From: Boaz Harrosh <bharrosh@panasas.com>
To: Benny Halevy <bhalevy@panasas.com>,
Trond Myklebust <Trond.Myklebust@netapp.com>,
NFS list <linux-nfs@vger.kernel.org>,
open-osd <osd-dev@open-osd.org>
Cc: Benny Halevy <bhalevy@panasas.com>
Subject: [PATCH 03/23] pnfs: align layoutget requests on page boundaries
Date: Sun, 22 May 2011 19:47:46 +0300 [thread overview]
Message-ID: <1306082866-10703-1-git-send-email-bharrosh@panasas.com> (raw)
In-Reply-To: <4DD93D3E.9010909@panasas.com>
From: Benny Halevy <bhalevy@panasas.com>
---
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);
--
1.7.2.3
next prev parent reply other threads:[~2011-05-22 16:48 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-22 16:43 [PATCHSET V4 00/23 boaz] pnfs for 2.6.40 Boaz Harrosh
2011-05-22 16:47 ` [PATCH 01/23] pnfs: CB_NOTIFY_DEVICEID Boaz Harrosh
2011-05-22 16:47 ` [PATCH 02/23] pnfs: Use byte-range for layoutget Boaz Harrosh
2011-05-22 16:47 ` Boaz Harrosh [this message]
2011-05-22 16:48 ` [PATCH 04/23] pnfs: Use byte-range for cb_layoutrecall Boaz Harrosh
2011-05-22 16:48 ` [PATCH 05/23] pnfs: client stats Boaz Harrosh
2011-05-22 16:48 ` [PATCH 06/23] pnfs: resolve header dependency in pnfs.h Boaz Harrosh
2011-05-22 16:49 ` [PATCH 07/23] pnfs-obj: objlayoutdriver module skeleton Boaz Harrosh
2011-05-22 16:49 ` [PATCH 08/23] pnfs-obj: pnfs_osd XDR definitions Boaz Harrosh
2011-05-22 16:49 ` [PATCH 09/23] pnfs-obj: pnfs_osd XDR client implementation Boaz Harrosh
2011-05-22 16:50 ` [PATCH 10/23] pnfs-obj: decode layout, alloc/free lseg Boaz Harrosh
2011-05-22 16:50 ` [PATCH 11/23] pnfs: per mount layout driver private data Boaz Harrosh
2011-05-22 16:50 ` [PATCH 12/23] pnfs-obj: objio_osd device information retrieval and caching Boaz Harrosh
2011-05-22 16:51 ` [PATCH 13/23] pnfs: set/unset layoutdriver Boaz Harrosh
2011-05-22 16:51 ` [PATCH 14/23] pnfs: alloc and free layout_hdr layoutdriver methods Boaz Harrosh
2011-05-22 16:51 ` [PATCH 15/23] pnfs-obj: define per-mount and per-inode private structures Boaz Harrosh
2011-05-22 16:52 ` [PATCH 16/23] pnfs: support for non-rpc layout drivers Boaz Harrosh
2011-05-22 19:40 ` Benny Halevy
2011-05-22 23:25 ` Benny Halevy
2011-05-23 4:22 ` Boaz Harrosh
2011-05-23 14:54 ` Fred Isaman
2011-05-23 17:56 ` Boaz Harrosh
2011-05-22 16:52 ` [PATCH 17/23] pnfs-obj: osd raid engine read/write implementation Boaz Harrosh
2011-05-22 16:52 ` [PATCH 18/23] pnfs: layoutreturn Boaz Harrosh
2011-05-22 16:52 ` [PATCH 19/23] pnfs: layoutret_on_setattr Boaz Harrosh
2011-05-22 16:53 ` [PATCH 20/23] pnfs: encode_layoutreturn Boaz Harrosh
2011-05-22 16:53 ` [PATCH 21/23] pnfs-obj: report errors and .encode_layoutreturn Implementation Boaz Harrosh
2011-05-22 16:53 ` [PATCH 22/23] pnfs: encode_layoutcommit Boaz Harrosh
2011-05-22 16:54 ` [PATCH 23/23] pnfs-obj: objlayout_encode_layoutcommit implementation Boaz Harrosh
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