linux-kernel - Re: [PATCH 29/34] x86: separate out LDT init from context init

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Message-ID: <alpine.DEB.2.11.1512081945440.3595@nanos>
Date:	Tue, 8 Dec 2015 19:45:57 +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 29/34] x86: separate out LDT init from context init

On Thu, 3 Dec 2015, Dave Hansen wrote:
> The arch-specific mm_context_t is a great place to put
> protection-key allocation state.
> 
> But, we need to initialize the allocation state because pkey 0 is
> always "allocated".  All of the runtime initialization of
> mm_context_t is done in *_ldt() manipulation functions.  This
> renames the existing LDT functions like this:
> 
> 	init_new_context() -> init_new_context_ldt()
> 	destroy_context() -> destroy_context_ldt()
> 
> and makes init_new_context() and destroy_context() available for
> generic use.

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