block: fixup block IO unplug trace call
authorJens Axboe <jaxboe@fusionio.com>
Tue, 12 Apr 2011 08:12:19 +0000 (10:12 +0200)
committerJens Axboe <jaxboe@fusionio.com>
Tue, 12 Apr 2011 08:12:19 +0000 (10:12 +0200)
It was removed with the on-stack plugging, readd it and track the
depth of requests added when flushing the plug.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

No differences found