linux-kernel - Re: [RFC PATCH] nfs: Support posix_fadvise(POSIX_FADV

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Message-ID: <CAKYAXd_QKsiTV86H4eykjOzfJc8Who1T8in5TmnJyxigw=+7AQ@mail.gmail.com>
Date:	Sun, 24 Jun 2012 13:22:33 +0900
From:	Namjae Jeon <linkinjeon@...il.com>
To:	Chuck Lever <chuck.lever@...cle.com>
Cc:	Jim Rees <rees@...ch.edu>,
	"bfields@...ldses.org" <bfields@...ldses.org>,
	"Trond.Myklebust@...app.com" <Trond.Myklebust@...app.com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"bharrosh@...asas.com" <bharrosh@...asas.com>,
	"linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Namjae Jeon <namjae.jeon@...sung.com>,
	VivekTrivedi <t.vivek@...sung.com>,
	Amit Sahrawat <a.sahrawat@...sung.com>
Subject: Re: [RFC PATCH] nfs: Support posix_fadvise(POSIX_FADV_RANDOM) on nfs server.

2012/6/23, Chuck Lever <chuck.lever@...cle.com>:
>
>
> Sent from my iPad
>
> On Jun 23, 2012, at 7:51 AM, Jim Rees <rees@...ch.edu> wrote:
>
>> Namjae Jeon wrote:
>>
>>  From: Namjae Jeon <namjae.jeon@...sung.com>
>>
>>  This patch disable readahead for a file on NFS Server when
>>  posix_fadvise(fd..., POSIX_FADV_RANDOM) is called on NFS
>>  Client.
>>
>> It looks like you're adding an argument to the read op.  Wouldn't that be
>> an
>> incompatible change?  In which case wouldn't it be better to propose this
>> for inclusion in NFS 4.2?  In fact didn't Dean propose this?  What ever
>> happened with that?
>
> Yes, posix_fadvise support is part of NFSv4.2.
Where can I check it ?
Thanks.
>
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