From bde7aceab9887be15a5df51d3369ccc95cc2f241 Mon Sep 17 00:00:00 2001
From: Nikanth Karthikesan <knikanth@suse.de>
Date: Thu, 8 Apr 2010 21:39:31 +0200
Subject: loop: Update mtime when writing using aops

commit 02246c41171097ceab3246f6dc251ac89de6004b upstream.

Update mtime when writing to backing filesystem using the address space
operations write_begin and write_end.

Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/block/loop.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bd112c8c7bcd..1c21a3f23868 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -238,6 +238,8 @@ static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec,
 		if (ret)
 			goto fail;
 
+		file_update_time(file);
+
 		transfer_result = lo_do_transfer(lo, WRITE, page, offset,
 				bvec->bv_page, bv_offs, size, IV);
 		copied = size;
-- 
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