From: "Darrick J. Wong" Subject: [PATCH 5/6] ocfs2: Wait for page writeback to provide stable pages Date: Fri, 18 Jan 2013 17:13:08 -0800 Message-ID: <20130119011308.20902.44871.stgit@blackbox.djwong.org> References: <20130119011231.20902.55954.stgit@blackbox.djwong.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: martin.petersen@oracle.com, neilb@suse.de, Mark Fasheh , david@fromorbit.com, gnehzuil.liu@gmail.com, linux-kernel@vger.kernel.org, hch@infradead.org, linux-fsdevel@vger.kernel.org, adilger.kernel@dilger.ca, ocfs2-devel@oss.oracle.com, bharrosh@panasas.com, jlayton@samba.org, akpm@linux-foundation.org, linux-ext4@vger.kernel.org, hirofumi@mail.parknet.co.jp, Joel Becker 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 Return-path: In-Reply-To: <20130119011231.20902.55954.stgit@blackbox.djwong.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org When stable pages are required, we have to wait if the page is just going to disk and we want to modify it. Add proper callback to ocfs2_grab_pages_for_write(). CC: ocfs2-devel@oss.oracle.com CC: Joel Becker CC: Mark Fasheh From: Jan Kara Signed-off-by: Jan Kara Signed-off-by: Darrick J. Wong --- fs/ocfs2/aops.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 6577432..9796330 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1194,6 +1194,7 @@ static int ocfs2_grab_pages_for_write(struct address_space *mapping, goto out; } } + wait_for_stable_page(wc->w_pages[i]); if (index == target_index) wc->w_target_page = wc->w_pages[i];