linux-kernel - Re: [PATCH V5 2/3] riscv: Add ASID-based tlbflushing methods

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Date:   Mon, 31 May 2021 08:17:42 +0200
From:   Christoph Hellwig <hch@....de>
To:     guoren@...nel.org
Cc:     anup.patel@....com, palmerdabbelt@...gle.com, arnd@...db.de,
        hch@....de, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        Guo Ren <guoren@...ux.alibaba.com>
Subject: Re: [PATCH V5 2/3] riscv: Add ASID-based tlbflushing methods

On Sun, May 30, 2021 at 04:49:25PM +0000, guoren@...nel.org wrote:
> From: Guo Ren <guoren@...ux.alibaba.com>
> 
> Implement optimized version of the tlb flushing routines for systems
> using ASIDs. These are behind the use_asid_allocator static branch to
> not affect existing systems not using ASIDs.

I still think the code duplication and exposing of new code in a global
header here is a bad idea and would suggest the version I sent instead.