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
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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
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