[PATCH v4] riscv: fix race when vmap stack overflow

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

Hello:

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

On Tue, 29 Nov 2022 18:24:43 -0800 you wrote:
> From: Jisheng Zhang <jszhang at kernel.org>
> 
> Currently, when detecting vmap stack overflow, riscv firstly switches
> to the so called shadow stack, then use this shadow stack to call the
> get_overflow_stack() to get the overflow stack. However, there's
> a race here if two or more harts use the same shadow stack at the same
> time.
> 
> [...]

Here is the summary with links:
  - [v4] riscv: fix race when vmap stack overflow
    https://git.kernel.org/riscv/c/7e1864332fbc

You are awesome, thank you!
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