From: Tejun Heo <tj@kernel.org>
Date: Fri, 11 Jan 2013 21:06:34 +0000 (-0800)
Subject: block: add @req to bio_{front|back}_merge tracepoints
X-Git-Tag: v3.9-rc1~44^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c1cf6bb02fda79b0a4b9bd121f6be6d4ce7a15a;p=pandora-kernel.git

block: add @req to bio_{front|back}_merge tracepoints

bio_{front|back}_merge tracepoints report a bio merging into an
existing request but didn't specify which request the bio is being
merged into.  Add @req to it.  This makes it impossible to share the
event template with block_bio_queue - split it out.

@req isn't used or exported to userland at this point and there is no
userland visible behavior change.  Later changes will make use of the
extra parameter.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

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