[PATCH] mm: riscv: fix an unsafe pte read in huge_pte_alloc()

[patchwork-bot+linux-riscv at kernel.org]

Hello:

This patch was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer at rivosinc.com>:

On Mon, 3 Jul 2023 12:00:44 -0700 you wrote:
> The WARN_ON_ONCE() statement in riscv's huge_pte_alloc() is susceptible
> to false positives, because the pte is read twice at the C language
> level, locklessly, within the same conditional statement. Depending on
> compiler behavior, this can lead to generated machine code that actually
> reads the pte just once, or twice. Reading twice will expose the code to
> changing pte values and cause incorrect behavior.
> 
> [...]

Here is the summary with links:
  - mm: riscv: fix an unsafe pte read in huge_pte_alloc()
    https://git.kernel.org/riscv/c/62ba41d27612

You are awesome, thank you!
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