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Subject: Re: [PATCH] RISC-V: only flush icache when it has VM_EXEC set
From: patchwork-bot+linux-riscv@kernel.org
Message-Id: 
 <171275822931.12683.7449228181407944312.git-patchwork-notify@kernel.org>
Date: Wed, 10 Apr 2024 14:10:29 +0000
References: <tencent_6D851035F6F2FD0B5A69FB391AE39AC6300A@qq.com>
In-Reply-To: <tencent_6D851035F6F2FD0B5A69FB391AE39AC6300A@qq.com>
To: Yangyu Chen <cyy@cyyself.name>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
 paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu,
 alexghiti@rivosinc.com, conor.dooley@microchip.com, jszhang@kernel.org,
 andrew@sifive.com

Hello:

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

On Wed, 10 Jan 2024 02:48:59 +0800 you wrote:
> As I-Cache flush on current RISC-V needs to send IPIs to every CPU cores
> in the system is very costly, limiting flush_icache_mm to be called only
> when vma->vm_flags has VM_EXEC can help minimize the frequency of these
> operations. It improves performance and reduces disturbances when
> copy_from_user_page is needed such as profiling with perf.
> 
> For I-D coherence concerns, it will not fail if such a page adds VM_EXEC
> flags in the future since we have checked it in the __set_pte_at function.
> 
> [...]

Here is the summary with links:
  - RISC-V: only flush icache when it has VM_EXEC set
    https://git.kernel.org/riscv/c/542124fc0d5c

You are awesome, thank you!
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