From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wu Fengguang <fengguang.wu@intel.com>
Subject: [PATCH 43/47] nfs: dont change wbc->nr_to_write in write_inode()
Date: Mon, 13 Dec 2010 14:43:32 +0800
Message-ID: <20101213064842.310150037@intel.com>
References: <20101213064249.648862451@intel.com>
Cc: Jan Kara <jack@suse.cz>,
 Trond Myklebust <Trond.Myklebust@netapp.com>,
 Wu Fengguang <fengguang.wu@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Return-path: <owner-linux-mm@kvack.org>
CC: Christoph Hellwig <hch@lst.de>
CC: Dave Chinner <david@fromorbit.com>
CC: Theodore Ts'o <tytso@mit.edu>
CC: Chris Mason <chris.mason@oracle.com>
CC: Peter Zijlstra <a.p.zijlstra@chello.nl>
CC: Mel Gorman <mel@csn.ul.ie>
CC: Rik van Riel <riel@redhat.com>
CC: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
CC: Greg Thelen <gthelen@google.com>
CC: Minchan Kim <minchan.kim@gmail.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: <linux-fsdevel@vger.kernel.org>
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Content-Disposition: inline; filename=writeback-nfs-commit-remove-nr_to_write.patch
Sender: owner-linux-mm@kvack.org
List-Id: linux-fsdevel.vger.kernel.org

It's introduced in commit 420e3646 ("NFS: Reduce the number of
unnecessary COMMIT calls") and seems not necessary.

CC: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
 fs/nfs/write.c |    9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

--- linux-next.orig/fs/nfs/write.c	2010-12-09 12:20:20.000000000 +0800
+++ linux-next/fs/nfs/write.c	2010-12-09 12:20:30.000000000 +0800
@@ -1557,15 +1557,8 @@ static int nfs_commit_unstable_pages(str
 	}
 
 	ret = nfs_commit_inode(inode, flags);
-	if (ret >= 0) {
-		if (wbc->sync_mode == WB_SYNC_NONE) {
-			if (ret < wbc->nr_to_write)
-				wbc->nr_to_write -= ret;
-			else
-				wbc->nr_to_write = 0;
-		}
+	if (ret >= 0)
 		return 0;
-	}
 out_mark_dirty:
 	__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
 	return ret;


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