From: Arjan van de Ven <arjan@infradead.org>
To: "Robert W. Fuller" <orangemagicbus@sbcglobal.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: address space reservation functionality?
Date: Tue, 11 Jan 2005 20:19:46 +0100 [thread overview]
Message-ID: <1105471186.3917.46.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <41E4201B.60606@sbcglobal.net>
> >
>
> Sorry about the top posting. This is a resend without it.
>
> This is not quite the same thing. This still does a check for whether
> or not there is enough memory
no it doesn't
> and includes this in the virtual size of
> the process.
because the virtual size is taken.... by the reservation
> I simply want to reserve a part of the address space so
> I'm guaranteed I can map something else over a contiguous portion of the
> address space. I don't want it to check for available memory or
> increase the virtual size of the process because I will be using this
> region sparsely. That is why Solaris and Windows have separate
> interfaces for this.
well you can mmap /dev/zero.. but that's about the same as malloc.
prev parent reply other threads:[~2005-01-11 19:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-10 20:52 address space reservation functionality? Robert W. Fuller
2005-01-11 7:42 ` Arjan van de Ven
2005-01-11 18:39 ` Robert W. Fuller
2005-01-11 18:51 ` Robert W. Fuller
2005-01-11 19:19 ` Arjan van de Ven [this message]
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