linux-kernel - Re: [PATCH 16/32] x86, mm: simplify get_user

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Message-ID: <alpine.DEB.2.11.1512142055510.4336@nanos>
Date:	Mon, 14 Dec 2015 20:56:07 +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 16/32] x86, mm: simplify get_user_pages() PTE bit
 handling

On Mon, 14 Dec 2015, Dave Hansen wrote:
> The current get_user_pages() code is a wee bit more complicated
> than it needs to be for pte bit checking.  Currently, it establishes
> a mask of required pte _PAGE_* bits and ensures that the pte it
> goes after has all those bits.
> 
> This consolidates the three identical copies of this code.
> 
> Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>

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