linux-kernel - Re: [PATCH v2 1/3] arch/x86: Drop own definition of pgd,p4d

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Message-ID: <Zo6eHVBcUyznRalN@x1n>
Date: Wed, 10 Jul 2024 10:43:41 -0400
From: Peter Xu <peterx@...hat.com>
To: Christophe Leroy <christophe.leroy@...roup.eu>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, x86@...nel.org, linux-riscv@...ts.infradead.org,
	Oscar Salvador <osalvador@...e.de>
Subject: Re: [PATCH v2 1/3] arch/x86: Drop own definition of pgd,p4d_leaf

On Wed, Jul 10, 2024 at 09:51:20AM +0200, Christophe Leroy wrote:
> From: Oscar Salvador <osalvador@...e.de>
> 
> We provide generic definitions of pXd_leaf in pgtable.h when the arch
> do not define their own, where the generic pXd_leaf always return false.
> 
> Although x86 defines {pgd,p4d}_leaf, they end up being a no-op, so drop them
> and make them fallback to the generic one.
> 
> Signed-off-by: Oscar Salvador <osalvador@...e.de>
> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>

Reviewed-by: Peter Xu <peterx@...hat.com>

-- 
Peter Xu