[src/trunk]: src/sys/arch/arm/arm32 braces are your friends. use them.

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/489d974b2713
branches:  trunk
changeset: 795137:489d974b2713
user:      matt <matt%NetBSD.org@localhost>
date:      Wed Apr 02 13:26:22 2014 +0000

description:
braces are your friends.  use them.

diffstat:

 sys/arch/arm/arm32/pmap.c |  42 +++++++++++++++++++++++-------------------
 1 files changed, 23 insertions(+), 19 deletions(-)

diffs (90 lines):

diff -r 8af67152b820 -r 489d974b2713 sys/arch/arm/arm32/pmap.c
--- a/sys/arch/arm/arm32/pmap.c Wed Apr 02 12:36:05 2014 +0000
+++ b/sys/arch/arm/arm32/pmap.c Wed Apr 02 13:26:22 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.c,v 1.276 2014/04/02 12:36:05 matt Exp $  */
+/*     $NetBSD: pmap.c,v 1.277 2014/04/02 13:26:22 matt Exp $  */
 
 /*
  * Copyright 2003 Wasabi Systems, Inc.
@@ -216,7 +216,7 @@
 #include <arm/locore.h>
 //#include <arm/arm32/katelib.h>
 
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.276 2014/04/02 12:36:05 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.277 2014/04/02 13:26:22 matt Exp $");
 
 //#define PMAP_DEBUG
 #ifdef PMAP_DEBUG
@@ -3204,20 +3204,23 @@
                                            oflags);
                                }
 #endif
-                       } else
-                       pmap_release_page_lock(md);
-                       if ((pv = pool_get(&pmap_pv_pool, PR_NOWAIT)) == NULL){
-                               pmap_release_pmap_lock(pm);
-                               if ((flags & PMAP_CANFAIL) == 0)
-                                       panic("pmap_enter: no pv entries");
-
-                               if (pm != pmap_kernel())
-                                       pmap_free_l2_bucket(pm, l2b, 0);
-                               UVMHIST_LOG(maphist, "  <-- done (ENOMEM)",
-                                   0, 0, 0, 0);
-                               return (ENOMEM);
+                       } else {
+                               pmap_release_page_lock(md);
+                               pv = pool_get(&pmap_pv_pool, PR_NOWAIT);
+                               if (pv == NULL) {
+                                       pmap_release_pmap_lock(pm);
+                                       if ((flags & PMAP_CANFAIL) == 0)
+                                               panic("pmap_enter: "
+                                                   "no pv entries");
+
+                                       if (pm != pmap_kernel())
+                                               pmap_free_l2_bucket(pm, l2b, 0);
+                                       UVMHIST_LOG(maphist, "  <-- done (ENOMEM)",
+                                           0, 0, 0, 0);
+                                       return (ENOMEM);
+                               }
+                               pmap_acquire_page_lock(md);
                        }
-                       pmap_acquire_page_lock(md);
 
                        pmap_enter_pv(md, pa, pv, pm, va, nflags);
                }
@@ -3630,7 +3633,7 @@
        struct pv_entry *pv = NULL;
 #endif
 #endif
-       struct vm_page_md *md = VM_PAGE_TO_MD(pg);
+       struct vm_page_md *md = pg != NULL ? VM_PAGE_TO_MD(pg) : NULL;
 
        UVMHIST_FUNC(__func__);
 
@@ -3672,9 +3675,9 @@
                        KASSERT((omd->pvh_attrs & PVF_KMPAGE) == 0);
                        KASSERT((flags & PMAP_KMPAGE) == 0);
 #ifndef ARM_MMU_EXTENDED
-                       pmap_acquire_page_lock(md);
+                       pmap_acquire_page_lock(omd);
                        pv = pmap_kremove_pg(opg, va);
-                       pmap_release_page_lock(md);
+                       pmap_release_page_lock(omd);
 #endif
                }
 #endif
@@ -3756,11 +3759,12 @@
                        pool_put(&pmap_pv_pool, pv);
 #endif
        }
-
+       KASSERT(md == NULL || !pmap_page_locked_p(md));
        if (pmap_initialized) {
                UVMHIST_LOG(maphist, "  <-- done (ptep %p: %#x -> %#x)",
                    ptep, opte, npte, 0);
        }
+
 }
 
 void