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Date: Tue, 14 Dec 2010 12:59:48 +0800
From: Wu Fengguang <fengguang.wu@intel.com>
To: "Yan, Zheng" <zheng.z.yan@linux.intel.com>,
        Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>, "Wu, Fengguang" <fengguang.wu@intel.com>,
        Christoph Hellwig <hch@lst.de>,
        Trond Myklebust <Trond.Myklebust@netapp.com>,
        Dave Chinner <david@fromorbit.com>, "Theodore Ts'o" <tytso@mit.edu>,
        Chris Mason <chris.mason@oracle.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>, Mel Gorman <mel@csn.ul.ie>,
        Rik van Riel <riel@redhat.com>,
        KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
        Greg Thelen <gthelen@google.com>, Minchan Kim <minchan.kim@gmail.com>,
        linux-mm <linux-mm@kvack.org>,
        "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 00/35] IO-less dirty throttling v4
Message-ID: <20101214045948.GA12454@localhost>
References: <20101213144646.341970461@intel.com>
 <AANLkTinFeu7LMaDFgUcP3r2oqVHE5bei3T5JTPGBNvS9@mail.gmail.com>
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On Tue, Dec 14, 2010 at 11:26:29AM +0800, Yan, Zheng wrote:
> got error "global_dirty_limits" [fs/nfs/nfs.ko] undefined! when
> compiling dirty-throttling-v4

Thanks! This should fix it. The fix will show up in the git tree after a while.

Thanks,
Fengguang
---
Subject: writeback: export global_dirty_limits() for NFS
Date: Tue Dec 14 12:55:18 CST 2010

"global_dirty_limits" [fs/nfs/nfs.ko] undefined!

Reported-by: Yan Zheng <zheng.z.yan@linux.intel.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
---
 mm/page-writeback.c |    1 +
 1 file changed, 1 insertion(+)

--- linux-next.orig/mm/page-writeback.c	2010-12-14 12:54:57.000000000 +0800
+++ linux-next/mm/page-writeback.c	2010-12-14 12:55:11.000000000 +0800
@@ -419,6 +419,7 @@ void global_dirty_limits(unsigned long *
 	*pbackground = background;
 	*pdirty = dirty;
 }
+EXPORT_SYMBOL_GPL(global_dirty_limits);
 
 /**
  * bdi_dirty_limit - @bdi's share of dirty throttling threshold