linux-kernel - Re: [PATCH v3 1/1] kasan: Avoid sleepable page allocation from atomic context

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Message-Id: <20250429170836.bcd25bcbe25d4f3d436d9e39@linux-foundation.org>
Date: Tue, 29 Apr 2025 17:08:36 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Alexander Gordeev <agordeev@...ux.ibm.com>
Cc: Andrey Ryabinin <ryabinin.a.a@...il.com>, Daniel Axtens
 <dja@...ens.net>, linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 kasan-dev@...glegroups.com, linux-s390@...r.kernel.org,
 stable@...r.kernel.org
Subject: Re: [PATCH v3 1/1] kasan: Avoid sleepable page allocation from
 atomic context

On Tue, 29 Apr 2025 18:08:41 +0200 Alexander Gordeev <agordeev@...ux.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.