page_grab(ksobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
-
-		/*
-		 * Wire the page.
-		 */
-		m->wire_count++;
+		m = vm_page_grab(ksobj, i,
+		    VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
 
 		/*
 		 * Enter the page into the kernel address space.
@@ -1546,7 +1542,6 @@ pmap_new_thread(struct thread *td)
 
 		vm_page_wakeup(m);
 		vm_page_flag_clear(m, PG_ZERO);
-		vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
 		m->valid = VM_PAGE_BITS_ALL;
 	}
 }
diff --git a/sys/powerpc/powerpc/pmap.c b/sys/powerpc/powerpc/pmap.c
index 789f40b..8e2fa7f 100644
--- a/sys/powerpc/powerpc/pmap.c
+++ b/sys/powerpc/powerpc/pmap.c
@@ -1532,12 +1532,8 @@ pmap_new_thread(struct thread *td)
 		/*
 		 * Get a kernel stack page.
 		 */
-		m = vm_page_grab(ksobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
-
-		/*
-		 * Wire the page.
-		 */
-		m->wire_count++;
+		m = vm_page_grab(ksobj, i,
+		    VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
 
 		/*
 		 * Enter the page into the kernel address space.
@@ -1546,7 +1542,6 @@ pmap_new_thread(struct thread *td)
 
 		vm_page_wakeup(m);
 		vm_page_flag_clear(m, PG_ZERO);
-		vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
 		m->valid = VM_PAGE_BITS_ALL;
 	}
 }
diff --git a/sys/sparc64/sparc64/pmap.c b/sys/sparc64/sparc64/pmap.c
index 2a31f6b..73391ec 100644
--- a/sys/sparc64/sparc64/pmap.c
+++ b/sys/sparc64/sparc64/pmap.c
@@ -948,18 +948,12 @@ pmap_new_thread(struct thread *td)
 		/*
 		 * Get a kernel stack page.
 		 */
-		m = vm_page_grab(ksobj, i, VM_ALLOC_NORMAL | VM_ALLOC_RETRY);
+		m = vm_page_grab(ksobj, i,
+		    VM_ALLOC_NORMAL | VM_ALLOC_RETRY | VM_ALLOC_WIRED);
 		ma[i] = m;
 
-		/*
-		 * Wire the page.
-		 */
-		m->wire_count++;
-		cnt.v_wire_count++;
-
 		vm_page_wakeup(m);
 		vm_page_flag_clear(m, PG_ZERO);
-		vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
 		m->valid = VM_PAGE_BITS_ALL;
 	}
 
@@ -1052,7 +1046,6 @@ pmap_swapin_thread(struct thread *td)
 		vm_page_lock_queues();
 		vm_page_wire(m);
 		vm_page_wakeup(m);
-		vm_page_flag_set(m, PG_MAPPED | PG_WRITEABLE);
 		vm_page_unlock_queues();
 	}
 	pmap_qenter(ks, ma, KSTACK_PAGES);