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From: Jens Axboe <axboe@fb.com>
To: Christoph Hellwig <hch@lst.de>, Adrian Hunter <adrian.hunter@intel.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>, <linux-mmc@vger.kernel.org>,
	<linux-block@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] block: Fix secure erase
Date: Mon, 15 Aug 2016 12:16:30 -0600	[thread overview]
Message-ID: <0da0904a-9d46-e043-edec-8d0d34cf0714@fb.com> (raw)
In-Reply-To: <20160815181328.GA9696@lst.de>

On 08/15/2016 12:13 PM, Christoph Hellwig wrote:
>> --- a/block/elevator.c
>> +++ b/block/elevator.c
>> @@ -366,7 +366,10 @@ void elv_dispatch_sort(struct request_queue *q, struct request *rq)
>>  	list_for_each_prev(entry, &q->queue_head) {
>>  		struct request *pos = list_entry_rq(entry);
>>
>> -		if ((req_op(rq) == REQ_OP_DISCARD) != (req_op(pos) == REQ_OP_DISCARD))
>> +		if ((req_op(rq) == REQ_OP_DISCARD ||
>> +		     req_op(rq) == REQ_OP_SECURE_ERASE) !=
>> +		    (req_op(pos) == REQ_OP_DISCARD ||
>> +		     req_op(pos) == REQ_OP_SECURE_ERASE))
>>  			break;
>
> This really should be a:
>
> 	if (req_op(rq) != req_op(pos))
>
> I'l lleave it up to Jens if he wants that in this patch or not, otherwise
> I'll send an incremental patch.

Let's get a v2 with that fixed up, it makes a big readability
difference.

-- 
Jens Axboe

  reply	other threads:[~2016-08-15 18:16 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-11  8:43 [REGRESSION] Secure discard is broken Adrian Hunter
2016-08-11 14:05 ` Christoph Hellwig
2016-08-15 14:07   ` [PATCH] block: Fix secure erase Adrian Hunter
2016-08-15 16:43     ` Shaun Tancheff
2016-08-15 18:14       ` Christoph Hellwig
2016-08-16  7:20         ` Adrian Hunter
2016-08-17  0:52           ` Christoph Hellwig
2016-08-15 18:13     ` Christoph Hellwig
2016-08-15 18:16       ` Jens Axboe [this message]
2016-08-15 18:17         ` Christoph Hellwig
2016-08-16  7:59           ` [PATCH V2] " Adrian Hunter
2016-08-16 16:15             ` Christoph Hellwig
2016-08-19 11:52             ` Ulf Hansson
2016-08-19 15:14               ` Jens Axboe

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