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b=VlLxqEtfaxvhdaSdxESr7mYnlUNxhB/KeoWQWnSl4EAwVd0nBdZei++vmTndMJOIR cAxWUNBtRDCeNnWst2L60Ram/TfBbyJFY5QaBpdjoQz7xhq8hjJT0w0z1pTOTM6ISf KfJbjuuDLzltrT3m6GO2t11skpIApnSVAIGGUDWY= Date: Tue, 29 Apr 2025 17:08:36 -0700 From: Andrew Morton To: Alexander Gordeev Cc: Andrey Ryabinin , Daniel Axtens , linux-kernel@vger.kernel.org, linux-mm@kvack.org, kasan-dev@googlegroups.com, linux-s390@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH v3 1/1] kasan: Avoid sleepable page allocation from atomic context Message-Id: <20250429170836.bcd25bcbe25d4f3d436d9e39@linux-foundation.org> In-Reply-To: <573a823565734e1eac3aa128fb9d3506ec918a72.1745940843.git.agordeev@linux.ibm.com> References: <573a823565734e1eac3aa128fb9d3506ec918a72.1745940843.git.agordeev@linux.ibm.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 8496B12000E X-Rspam-User: X-Rspamd-Server: rspam07 X-Stat-Signature: he386748w8q186q9x3hisdiy58mz655c X-HE-Tag: 1745971719-971005 X-HE-Meta: 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 Gaz0OwnW C/dOik52kVf3zmw6WHtGbSzizbuRpkA81n21kpf65OeGj8c32QmmvSwyCxDbLNEvDj2Xah0X+pJDXU2HErI0QZ34l+kQRU/WHLpM3/JUL+IGU5jc9hn8iMP9W/rSzzZDwZrqIszuFtjJ+xaEnTdyuSYWZKhRpOut9tEFKnNgw4AdfyDAt7n3KzuqIo+i2QYv/xmIpUCZCCjYgMOZMFELctNH5cN2ynSiK1WK0uMnZph4hC7v+CACDrJBevFTx8zoI+U/Lg8aLPo576bc5cj8fOS5sGaDvjExaopV8afSOgjCNLFqmToMncFGtatRd6sHqwyYZeoyx/MRixK2TfwaARf6bLQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 29 Apr 2025 18:08:41 +0200 Alexander Gordeev wrote: > + __memset(pfn_to_virt(pfn), KASAN_VMALLOC_INVALID, PAGE_SIZE); pfn_to_virt() exists only in riscv, s390, m68k, loongarch and microblaze.