linux-kernel - Re: [PATCHv2] mm: Fix warning in move_normal

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Date:   Thu, 16 Jul 2020 00:13:17 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Joel Fernandes <joel@...lfernandes.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux-MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        William Kucharski <william.kucharski@...cle.com>
Subject: Re: [PATCHv2] mm: Fix warning in move_normal_pmd()

On Wed, Jul 15, 2020 at 04:54:28PM -0400, Joel Fernandes wrote:
> Hi Linus,
> 
> On Wed, Jul 15, 2020 at 11:36:59AM -0700, Linus Torvalds wrote:
> Regarding the ADDR_AFTER_NEXT checks, shouldn't you check for:
> 
> 	if (ADDR_AFTER_NEXT(ALIGN(*old_addr + *len, PMD_SIZE), old))
> 		return;

See comment to ADDR_AFTER_NEXT().

-- 
 Kirill A. Shutemov