Re: [PATCH v23 21/28] mm: Re-introduce vm_flags to do_mmap()

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To: "Yu, Yu-cheng" <yu-cheng.yu@xxxxxxxxx>
Subject: Re: [PATCH v23 21/28] mm: Re-introduce vm_flags to do_mmap()
From: Borislav Petkov <bp@xxxxxxxxx>
Date: Thu, 18 Mar 2021 17:13:01 +0100
Cc: x86@xxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-api@xxxxxxxxxxxxxxx, Arnd Bergmann <arnd@xxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Balbir Singh <bsingharora@xxxxxxxxx>, Cyrill Gorcunov <gorcunov@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Eugene Syromiatnikov <esyr@xxxxxxxxxx>, Florian Weimer <fweimer@xxxxxxxxxx>, "H.J. Lu" <hjl.tools@xxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Mike Kravetz <mike.kravetz@xxxxxxxxxx>, Nadav Amit <nadav.amit@xxxxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, Pavel Machek <pavel@xxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Randy Dunlap <rdunlap@xxxxxxxxxxxxx>, "Ravi V. Shankar" <ravi.v.shankar@xxxxxxxxx>, Vedvyas Shanbhogue <vedvyas.shanbhogue@xxxxxxxxx>, Dave Martin <Dave.Martin@xxxxxxx>, Weijiang Yang <weijiang.yang@xxxxxxxxx>, Pengfei Xu <pengfei.xu@xxxxxxxxx>, Haitao Huang <haitao.huang@xxxxxxxxx>, Peter Collingbourne <pcc@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
In-reply-to: <af1f109b-c36e-b548-ae15-752f7af7c1d4@intel.com>
References: <20210316151054.5405-1-yu-cheng.yu@intel.com> <20210316151054.5405-22-yu-cheng.yu@intel.com> <20210318114232.GD19570@zn.tnic> <af1f109b-c36e-b548-ae15-752f7af7c1d4@intel.com>

On Thu, Mar 18, 2021 at 08:59:28AM -0700, Yu, Yu-cheng wrote:
> Right, do_mmap_pgoff() was removed by commit 45e55300f114.  This patch does
> not add back the wrapper.  Instead, add vm_flags to do_mmap(). Please advice
> if I misunderstand the question.

I'm just wondering why you even need to mention do_mmap_pgoff() since
that thing is gone now...

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

References:
- [PATCH v23 00/28] Control-flow Enforcement: Shadow Stack
  - From: Yu-cheng Yu
- [PATCH v23 21/28] mm: Re-introduce vm_flags to do_mmap()
  - From: Yu-cheng Yu
- Re: [PATCH v23 21/28] mm: Re-introduce vm_flags to do_mmap()
  - From: Borislav Petkov
- Re: [PATCH v23 21/28] mm: Re-introduce vm_flags to do_mmap()
  - From: Yu, Yu-cheng

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