In-Reply-To: <20230127035306.1819561-1-guoren@kernel.org>
References: <20230127035306.1819561-1-guoren@kernel.org>
Subject: Re: [PATCH V2] riscv: Fixup race condition on PG_dcache_clean in
 flush_icache_pte
Message-Id: <167598585275.27143.16666537067061607902.b4-ty@rivosinc.com>
Date:   Thu, 09 Feb 2023 15:37:32 -0800
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Cc:     linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
        Guo Ren <guoren@kernel.org>
From:   Palmer Dabbelt <palmer@rivosinc.com>
To:     Arnd Bergmann <arnd@arndb.de>,
        Conor Dooley <conor.dooley@microchip.com>,
        apatel@ventanamicro.com, atishp@atishpatra.org,
        Mark Rutland <mark.rutland@arm.com>, bjorn@kernel.org,
        tongtiangen@huawei.com, ajones@ventanamicro.com,
        Andrew Waterman <andrew@sifive.com>, guoren@kernel.org
Precedence: bulk


On Thu, 26 Jan 2023 22:53:06 -0500, guoren@kernel.org wrote:
> In commit 588a513d3425 ("arm64: Fix race condition on PG_dcache_clean
> in __sync_icache_dcache()"), we found RISC-V has the same issue as the
> previous arm64. The previous implementation didn't guarantee the correct
> sequence of operations, which means flush_icache_all() hasn't been
> called when the PG_dcache_clean was set. That would cause a risk of page
> synchronization.
> 
> [...]

Applied, thanks!

[1/1] riscv: Fixup race condition on PG_dcache_clean in flush_icache_pte
      https://git.kernel.org/palmer/c/950b879b7f02

Best regards,
-- 
Palmer Dabbelt <palmer@rivosinc.com>