Date: Sat, 23 May 2009 18:33:23 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r192658 - head/sys/mips/mips Message-ID: <200905231833.n4NIXN3x063530@svn.freebsd.org>
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Author: alc Date: Sat May 23 18:33:22 2009 New Revision: 192658 URL: http://svn.freebsd.org/changeset/base/192658 Log: When a page is mapped for write access on a read fault, the PTE should be configured to trap on a write access unless *all* of the page's dirty bits are set. Modified: head/sys/mips/mips/pmap.c Modified: head/sys/mips/mips/pmap.c ============================================================================== --- head/sys/mips/mips/pmap.c Sat May 23 18:25:11 2009 (r192657) +++ head/sys/mips/mips/pmap.c Sat May 23 18:33:22 2009 (r192658) @@ -3116,7 +3116,8 @@ init_pte_prot(vm_offset_t va, vm_page_t */ rw = PTE_RWPAGE; vm_page_dirty(m); - } else if ((m->md.pv_flags & PV_TABLE_MOD) || m->dirty) + } else if ((m->md.pv_flags & PV_TABLE_MOD) || + m->dirty == VM_PAGE_BITS_ALL) rw = PTE_RWPAGE; else rw = PTE_CWPAGE;
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