linux-kernel - Re: [PATCH] arm64/mm: Ensure adequate HUGE_MAX

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Message-ID: <e0e5d74c-5e5e-4448-aa83-9187daff5b2a@redhat.com>
Date: Tue, 3 Dec 2024 12:47:44 +1000
From: Gavin Shan <gshan@...hat.com>
To: Anshuman Khandual <anshuman.khandual@....com>,
 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] arm64/mm: Ensure adequate HUGE_MAX_HSTATE

On 12/2/24 4:44 PM, Anshuman Khandual wrote:
> This asserts that HUGE_MAX_HSTATE is sufficient enough preventing potential
> hugetlb_max_hstate runtime overflow in hugetlb_add_hstate() thus triggering
> a BUG_ON() there after.
> 
> 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
> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
> ---
> This patch applies on v6.13-rc1
> 
>   arch/arm64/mm/hugetlbpage.c | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
> 

Reviewed-by: Gavin Shan <gshan@...hat.com>