From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Collingbourne <pcc@google.com>
Subject: Re: [PATCH 15/22] arm64: mte: Add PROT_MTE support to mmap() and mprotect()
Date: Tue, 21 Jan 2020 14:06:14 -0800
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References: <20191211184027.20130-1-catalin.marinas@arm.com> <20191211184027.20130-16-catalin.marinas@arm.com>
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To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>, linux-arch@vger.kernel.org, Richard Earnshaw <Richard.Earnshaw@arm.com>, Szabolcs Nagy <szabolcs.nagy@arm.com>, Marc Zyngier <maz@kernel.org>, Kevin Brodsky <kevin.brodsky@arm.com>, linux-mm@kvack.org, Andrey Konovalov <andreyknvl@google.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Will Deacon <will@kernel.org>

On Wed, Dec 11, 2019 at 10:44 AM Catalin Marinas
<catalin.marinas@arm.com> wrote:
> diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
> index 9442631fd4af..34bc9e0b4896 100644
> --- a/fs/proc/task_mmu.c
> +++ b/fs/proc/task_mmu.c
> @@ -677,6 +677,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma)
>                 [ilog2(VM_MERGEABLE)]   = "mg",
>                 [ilog2(VM_UFFD_MISSING)]= "um",
>                 [ilog2(VM_UFFD_WP)]     = "uw",
> +#ifdef CONFIG_ARM64_MTE
> +               [ilog2(VM_MTE)]         = "mt",

We should probably add an entry for VM_MTE_ALLOWED here as well.

Peter