Date: Thu, 12 Sep 2013 20:46:33 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r255497 - head/sys/vm Message-ID: <201309122046.r8CKkXw4002019@svn.freebsd.org>
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Author: jhb Date: Thu Sep 12 20:46:32 2013 New Revision: 255497 URL: http://svnweb.freebsd.org/changeset/base/255497 Log: Fix an off-by-one error when populating mincore(2) entries for skipped entries. lastvecindex references the last valid byte, so the new bytes should come after it. Approved by: re (kib) MFC after: 1 week Modified: head/sys/vm/vm_mmap.c Modified: head/sys/vm/vm_mmap.c ============================================================================== --- head/sys/vm/vm_mmap.c Thu Sep 12 19:52:23 2013 (r255496) +++ head/sys/vm/vm_mmap.c Thu Sep 12 20:46:32 2013 (r255497) @@ -984,12 +984,12 @@ RestartScan: * the byte vector is zeroed for those skipped entries. */ while ((lastvecindex + 1) < vecindex) { + ++lastvecindex; error = subyte(vec + lastvecindex, 0); if (error) { error = EFAULT; goto done2; } - ++lastvecindex; } /* @@ -1025,12 +1025,12 @@ RestartScan: */ vecindex = OFF_TO_IDX(end - first_addr); while ((lastvecindex + 1) < vecindex) { + ++lastvecindex; error = subyte(vec + lastvecindex, 0); if (error) { error = EFAULT; goto done2; } - ++lastvecindex; } /*
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