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From: Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
To: Christoph Hellwig <hch@lst.de>
Cc: "linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"dm-devel@redhat.com" <dm-devel@redhat.com>,
	"jack@suse.czi" <jack@suse.czi>,
	"rdunlap@infradead.org" <rdunlap@infradead.org>,
	"sagi@grimberg.me" <sagi@grimberg.me>,
	"mingo@redhat.com" <mingo@redhat.com>,
	"rostedt@goodmis.org" <rostedt@goodmis.org>,
	"snitzer@redhat.com" <snitzer@redhat.com>,
	"agk@redhat.com" <agk@redhat.com>,
	"axboe@kernel.dk" <axboe@kernel.dk>,
	"paolo.valente@linaro.org" <paolo.valente@linaro.org>,
	"ming.lei@redhat.com" <ming.lei@redhat.com>,
	"bvanassche@acm.org" <bvanassche@acm.org>,
	"fangguoju@gmail.com" <fangguoju@gmail.com>,
	"colyli@suse.de" <colyli@suse.de>
Subject: Re: [PATCH 01/11] block: blktrace framework cleanup
Date: Wed, 1 Jul 2020 04:32:11 +0000	[thread overview]
Message-ID: <BYAPR04MB496556D53F75E6E2751799BE866C0@BYAPR04MB4965.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20200630051001.GA27033@lst.de

On 6/29/20 10:10 PM, Christoph Hellwig wrote:
> 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.
Okay, will change that.
> 
>> +		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..
> 
> 

Yeah thats is where I had difficulty, and when I tried to do it in one
patch it got complicated to review. I'll keep the first patch for the
q only and patch(s) for rest arguments as needed it easy to review that
way.


  reply	other threads:[~2020-07-01  4:32 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-29 23:43 [PATCH 00/10] block: blktrace framework cleanup Chaitanya Kulkarni
2020-06-29 23:43 ` [PATCH 01/11] " Chaitanya Kulkarni
2020-06-30  5:10   ` Christoph Hellwig
2020-07-01  4:32     ` Chaitanya Kulkarni [this message]
2020-06-29 23:43 ` [PATCH 02/11] block: rename block_bio_merge class to block_bio Chaitanya Kulkarni
2020-06-30  5:10   ` Christoph Hellwig
2020-07-01  4:33     ` Chaitanya Kulkarni
2020-06-29 23:43 ` [PATCH 03/11] block: use block_bio event class for bio_queue Chaitanya Kulkarni
2020-06-29 23:43 ` [PATCH 04/11] block: use block_bio event class for bio_bounce Chaitanya Kulkarni
2020-06-29 23:43 ` [PATCH 05/11] block: get rid of the trace rq insert wrapper Chaitanya Kulkarni
2020-06-30  5:11   ` Christoph Hellwig
2020-07-01  4:34     ` Chaitanya Kulkarni
2020-07-03 23:29   ` Chaitanya Kulkarni
2020-07-07  6:57     ` hch
2020-06-29 23:43 ` [PATCH 06/11] block: remove extra param for trace_block_getrq() Chaitanya Kulkarni
2020-06-29 23:43 ` [PATCH 07/11] block: get rid of blk_trace_request_get_cgid() Chaitanya Kulkarni
2020-06-30  5:12   ` Christoph Hellwig
2020-07-01  4:38     ` Chaitanya Kulkarni
2020-07-01  6:16       ` Christoph Hellwig
2020-07-01 21:06         ` Chaitanya Kulkarni
2020-06-29 23:43 ` [PATCH 08/11] block: fix the comments in the trace event block.h Chaitanya Kulkarni
2020-06-30  5:12   ` Christoph Hellwig
2020-06-29 23:43 ` [PATCH 09/11] block: remove unsed param in blk_fill_rwbs() Chaitanya Kulkarni
2020-06-30  5:12   ` Christoph Hellwig
2020-07-01  4:38     ` Chaitanya Kulkarni
2020-06-29 23:43 ` [PATCH 10/11] block: use block_bio class for getrq and sleeprq Chaitanya Kulkarni
2020-06-30  5:13   ` Christoph Hellwig
2020-07-01  4:45     ` Chaitanya Kulkarni
2020-07-01  6:18       ` Christoph Hellwig
2020-07-01 21:06         ` Chaitanya Kulkarni
2020-06-29 23:43 ` [PATCH 11/11] block: remove block_get_rq event class Chaitanya Kulkarni
2020-06-30  0:58 ` [PATCH 00/10] block: blktrace framework cleanup Steven Rostedt

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