From: David Rientjes <rientjes@google.com>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: make 'highmem' symbol ro_after_init
Date: Mon, 24 Jan 2022 10:17:14 -0800 (PST) [thread overview]
Message-ID: <346af9f-d9ea-463a-686e-1cce79a1c8d2@google.com> (raw)
In-Reply-To: <20220124170555.1054480-1-ardb@kernel.org>
On Mon, 24 Jan 2022, Ard Biesheuvel wrote:
> diff --git a/mm/memory.c b/mm/memory.c
> index c125c4969913..50e82cb94ccc 100644
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -106,7 +106,7 @@ EXPORT_SYMBOL(mem_map);
> * highstart_pfn must be the same; there must be no gap between ZONE_NORMAL
> * and ZONE_HIGHMEM.
> */
> -void *high_memory;
> +void *high_memory __ro_after_init;
> EXPORT_SYMBOL(high_memory);
>
> /*
Same should be true for the mm/nommu.c variant?
next prev parent reply other threads:[~2022-01-24 18:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-24 17:05 Ard Biesheuvel
2022-01-24 18:17 ` David Rientjes [this message]
2022-01-24 18:31 ` Matthew Wilcox
2022-01-26 21:38 ` Mike Rapoport
2022-01-28 9:07 ` Ard Biesheuvel
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