[dm-devel] [PATCH] block: Add nr_bios to block_rq_remap tracepoint

Jens Axboe axboe at kernel.dk
Sat Sep 21 19:58:14 UTC 2013


On Tue, Sep 17 2013, Jun'ichi Nomura wrote:
> Adding the number of bios in a remapped request to 'block_rq_remap'
> tracepoint.
> 
> Request remapper clones bios in a request to track the completion
> status of each bio. So the number of bios can be useful information
> for investigation.
> 
> Related discussions:
>   http://www.redhat.com/archives/dm-devel/2013-August/msg00084.html
>   http://www.redhat.com/archives/dm-devel/2013-September/msg00024.html
> 
> Signed-off-by: Jun'ichi Nomura <j-nomura at ce.jp.nec.com>
> Acked-by: Mike Snitzer <snitzer at redhat.com>
> Cc: Jens Axboe <axboe at kernel.dk>

Thanks, added.

-- 
Jens Axboe




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