From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755669Ab2JBAVc (ORCPT ); Mon, 1 Oct 2012 20:21:32 -0400 Received: from mail-gg0-f174.google.com ([209.85.161.174]:58171 "EHLO mail-gg0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753536Ab2JBAR7 (ORCPT ); Mon, 1 Oct 2012 20:17:59 -0400 From: Jeff Layton To: viro@ZenIV.linux.org.uk Cc: eparis@redhat.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-audit@redhat.com Subject: [PATCH v7 37/49] vfs: make fchmodat retry once on ESTALE errors Date: Mon, 1 Oct 2012 20:16:46 -0400 Message-Id: <1349137018-21948-38-git-send-email-jlayton@redhat.com> X-Mailer: git-send-email 1.7.11.4 In-Reply-To: <1349137018-21948-1-git-send-email-jlayton@redhat.com> References: <1349137018-21948-1-git-send-email-jlayton@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Jeff Layton --- fs/open.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/open.c b/fs/open.c index a015cb8..232cbfb 100644 --- a/fs/open.c +++ b/fs/open.c @@ -506,12 +506,17 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode { struct path path; int error; + unsigned int try = 0; + int lookup_flags = LOOKUP_FOLLOW; - error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path); - if (!error) { + do { + error = user_path_at(dfd, filename, lookup_flags, &path); + if (error) + break; error = chmod_common(&path, mode); path_put(&path); - } + lookup_flags |= LOOKUP_REVAL; + } while (retry_estale(error, try++)); return error; } -- 1.7.11.4