linux-kernel - Re: [PATCH V5 00/30] loop: Issue O_DIRECT aio using bio

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Date:	Fri, 18 Jan 2013 16:33:02 -0600
From:	Dave Kleikamp <dave.kleikamp@...cle.com>
To:	Jeff Moyer <jmoyer@...hat.com>
CC:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Zach Brown <zab@...bo.net>,
	"Maxim V. Patlasov" <mpatlasov@...allels.com>
Subject: Re: [PATCH V5 00/30] loop: Issue O_DIRECT aio using bio_vec

On 01/18/2013 03:48 PM, Jeff Moyer wrote:
> Dave Kleikamp <dave.kleikamp@...cle.com> writes:
> 
>> On 01/18/2013 11:56 AM, Jeff Moyer wrote:
>>> Jeff Moyer <jmoyer@...hat.com> writes:
>>>
>>>> ./check -g aio
>>>>
>>>> and here is the summary:
>>>>
>>>> Ran: 112 113 198 207 208 209 210 211 212 239 240
>>>> Failures: 112 198 207 239 240
>>>> Failed 5 of 11 tests
>>>>
>>>> To be fair, I have not yet run this on a kernel without your changes.
>>>
>>> I re-ran the same test against a vanilla 3.8.0-rc4 kernel and it passed:
>>>
>>> Ran: 112 113 198 207 208 209 210 211 212 239 240
>>> Passed all 11 tests
>>>
>>> I'll start digging into the failures.
>>
>> Thanks, I'll take a look at it too.
> 
> Note that the failures occur on regular block devices, too;  this isn't
> restricted to loop.  The fix I mentioned in reply to patch 17 actually
> fixes all of the failures reported in the aio group.  I'm going to do
> some more thorough testing over the weekend.

Thanks much. I'll definitely add this to my testing.

Shaggy

> 
> Cheers,
> Jeff
> 
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