From b17621fed6aa039387e35f9b4d34d98f213e5673 Mon Sep 17 00:00:00 2001
From: Wu Fengguang <fengguang.wu@gmail.com>
Date: Thu, 3 Dec 2009 13:54:25 +0100
Subject: writeback: introduce wbc.for_background

It will lower the flush priority for NFS, and maybe more in future.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
 fs/fs-writeback.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'fs/fs-writeback.c')

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 0306c8e7d6b..0793961f769 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -738,6 +738,7 @@ static long wb_writeback(struct bdi_writeback *wb,
 		.sync_mode		= args->sync_mode,
 		.older_than_this	= NULL,
 		.for_kupdate		= args->for_kupdate,
+		.for_background		= args->for_background,
 		.range_cyclic		= args->range_cyclic,
 	};
 	unsigned long oldest_jif;
-- 
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