Re: [PATCH v4.19] arm64: fix a concurrency issue in emulation_proc_handler()
From: Jinjie Ruan
Date: Tue Oct 31 2023 - 07:52:51 EST
On 2023/10/31 19:18, Greg KH wrote:
> 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.
Right! 5.4.y also need it. Thank you very much.
>
> thanks,
>
> greg k-h
>
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> Date: Tue, 31 Oct 2023 12:18:17 +0100
> From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
> To: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
> Cc: catalin.marinas@xxxxxxx, will.deacon@xxxxxxx, mark.rutland@xxxxxxx,
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH v4.19] arm64: fix a concurrency issue in
> emulation_proc_handler()
> Message-ID: <2023103103-revision-gigantic-cc05@gregkh>
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> 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
>
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