linux-kernel - Re: [PATCH 2/3] kcov: prefault the kcov

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Message-ID: <ed196752-fd87-1034-42cf-f62f8bae401d@virtuozzo.com>
Date:   Fri, 4 May 2018 17:42:57 +0300
From:   Andrey Ryabinin <aryabinin@...tuozzo.com>
To:     Mark Rutland <mark.rutland@....com>
Cc:     linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        dvyukov@...gle.com, mingo@...hat.com, peterz@...radead.org
Subject: Re: [PATCH 2/3] kcov: prefault the kcov_area



On 05/04/2018 05:38 PM, Mark Rutland wrote:
> On Fri, May 04, 2018 at 05:36:49PM +0300, Andrey Ryabinin wrote:
>>
>>
>> On 05/04/2018 04:55 PM, Mark Rutland wrote:
>>
>>>  
>>> +static void kcov_fault_in_area(struct kcov *kcov)
>>> +{
>>> +	unsigned long stride = PAGE_SIZE / sizeof(unsigned long);
>>> +	unsigned long *area = kcov->area;
>>> +	unsigned long offset;
>>> +
>>> +	for (offset = 0; offset < kcov->size; offset += stride) {
>>> +		READ_ONCE(area[offset]);
>>> +	}
>>
>> Usually we don't use {} for a single statement blocks.
>>
>>> +}
>>> +
> 
> I'll remove the braces.
> 
> Can I consider that an ack, otherwise? :)

Yes, ack for all 3 patches.


> 
> Thanks,
> Mark.
>