Re: [PATCH 01/11] block: blktrace framework cleanup

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On Mon, Jun 29, 2020 at 04:43:04PM -0700, Chaitanya Kulkarni wrote:
> This patch removes the extra variables from the trace events and
> overall kernel blktrace framework. The removed members can easily be
> extracted from the remaining argument which reduces the code
> significantly and allows us to optimize the several tracepoints like
> the next patch in the series.      

The subject sounds a litle strange, I'd rather say:

"block: remove superflous arguments from tracepoints"

The actual changes look good to me.

> +		trace_block_rq_insert(rq);
>  	}
>  
>  	spin_lock(&ctx->lock);
> @@ -2111,7 +2111,7 @@ blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
>  		goto queue_exit;
>  	}
>  
> -	trace_block_getrq(q, bio, bio->bi_opf);
> +	trace_block_getrq(bio, bio->bi_opf);

But now that you remove more than the q argument in some spots you
might remove the op one here as well.  Or limit the first patch to
just the queue argument..


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