From patchwork Sun Jun 12 23:45:00 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jim Rees X-Patchwork-Id: 873552 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.4) with ESMTP id p5CNhqAF007930 for ; Sun, 12 Jun 2011 23:45:11 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754707Ab1FLXpD (ORCPT ); Sun, 12 Jun 2011 19:45:03 -0400 Received: from int-mailstore01.merit.edu ([207.75.116.232]:45703 "EHLO int-mailstore01.merit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754708Ab1FLXpC (ORCPT ); Sun, 12 Jun 2011 19:45:02 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by int-mailstore01.merit.edu (Postfix) with ESMTP id 229BB308EFBE; Sun, 12 Jun 2011 19:45:02 -0400 (EDT) X-Virus-Scanned: amavisd-new at int-mailstore01.merit.edu Received: from int-mailstore01.merit.edu ([127.0.0.1]) by localhost (int-mailstore01.merit.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id z-MD9nnhrNgp; Sun, 12 Jun 2011 19:45:01 -0400 (EDT) Received: from merit.edu (74-126-0-171.static.123.net [74.126.0.171]) by int-mailstore01.merit.edu (Postfix) with ESMTPSA id 8685C3084FE6; Sun, 12 Jun 2011 19:45:01 -0400 (EDT) X-Mailbox-Line: From eef50878b5052d94da20ea69b4f5c935122f8611 Mon Sep 17 00:00:00 2001 Message-Id: In-Reply-To: References: Date: Sun, 12 Jun 2011 19:45:00 -0400 Subject: [PATCH 29/34] pnfsblock: bl_write_pagelist support functions From: Jim Rees To: linux-nfs@vger.kernel.org Cc: peter honeyman Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Sun, 12 Jun 2011 23:45:11 +0000 (UTC) From: Fred Isaman [pnfsblock: SQUASHME: adjust to API change] Signed-off-by: Fred Isaman [pnfsblock: fixup blksize alignment in bl_setup_layoutcommit] Signed-off-by: Benny Halevy --- fs/nfs/blocklayout/blocklayout.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index a40616b..9361e5b 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -70,6 +70,19 @@ static int is_hole(struct pnfs_block_extent *be, sector_t isect) return !is_sector_initialized(be->be_inval, isect); } +/* Given the be associated with isect, determine if page data can be + * written to disk. + */ +static int is_writable(struct pnfs_block_extent *be, sector_t isect) +{ + if (be->be_state == PNFS_BLOCK_READWRITE_DATA) + return 1; + else if (be->be_state != PNFS_BLOCK_INVALID_DATA) + return 0; + else + return is_sector_initialized(be->be_inval, isect); +} + static int dont_like_caller(struct nfs_page *req) {