From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-gh0-f174.google.com ([209.85.160.174]:65208 "EHLO mail-gh0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932963Ab2KEPWw (ORCPT ); Mon, 5 Nov 2012 10:22:52 -0500 Received: by mail-gh0-f174.google.com with SMTP id g15so1012621ghb.19 for ; Mon, 05 Nov 2012 07:22:52 -0800 (PST) From: Jeff Layton To: viro@zeniv.linux.org.uk Cc: linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, michael.brantley@deshaw.com, hch@infradead.org, miklos@szeredi.hu, pstaubach@exagrid.com Subject: [PATCH v9 17/34] vfs: make fchmodat retry once on ESTALE errors Date: Mon, 5 Nov 2012 10:21:56 -0500 Message-Id: <1352128933-28526-18-git-send-email-jlayton@redhat.com> In-Reply-To: <1352128933-28526-1-git-send-email-jlayton@redhat.com> References: <1352128933-28526-1-git-send-email-jlayton@redhat.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: 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 a1331f1..06f04bd 100644 --- a/fs/open.c +++ b/fs/open.c @@ -503,12 +503,17 @@ 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; } -- 1.7.11.7