linux-kernel - Re: sparc: Fix mremap VA span checking.

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Message-Id: <20080512.042453.238263459.davem@davemloft.net>
Date:	Mon, 12 May 2008 04:24:53 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jlieskov@...hat.com
Cc:	sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: sparc: Fix mremap VA span checking.

From: Jan Lieskovsky <jlieskov@...hat.com>
Date: Mon, 12 May 2008 13:15:12 +0200

>  I have investigated the code for MREMAP_FIXED in
> sparc_mremap in arch/sparc/kernel/sys_sparc.c, for sys64_mremap
> in arch/sparc64/kernel/sys_sparc.c and 
> for sys32_mremap in arch/sparc64/kernel/sys_sparc32.c
> and there are similar conditional range checks ->
> attaching the patches against 2.6.25.3.

Thanks for the report, I'll take a look at this after getting
some sleep as it's late hear.

My first impression is that it might make sense to put an
arch_mmap_check() call at the appropriate spots instead of duplicating
this check so many times.
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