From: "Layton, Evan J" <evan.j.layton@intel.com>
To: Jeff Layton <jlayton@redhat.com>
Cc: "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"Jelinek, Sarah" <sarah.jelinek@intel.com>
Subject: Re: Triggering readpages operation
Date: Thu, 26 Jul 2012 19:51:12 +0000 [thread overview]
Message-ID: <CC36B526.1A6E%evan.j.layton@intel.com> (raw)
In-Reply-To: <20120726073207.308703b8@tlielax.poochiereds.net>
No it's showing up as being 32. However I'm not really manipulating
anything in a backing_dev_info structure and just taking the defaults so
perhaps that's what I'm missing?
-evan
(By the way nice last name :)
On 7/26/12 5:32 AM, "Jeff Layton" <jlayton@redhat.com> wrote:
>On Wed, 25 Jul 2012 19:59:26 +0000
>"Layton, Evan J" <evan.j.layton@intel.com> wrote:
>
>>
>> I'm working on a project at intel and working on a better understanding
>>of "file system" operations specifically triggering readpages. However I
>>have not been able to figure out how to drive or force the file system
>>to use readpages. I had thought that readahead() would allow me to do
>>this but it's not driving readpages and just goes down the readpage
>>path. Any suggestions on the best way to get the file system to trigger
>>this operation?
>>
>> Thanks,
>> -evan
>
>
>Is your bdi->ra_pages value set to 0?
>
>--
>Jeff Layton <jlayton@redhat.com>
prev parent reply other threads:[~2012-07-26 19:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-25 19:59 Triggering readpages operation Layton, Evan J
2012-07-26 11:32 ` Jeff Layton
2012-07-26 19:51 ` Layton, Evan J [this message]
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