From: Phillip Susi <psusi@ubuntu.com>
To: Jan Kara <jack@suse.cz>
Cc: Howard Chu <hyc@symas.com>,
Chris Friesen <chris.friesen@genband.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Johannes Weiner <hannes@cmpxchg.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org
Subject: Re: mmap vs fs cache
Date: Mon, 11 Mar 2013 11:03:21 -0400 [thread overview]
Message-ID: <513DF239.2000806@ubuntu.com> (raw)
In-Reply-To: <20130311115220.GB29799@quack.suse.cz>
On 3/11/2013 7:52 AM, Jan Kara wrote:
>> Yep, that's because it isn't implemented.
> Why do you think so? AFAICS it is implemented by setting VM_RAND_READ
> flag in the VMA and do_async_mmap_readahead() and do_sync_mmap_readahead()
> check for the flag and don't do anything if it is set...
Oh, don't know how I missed that... I was just looking for it the other
day and couldn't find any references to VM_RandomReadHint so I assumed
it hadn't been implemented.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
WARNING: multiple messages have this Message-ID (diff)
From: Phillip Susi <psusi@ubuntu.com>
To: Jan Kara <jack@suse.cz>
Cc: Howard Chu <hyc@symas.com>,
Chris Friesen <chris.friesen@genband.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Johannes Weiner <hannes@cmpxchg.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org
Subject: Re: mmap vs fs cache
Date: Mon, 11 Mar 2013 11:03:21 -0400 [thread overview]
Message-ID: <513DF239.2000806@ubuntu.com> (raw)
In-Reply-To: <20130311115220.GB29799@quack.suse.cz>
On 3/11/2013 7:52 AM, Jan Kara wrote:
>> Yep, that's because it isn't implemented.
> Why do you think so? AFAICS it is implemented by setting VM_RAND_READ
> flag in the VMA and do_async_mmap_readahead() and do_sync_mmap_readahead()
> check for the flag and don't do anything if it is set...
Oh, don't know how I missed that... I was just looking for it the other
day and couldn't find any references to VM_RandomReadHint so I assumed
it hadn't been implemented.
next prev parent reply other threads:[~2013-03-11 15:03 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-05 17:57 mmap vs fs cache Howard Chu
2013-03-05 23:55 ` Howard Chu
2013-03-06 10:14 ` Howard Chu
2013-03-06 10:22 ` Howard Chu
2013-03-07 15:43 ` Jan Kara
2013-03-07 15:43 ` Jan Kara
2013-03-08 2:08 ` Johannes Weiner
2013-03-08 2:08 ` Johannes Weiner
2013-03-08 7:46 ` Howard Chu
2013-03-08 7:46 ` Howard Chu
2013-03-08 8:42 ` Kirill A. Shutemov
2013-03-08 8:42 ` Kirill A. Shutemov
2013-03-08 9:40 ` Howard Chu
2013-03-08 9:40 ` Howard Chu
2013-03-08 14:47 ` Chris Friesen
2013-03-08 14:47 ` Chris Friesen
2013-03-08 15:00 ` Howard Chu
2013-03-08 15:00 ` Howard Chu
2013-03-08 15:25 ` Chris Friesen
2013-03-08 15:25 ` Chris Friesen
2013-03-08 16:16 ` Johannes Weiner
2013-03-08 16:16 ` Johannes Weiner
2013-03-08 20:04 ` Howard Chu
2013-03-08 20:04 ` Howard Chu
2013-03-11 12:04 ` Jan Kara
2013-03-11 12:04 ` Jan Kara
2013-03-11 12:40 ` Howard Chu
2013-03-11 12:40 ` Howard Chu
2013-03-09 3:28 ` Ric Mason
2013-03-09 3:28 ` Ric Mason
2013-03-09 1:22 ` Phillip Susi
2013-03-09 1:22 ` Phillip Susi
2013-03-11 11:52 ` Jan Kara
2013-03-11 11:52 ` Jan Kara
2013-03-11 15:03 ` Phillip Susi [this message]
2013-03-11 15:03 ` Phillip Susi
2013-03-09 2:34 ` Ric Mason
2013-03-09 2:34 ` Ric Mason
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=513DF239.2000806@ubuntu.com \
--to=psusi@ubuntu.com \
--cc=chris.friesen@genband.com \
--cc=hannes@cmpxchg.org \
--cc=hyc@symas.com \
--cc=jack@suse.cz \
--cc=kirill@shutemov.name \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.