linux-kernel - Re: [PATCH 26/31] x86, pkeys: add arch_validate

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Date:	Fri, 8 Jan 2016 20:34:27 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Dave Hansen <dave@...1.net>
cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org, x86@...nel.org,
	dave.hansen@...ux.intel.com
Subject: Re: [PATCH 26/31] x86, pkeys: add arch_validate_pkey()

On Wed, 6 Jan 2016, Dave Hansen wrote:
> 
> From: Dave Hansen <dave.hansen@...ux.intel.com>
> 
> The syscall-level code is passed a protection key and need to
> return an appropriate error code if the protection key is bogus.
> We will be using this in subsequent patches.
> 
> Note that this also begins a series of arch-specific calls that
> we need to expose in otherwise arch-independent code.  We create
> a linux/pkeys.h header where we will put *all* the stubs for
> these functions.
> 
> Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>