loop: Update mtime when writing using aops

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>

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bd112c8..1c21a3f 100644 (file)
--- 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;