Re: [PATCH bpf 1/3] x86/mm: Move is_vsyscall_vaddr() into mm_internal.h

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Subject: Re: [PATCH bpf 1/3] x86/mm: Move is_vsyscall_vaddr() into mm_internal.h
From: Sohil Mehta <sohil.mehta@xxxxxxxxx>
Date: Fri, 19 Jan 2024 16:35:08 -0800
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, "H . Peter Anvin" <hpa@xxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, xingwei lee <xrivendell7@xxxxxxxxx>, "Jann Horn" <jannh@xxxxxxxxxx>, <houtao1@xxxxxxxxxx>
In-reply-to: <20240119073019.1528573-2-houtao@huaweicloud.com>
User-agent: Mozilla Thunderbird

On 1/18/2024 11:30 PM, Hou Tao wrote:
> From: Hou Tao <houtao1@xxxxxxxxxx>
> 
> Moving is_vsyscall_vaddr() into mm_internal.h to make it available for
> copy_from_kernel_nofault_allowed() in arch/x86/mm/maccess.c.
> 

Instead of mm_internal.h would a better place for is_vsyscall_vaddr() be
arch/x86/include/asm/vsyscall.h?

Sohil

Follow-Ups:
- Re: [PATCH bpf 1/3] x86/mm: Move is_vsyscall_vaddr() into mm_internal.h
  - From: Hou Tao

References:
- [PATCH bpf 0/3] Fix the read of vsyscall page through bpf
  - From: Hou Tao
- [PATCH bpf 1/3] x86/mm: Move is_vsyscall_vaddr() into mm_internal.h
  - From: Hou Tao

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