linux-kernel - Re: [PATCH] arm64: mm: pass original fault address to handle_mm_fault() in PER_VMA

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Date:   Fri,  2 Jun 2023 13:33:17 +0100
From:   Will Deacon <will@...nel.org>
To:     Catalin Marinas <catalin.marinas@....com>,
        Jisheng Zhang <jszhang@...nel.org>
Cc:     kernel-team@...roid.com, Will Deacon <will@...nel.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] arm64: mm: pass original fault address to handle_mm_fault() in PER_VMA_LOCK block

On Wed, 24 May 2023 21:13:05 +0800, Jisheng Zhang wrote:
> When reading the arm64's PER_VMA_LOCK support code, I found a bit
> difference between arm64 and other arch when calling handle_mm_fault()
> during VMA lock-based page fault handling: the fault address is masked
> before passing to handle_mm_fault(). This is also different from the
> usage in mmap_lock-based handling. I think we need to pass the
> original fault address to handle_mm_fault() as we did in
> commit 84c5e23edecd ("arm64: mm: Pass original fault address to
> handle_mm_fault()").
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: mm: pass original fault address to handle_mm_fault() in PER_VMA_LOCK block
      https://git.kernel.org/arm64/c/0e2aba694866

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev