From d7fb120774f062ce7db439863ab5d4190d6f989c Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 6 Oct 2008 20:08:56 -0400
Subject: [PATCH] NFS: Don't use range_cyclic for data integrity syncs

It is more efficient to write linearly starting from the beginning of the
file.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/write.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 3229e217c773..9f9845859fc1 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1427,8 +1427,9 @@ static int nfs_write_mapping(struct address_space *mapping, int how)
 		.bdi = mapping->backing_dev_info,
 		.sync_mode = WB_SYNC_NONE,
 		.nr_to_write = LONG_MAX,
+		.range_start = 0,
+		.range_end = LLONG_MAX,
 		.for_writepages = 1,
-		.range_cyclic = 1,
 	};
 	int ret;