linux-kernel - Re: [PATCH 0/5] mm: Stop alaising VM_FAULT_HINDEX

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Message-ID: <mhng-15cb5600-7883-4454-aabe-6e695a81a45c@palmer-ri-x1c9>
Date:   Thu, 02 Feb 2023 19:31:56 -0800 (PST)
From:   Palmer Dabbelt <palmer@...osinc.com>
To:     linux-kernel@...r.kernel.org
CC:     linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject:     Re: [PATCH 0/5] mm: Stop alaising VM_FAULT_HINDEX_MASK in arch code

On Fri, 02 Dec 2022 19:03:51 PST (-0800), Palmer Dabbelt wrote:
> When reviewing
> <https://lore.kernel.org/r/20221029084715.3669204-1-tongtiangen@huawei.com>
> I noticed that the arch-specific VM_FAULT flags used by arm and s390
> alias with VM_FAULT_HINDEX_MASK.  I'm not sure if it's possible to
> manifest this as a bug, but it certainly seems fragile.
>
> The RISC-V patch is on top of the linked patch above, which isn't in any
> proper tree yet.  Everything else should apply to 6.1-rc1, but I'm in no
> particular rush to get that cleanup in so rush on my end for 6.2.  That
> said I figured it would be easier to send along this now, just in case
> someone who knows the MM code better thinks it can manifest as a bug.

Just pinging this one, I'm not sure if it was just bad timing on the 
last one.  That RISC-V patch is still sitting around outside my tree.