linux-kernel - Re: [PATCH v4.19] arm64: fix a concurrency issue in emulation_proc

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Message-ID: <2023103103-revision-gigantic-cc05@gregkh>
Date:   Tue, 31 Oct 2023 12:18:17 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jinjie Ruan <ruanjinjie@...wei.com>
Cc:     catalin.marinas@....com, will.deacon@....com, mark.rutland@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4.19] arm64: fix a concurrency issue in
 emulation_proc_handler()

On Mon, Oct 30, 2023 at 06:37:09AM +0000, Jinjie Ruan wrote:
> In linux-6.1, the related code is refactored in commit 124c49b1b5d9
> ("arm64: armv8_deprecated: rework deprected instruction handling") and this
> issue was incidentally fixed. I have adapted the patch set to linux stable
> 5.10. However, 4.19 and 5.10 are too different and the patch set is
> hard to adapt to 4.19.

This is also needed for 5.4.y, right?  Now queued up for both.

thanks,

greg k-h