linux-kernel - Re: [PATCH V6 00/30] loop: Issue O_DIRECT aio using bio

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Date:	Wed, 30 Jan 2013 14:23:17 -0500
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Dave Kleikamp <dave.kleikamp@...cle.com>
Cc:	Alexander Viro <viro@...iv.linux.org.uk>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Zach Brown <zab@...bo.net>,
	"Maxim V. Patlasov" <mpatlasov@...allels.com>
Subject: Re: [PATCH V6 00/30] loop: Issue O_DIRECT aio using bio_vec

Dave Kleikamp <dave.kleikamp@...cle.com> writes:

> On 01/29/2013 12:42 PM, Jeff Moyer wrote:
>> Dave Kleikamp <dave.kleikamp@...cle.com> writes:
>> 
>>> Al,
>>> I'd like to push this patchset to linux-next. Would you like to pull it
>>> into your vfs tree, would you rather I submitted it separately, or do
>>> you have any issues with it before including it?
>> 
>> I'm still chasing one regression in this patchset.  If you use the ext4
>> driver for ext2 file systems, and you run the libaio test harness, then
>> you will be able to successfully write beyond the maximum file size in a
>> file (see test case 8).
>
> I found the problem. iov_iter_shorten() wasn't setting i->count to the new
> value.
>
> This fixes it. I'll fix the patchset tomorrow.

I just re-ran the test, and I can confirm it fixed it as well.

Thanks!
Jeff
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