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Mon, 02 Dec 2024 18:47:50 -0800 (PST) X-Google-Smtp-Source: AGHT+IGzeFJ+2ROTZvJnL0D3su2mbemsSdeUnJmTDHLP0c4GM9H7s7uGaM2AzZpaQluWaupBDBrvSw== X-Received: by 2002:a17:902:db0f:b0:215:5d8c:7e3f with SMTP id d9443c01a7336-2155d8c8072mr148390975ad.23.1733194069802; Mon, 02 Dec 2024 18:47:49 -0800 (PST) Received: from [10.72.112.107] ([43.228.180.230]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2154dae56e8sm59832805ad.19.2024.12.02.18.47.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Dec 2024 18:47:49 -0800 (PST) Message-ID: Date: Tue, 3 Dec 2024 12:47:44 +1000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64/mm: Ensure adequate HUGE_MAX_HSTATE To: Anshuman Khandual , linux-arm-kernel@lists.infradead.org Cc: Catalin Marinas , Will Deacon , Ard Biesheuvel , Ryan Roberts , Mark Rutland , linux-kernel@vger.kernel.org References: <20241202064407.53807-1-anshuman.khandual@arm.com> Content-Language: en-US From: Gavin Shan In-Reply-To: <20241202064407.53807-1-anshuman.khandual@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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 > Cc: Will Deacon > Cc: Ard Biesheuvel > Cc: Ryan Roberts > Cc: Mark Rutland > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Anshuman Khandual > --- > This patch applies on v6.13-rc1 > > arch/arm64/mm/hugetlbpage.c | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > Reviewed-by: Gavin Shan