linux-kernel - Re: [PATCH V3 1/2] riscv: Fixup _PAGE_GLOBAL in _PAGE

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Message-ID: <20210525122809.GA4842@lst.de>
Date:   Tue, 25 May 2021 14:28:09 +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,
        linux-sunxi@...ts.linux.dev, Guo Ren <guoren@...ux.alibaba.com>
Subject: Re: [PATCH V3 1/2] riscv: Fixup _PAGE_GLOBAL in _PAGE_KERNEL

On Tue, May 25, 2021 at 12:24:06PM +0000, guoren@...nel.org wrote:
> From: Guo Ren <guoren@...ux.alibaba.com>
> 
> Kernel virtual address translation should avoid care asid or it'll

s/care aisd/to use ASIDs/ ?

> cause more TLB-miss and TLB-refill. Because the current asid in satp

s/asid/ASID/ ?

> belongs to the current process, but the target kernel va TLB entry's
> asid still belongs to the previous process.
> 
> Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
> Reviewed-by: Anup Patel <anup@...infault.org>
> Cc: Palmer Dabbelt <palmerdabbelt@...gle.com>

Otherwise looks good,

Reviewed-by: Christoph Hellwig <hch@....de>