From patchwork Sun May 22 16:47:46 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boaz Harrosh X-Patchwork-Id: 806692 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.3) with ESMTP id p4MGm6Uo016609 for ; Sun, 22 May 2011 16:48:06 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752287Ab1EVQsF (ORCPT ); Sun, 22 May 2011 12:48:05 -0400 Received: from daytona.panasas.com ([67.152.220.89]:38767 "EHLO daytona.panasas.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752261Ab1EVQsF (ORCPT ); Sun, 22 May 2011 12:48:05 -0400 Received: from fs2.bhalevy.com ([172.17.33.58]) by daytona.panasas.com with Microsoft SMTPSVC(6.0.3790.4675); Sun, 22 May 2011 12:48:04 -0400 From: Boaz Harrosh To: Benny Halevy , Trond Myklebust , NFS list , open-osd Cc: Benny Halevy Subject: [PATCH 03/23] pnfs: align layoutget requests on page boundaries Date: Sun, 22 May 2011 19:47:46 +0300 Message-Id: <1306082866-10703-1-git-send-email-bharrosh@panasas.com> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <4DD93D3E.9010909@panasas.com> References: <4DD93D3E.9010909@panasas.com> X-OriginalArrivalTime: 22 May 2011 16:48:04.0427 (UTC) FILETIME=[04FAA1B0:01CC18A0] 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 (demeter2.kernel.org [140.211.167.43]); Sun, 22 May 2011 16:48:06 +0000 (UTC) From: Benny Halevy --- fs/nfs/pnfs.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 15c8e48..bad146e 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -846,6 +846,7 @@ pnfs_update_layout(struct inode *ino, .offset = pos, .length = count, }; + unsigned pg_offset; struct nfs_inode *nfsi = NFS_I(ino); struct nfs_client *clp = NFS_SERVER(ino)->nfs_client; struct pnfs_layout_hdr *lo; @@ -895,6 +896,13 @@ pnfs_update_layout(struct inode *ino, spin_unlock(&clp->cl_lock); } + pg_offset = arg.offset & ~PAGE_CACHE_MASK; + if (pg_offset) { + arg.offset -= pg_offset; + arg.length += pg_offset; + } + arg.length = PAGE_CACHE_ALIGN(arg.length); + lseg = send_layoutget(lo, ctx, &arg); if (!lseg && first) { spin_lock(&clp->cl_lock);