linux-kernel - Re: [PATCH 0/2] arm64/mm/hotplug: Drop some redundant WARN

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Message-ID: <9abeecc3-2b19-43ba-8619-ea286d54db8e@arm.com>
Date: Tue, 18 Mar 2025 11:24:45 +0530
From: Anshuman Khandual <anshuman.khandual@....com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 Ard Biesheuvel <ardb@...nel.org>, Ryan Roberts <ryan.roberts@....com>,
 Mark Rutland <mark.rutland@....com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] arm64/mm/hotplug: Drop some redundant WARN_ON()

On 2/21/25 15:14, Anshuman Khandual wrote:
> This series drops some redundant WARN_ON() tests which are not required any
> more while unmapping and freeing up kernel page table pages during a memory
> hot remove operation.
> 
> This series applies on v6.14-rc3
> 
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will@...nel.org>
> Cc: Ard Biesheuvel <ardb@...nel.org>
> Cc: Ryan Roberts <ryan.roberts@....com>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> 
> Anshuman Khandual (2):
>   arm64/mm/hotplug: Drop redundant [pgd|p4d]_present()
>   arm64/mm/hotplug: Replace pxx_present() with pxx_valid()
> 
>  arch/arm64/mm/mmu.c | 14 +++++---------
>  1 file changed, 5 insertions(+), 9 deletions(-)
> 

Gentle ping, any updates on this series ? This simplifies WARN_ON()
checks during memory hotplug operation, after subsequent changes to
page table helpers such as pxd_present() etc.