Return-Path: Received: from merit-proxy01.merit.edu ([207.75.116.193]:48213 "EHLO merit-proxy01.merit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754390Ab1FNCdP (ORCPT ); Mon, 13 Jun 2011 22:33:15 -0400 Message-Id: <7abae6a47d5750528e8b91e364ab58eedadda97a.1308017749.git.rees@umich.edu> In-Reply-To: References: Subject: [PATCH 29/33] pnfsblock: bl_write_pagelist support functions To: Benny Halevy Cc: linux-nfs@vger.kernel.org, peter honeyman Date: Mon, 13 Jun 2011 22:33:13 -0400 From: Jim Rees Sender: linux-nfs-owner@vger.kernel.org List-ID: Content-Type: text/plain MIME-Version: 1.0 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 cbf74d8..01fe089 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) { -- 1.7.4.1