From 01b983c9fcfeea5774ca2df2e167b68c3c299278 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Tue, 19 Nov 2013 18:59:10 -0700
Subject: [PATCH] blk-mq: add blktrace insert event trace

We need it to make 'btt' from blktrace happy, otherwise
we are missing one state transition.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
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