linux-kernel - Re: [PATCH v2 3/3] mm: Add p{g/4}d_leaf() in asm-generic/pgtable-nop{4/u}d.h

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Message-ID: <Zo6e1ILgDn6nuhGC@x1n>
Date: Wed, 10 Jul 2024 10:46:44 -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 3/3] mm: Add p{g/4}d_leaf() in
 asm-generic/pgtable-nop{4/u}d.h

On Wed, Jul 10, 2024 at 09:51:22AM +0200, Christophe Leroy wrote:
> Commit 2c8a81dc0cc5 ("riscv/mm: fix two page table check related
> issues") added pud_leaf() in include/asm-generic/pgtable-nopmd.h
> 
> Do the same for p4d_leaf() and pgd_leaf() to avoid getting them
> erroneously defined by architectures that do not implement the
> related page level.
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
> ---
> v2: Added pXd_leaf macro as well in asm-generic/pgtable-nopXd.h to cohabit with the fallback
> ---

Thanks.  I'd drop the inline functions, but no strong opinions.

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

-- 
Peter Xu