From: Jeff Dike <jdike@addtoit.com>
To: Ingo van Lil <inguin@gmx.de>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] hostfs oddities
Date: Thu, 10 Jul 2008 13:28:30 -0400 [thread overview]
Message-ID: <20080710172830.GC18429@c2.user-mode-linux.org> (raw)
In-Reply-To: <487514EE.3000903@gmx.de>
On Wed, Jul 09, 2008 at 09:43:42PM +0200, Ingo van Lil wrote:
> I gave all this a little more thought: The ideal solution would be to
> somehow share the host's page cache for that file. That way concurrent
> read and write accesses on both sides would be automatically
> synchronized, just as when multiple regular processes access the same
> file. I guess that's not easily possible, is it?
It is possible. mappng pages from the host into the UML page cache
will do that. Adding mmap support to UML is possible, just there
hasn't been a lot of demand for it.
Jeff
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Work email - jdike at linux dot intel dot com
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prev parent reply other threads:[~2008-07-10 17:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-05 18:46 [uml-devel] hostfs oddities Ingo van Lil
2008-07-07 20:39 ` Jeff Dike
2008-07-08 14:15 ` Ingo van Lil
2008-07-10 17:37 ` Jeff Dike
2008-07-09 19:43 ` Ingo van Lil
2008-07-10 17:28 ` Jeff Dike [this message]
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