From owner-svn-src-head@freebsd.org Wed Dec 4 19:46:49 2019 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 28D851AD158; Wed, 4 Dec 2019 19:46:49 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47Sq9j0G2Rz4HYW; Wed, 4 Dec 2019 19:46:49 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id DBE7A54AC; Wed, 4 Dec 2019 19:46:48 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id xB4Jkmg1053009; Wed, 4 Dec 2019 19:46:48 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id xB4Jkmxm053008; Wed, 4 Dec 2019 19:46:48 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201912041946.xB4Jkmxm053008@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Wed, 4 Dec 2019 19:46:48 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r355399 - head/sys/vm X-SVN-Group: head X-SVN-Commit-Author: markj X-SVN-Commit-Paths: head/sys/vm X-SVN-Commit-Revision: 355399 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Dec 2019 19:46:49 -0000 Author: markj Date: Wed Dec 4 19:46:48 2019 New Revision: 355399 URL: https://svnweb.freebsd.org/changeset/base/355399 Log: Fix an off-by-one error in vm_map_pmap_enter(). If the starting pindex is equal to object->size, there is nothing to do. This was harmless since the rest of vm_map_pmap_enter() has no effect when psize == 0. Submitted by: Wuyang Chung Reviewed by: alc, dougm, kib MFC after: 1 week Github PR: https://github.com/freebsd/freebsd/pull/417 Differential Revision: https://reviews.freebsd.org/D22678 Modified: head/sys/vm/vm_map.c Modified: head/sys/vm/vm_map.c ============================================================================== --- head/sys/vm/vm_map.c Wed Dec 4 18:40:05 2019 (r355398) +++ head/sys/vm/vm_map.c Wed Dec 4 19:46:48 2019 (r355399) @@ -2467,7 +2467,7 @@ vm_map_pmap_enter(vm_map_t map, vm_offset_t addr, vm_p psize = atop(size); if (psize + pindex > object->size) { - if (object->size < pindex) { + if (pindex >= object->size) { VM_OBJECT_RUNLOCK(object); return; }