From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932619AbbIDHBO (ORCPT ); Fri, 4 Sep 2015 03:01:14 -0400 Received: from smtp.transmode.se ([31.15.61.139]:55615 "EHLO smtp.transmode.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932592AbbIDHBN (ORCPT ); Fri, 4 Sep 2015 03:01:13 -0400 From: Kenth Eriksson To: linux-kernel@vger.kernel.org, andi@firstfloor.org Cc: Kenth Eriksson Subject: [PATCH] Fix mmap error for perf data file. Not all file systems, e.g. JFFS2, support MAP_SHARED. Date: Fri, 4 Sep 2015 09:00:45 +0200 Message-Id: <1441350045-25360-1-git-send-email-kenth.eriksson@transmode.com> X-Mailer: git-send-email 2.3.6 In-Reply-To: <87d1xz49gj.fsf@tassilo.jf.intel.com> References: <87d1xz49gj.fsf@tassilo.jf.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Kenth Eriksson --- tools/perf/util/session.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 0c74012..c6617fe 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1338,11 +1338,10 @@ static int __perf_session__process_events(struct perf_session *session, memset(mmaps, 0, sizeof(mmaps)); mmap_prot = PROT_READ; - mmap_flags = MAP_SHARED; + mmap_flags = MAP_PRIVATE; if (session->header.needs_swap) { mmap_prot |= PROT_WRITE; - mmap_flags = MAP_PRIVATE; } remap: buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd, -- 2.3.6