[PATCH] loop: Update mtime when writing using aops

[Nikanth Karthikesan]

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

Signed-off-by: Nikanth Karthikesan <knikanth@xxxxxxx>

---

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index cb69929..8546d12 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -237,6 +237,8 @@ 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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