Re: [PATCH 1/2] NFSv41: fix DIO write_io calculation

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On Thu, Aug 9, 2012 at 10:25 PM, Myklebust, Trond
<Trond.Myklebust@xxxxxxxxxx> wrote:
> On Thu, 2012-08-09 at 10:36 +0800, Peng Tao wrote:
>> On Thu, Aug 9, 2012 at 3:03 AM, Myklebust, Trond
>> <Trond.Myklebust@xxxxxxxxxx> wrote:
>> > On Wed, 2012-08-08 at 09:49 +0800, Peng Tao wrote:
>> >> pnfs_within_mdsthreshold() is called inside pg_init. We need
>> >> to set read_io/write_io before that.
>> >
>> > Why?
>> If we don't set read_io/write_io before calling pg_init, we fail
>> pnfs_within_mdsthreshold() and IO goes to MDS.
>> A simple test case:
>> dd if=foo of=/mnt/pnfs/bar bs=10M count=1 oflag=direct
>>
>
> My point was that this explanation needs to go into the changelog of the
> commit.
OK. Will resend the patch with proper changelog.

-- 
Thanks,
Tao
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