From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 12 Jan 2012 05:14:43 +0000 (+1030)
Subject: virtio: add debugging if driver doesn't kick.
X-Git-Tag: v3.3-rc1~85^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e93300b1afc7cd4fe1e741ceaf06714d060e88b8;p=pandora-kernel.git

virtio: add debugging if driver doesn't kick.

Under the existing #ifdef DEBUG, check that they don't have more than
1/10 of a second between an add_buf() and a
virtqueue_notify()/virtqueue_kick_prepare() call.

We could get false positives on a really busy system, but good for
development.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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