From: Chris Friesen <cfriesen@nortelnetworks.com>
To: Helge Hafting <helgehaf@aitel.hist.no>
Cc: Amir Hermelin <amir@montilio.com>, linux-kernel@vger.kernel.org
Subject: Re: how do file-mapped (mmapped) pages become dirty?
Date: Tue, 28 Oct 2003 10:26:43 -0500 [thread overview]
Message-ID: <3F9E8AB3.4070305@nortelnetworks.com> (raw)
In-Reply-To: 3F9E84A5.2060500@aitel.hist.no
Helge Hafting wrote:
> Amir Hermelin wrote:
>> What function is responsible for this setting? And when will the page be
>> written back to disk (i.e. where's the flusher located)?
>>
> When there's memory pressure, or a sync.
Note however that you need an msync() -- fsync() and fdatasync() do not
catch changes to mmapped pages.
Chris
--
Chris Friesen | MailStop: 043/33/F10
Nortel Networks | work: (613) 765-0557
3500 Carling Avenue | fax: (613) 765-2986
Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com
next prev parent reply other threads:[~2003-10-28 15:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-28 12:35 how do file-mapped (mmapped) pages become dirty? Amir Hermelin
2003-10-28 15:00 ` Helge Hafting
2003-10-28 15:26 ` Chris Friesen [this message]
2003-10-28 15:45 ` Richard B. Johnson
2003-10-28 16:23 ` Chris Friesen
2003-10-28 15:39 ` Richard B. Johnson
2003-10-28 18:07 ` bill davidsen
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=3F9E8AB3.4070305@nortelnetworks.com \
--to=cfriesen@nortelnetworks.com \
--cc=amir@montilio.com \
--cc=helgehaf@aitel.hist.no \
--cc=linux-kernel@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox