From: Ingo Molnar <mingo@elte.hu>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: Rik van Riel <riel@redhat.com>, Jeff Garzik <jgarzik@pobox.com>,
Rajesh Venkatasubramanian <vrajesh@eecs.umich.edu>,
akpm@osdl.org, linux-mm@kvack.org
Subject: Re: [PATCH 1/2] remap file pages MAP_NONBLOCK fix
Date: Sat, 6 Sep 2003 10:36:02 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.56.0309061034240.3396@localhost.localdomain> (raw)
In-Reply-To: <202200000.1062791080@flay>
On Fri, 5 Sep 2003, Martin J. Bligh wrote:
> >> Or we could just kill remap_file_pages(), because it's a PITA to
> >> maintain and it has maybe 10 legitimate users in the entire world...
> >
> > It has its uses. I just don't think it should support
> > a non-mlocked VMA or deal with files being truncated.
> >
> > The remap_file_pages we have in Taroon is pretty light
> > weight. I hope the implementation in 2.6 will be
> > simplified too ;)
>
> We did actually agree to do this at Kernel Summit too ....
yep - i did most of the simplification for 2.4 and it worked out well.
Having fremap a non-swappable thing lessens the impact on the rest of the
VM quite significantly.
Ingo
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prev parent reply other threads:[~2003-09-06 8:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-05 18:31 Rajesh Venkatasubramanian
2003-09-05 18:50 ` Jeff Garzik
2003-09-05 19:46 ` Rik van Riel
2003-09-05 19:44 ` Martin J. Bligh
2003-09-06 8:36 ` Ingo Molnar [this message]
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