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Date: Tue, 29 Apr 2025 17:08:36 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>, Daniel Axtens
 <dja@axtens.net>, 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
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On Tue, 29 Apr 2025 18:08:41 +0200 Alexander Gordeev <agordeev@linux.ibm.com> wrote:

> +	__memset(pfn_to_virt(pfn), KASAN_VMALLOC_INVALID, PAGE_SIZE);

pfn_to_virt() exists only in riscv, s390, m68k, loongarch and microblaze.