From patchwork Tue Jan 15 05:43:20 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [6/6] ubifs: Wait for page writeback to provide stable pages Date: Mon, 14 Jan 2013 19:43:20 -0000 From: "Darrick J. Wong" X-Patchwork-Id: 211997 Message-Id: <20130115054320.1563.54829.stgit@blackbox.djwong.org> To: axboe@kernel.dk, lucho@ionkov.net, jack@suse.cz, darrick.wong@oracle.com, ericvh@gmail.com, tytso@mit.edu, viro@zeniv.linux.org.uk, rminnich@sandia.gov Cc: martin.petersen@oracle.com, Artem Bityutskiy , neilb@suse.de, linux-kernel@vger.kernel.org, david@fromorbit.com, gnehzuil.liu@gmail.com, Adrian Hunter , hch@infradead.org, jlayton@samba.org, adilger.kernel@dilger.ca, bharrosh@panasas.com, linux-fsdevel@vger.kernel.org, linux-mtd@lists.infradead.org, linux-ext4@vger.kernel.org, hirofumi@mail.parknet.co.jp 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 ubifs_vm_page_mkwrite(). CC: Artem Bityutskiy From: Jan Kara CC: Adrian Hunter CC: linux-mtd@lists.infradead.org Signed-off-by: Jan Kara --- fs/ubifs/file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index 5bc7781..4f6493c 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -1522,6 +1522,7 @@ static int ubifs_vm_page_mkwrite(struct vm_area_struct *vma, ubifs_release_dirty_inode_budget(c, ui); } + wait_for_stable_page(page); unlock_page(page); return 0;