From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756150Ab3ASBO6 (ORCPT ); Fri, 18 Jan 2013 20:14:58 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:37191 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755647Ab3ASBOz (ORCPT ); Fri, 18 Jan 2013 20:14:55 -0500 Subject: [PATCH 3/6] 9pfs: Fix filesystem to wait for stable page writeback To: axboe@kernel.dk, lucho@ionkov.net, jack@suse.cz, darrick.wong@oracle.com, ericvh@gmail.com, viro@zeniv.linux.org.uk, rminnich@sandia.gov, tytso@mit.edu From: "Darrick J. Wong" Cc: martin.petersen@oracle.com, neilb@suse.de, david@fromorbit.com, gnehzuil.liu@gmail.com, linux-kernel@vger.kernel.org, hch@infradead.org, linux-fsdevel@vger.kernel.org, adilger.kernel@dilger.ca, bharrosh@panasas.com, jlayton@samba.org, akpm@linux-foundation.org, linux-ext4@vger.kernel.org, hirofumi@mail.parknet.co.jp Date: Fri, 18 Jan 2013 17:12:53 -0800 Message-ID: <20130119011253.20902.38148.stgit@blackbox.djwong.org> In-Reply-To: <20130119011231.20902.55954.stgit@blackbox.djwong.org> References: <20130119011231.20902.55954.stgit@blackbox.djwong.org> User-Agent: StGit/0.15 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Source-IP: ucsinet21.oracle.com [156.151.31.93] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix up the ->page_mkwrite handler to provide stable page writes if necessary. Signed-off-by: Darrick J. Wong --- fs/9p/vfs_file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index c2483e9..357260b 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -620,6 +620,7 @@ v9fs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) lock_page(page); if (page->mapping != inode->i_mapping) goto out_unlock; + wait_for_stable_page(page); return VM_FAULT_LOCKED; out_unlock: