Module Name: src Committed By: hannken Date: Fri Jan 25 17:12:33 UTC 2013
Modified Files: src/sys/arch/sparc64/sparc64: pmap.c Log Message: Update the DEBUG section at the tail of pmap_clear_modify(). Nothing prevents page modification after the modify bit was cleared but before the DEBUG section checks pmap_is_modified(), so remove this check. For the same reason "modified" and "changed" may differ, so only check "modified" implies "changed" here. Ok: Matthew Green <m...@netbsd.org> To generate a diff of this commit: cvs rdiff -u -r1.279 -r1.280 src/sys/arch/sparc64/sparc64/pmap.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/sparc64/sparc64/pmap.c diff -u src/sys/arch/sparc64/sparc64/pmap.c:1.279 src/sys/arch/sparc64/sparc64/pmap.c:1.280 --- src/sys/arch/sparc64/sparc64/pmap.c:1.279 Thu Jan 3 09:40:55 2013 +++ src/sys/arch/sparc64/sparc64/pmap.c Fri Jan 25 17:12:33 2013 @@ -1,4 +1,4 @@ -/* $NetBSD: pmap.c,v 1.279 2013/01/03 09:40:55 martin Exp $ */ +/* $NetBSD: pmap.c,v 1.280 2013/01/25 17:12:33 hannken Exp $ */ /* * * Copyright (C) 1996-1999 Eduardo Horvath. @@ -26,7 +26,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.279 2013/01/03 09:40:55 martin Exp $"); +__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.280 2013/01/25 17:12:33 hannken Exp $"); #undef NO_VCACHE /* Don't forget the locked TLB in dostart */ #define HWREF @@ -2577,17 +2577,13 @@ pmap_clear_modify(struct vm_page *pg) pv_check(); mutex_exit(&pmap_lock); #ifdef DEBUG - if (pmap_is_modified(pg)) { - printf("pmap_clear_modify(): %p still modified!\n", pg); - Debugger(); - } DPRINTF(PDB_CHANGEPROT|PDB_REF, ("pmap_clear_modify: pg %p %s\n", pg, (changed ? "was modified" : "was not modified"))); - if (modified != changed) { + if (modified && modified != changed) { printf("pmap_clear_modify: modified %d changed %d\n", modified, changed); Debugger(); - } else return (modified); + } #endif return (changed); }