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

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Message-Id: <20221203030356.3917-1-palmer@rivosinc.com>
Date:   Fri,  2 Dec 2022 19:03:51 -0800
From:   Palmer Dabbelt <palmer@...osinc.com>
To:        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
           linux-s390@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 0/5] mm: Stop alaising VM_FAULT_HINDEX_MASK in arch code

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.