From cf655d953422c846558a320ac9b3c8e659b68275 Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@canonical.com>
Date: Wed, 31 Dec 2014 13:22:59 +0000
Subject: [PATCH] block: loop: introduce lo_discard() and lo_req_flush()

No behaviour change, just move the handling for REQ_DISCARD
and REQ_FLUSH in these two functions.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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