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From: Yanfei Xu <yanfei.xu@windriver.com>
To: daniel@iogearbox.net, ast@kernel.org, zlim.lnx@gmail.com,
	catalin.marinas@arm.com, will@kernel.org, andrii@kernel.org,
	kafai@fb.com, songliubraving@fb.com, yhs@fb.com,
	john.fastabend@gmail.com, kpsingh@kernel.org
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 1/1] bpf: avoid unnecessary IPI in bpf_flush_icache
Date: Tue,  1 Jun 2021 23:06:25 +0800	[thread overview]
Message-ID: <20210601150625.37419-2-yanfei.xu@windriver.com> (raw)
In-Reply-To: <20210601150625.37419-1-yanfei.xu@windriver.com>

It's no need to trigger IPI for keeping pipeline fresh in bpf case.

Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
---
 arch/arm64/net/bpf_jit_comp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index f7b194878a99..5311f8be4ba4 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -974,7 +974,7 @@ static int validate_code(struct jit_ctx *ctx)
 
 static inline void bpf_flush_icache(void *start, void *end)
 {
-	flush_icache_range((unsigned long)start, (unsigned long)end);
+	__flush_icache_range((unsigned long)start, (unsigned long)end);
 }
 
 struct arm64_jit_data {
-- 
2.27.0


WARNING: multiple messages have this Message-ID (diff)
From: Yanfei Xu <yanfei.xu@windriver.com>
To: daniel@iogearbox.net, ast@kernel.org, zlim.lnx@gmail.com,
	catalin.marinas@arm.com, will@kernel.org, andrii@kernel.org,
	kafai@fb.com, songliubraving@fb.com, yhs@fb.com,
	john.fastabend@gmail.com, kpsingh@kernel.org
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 1/1] bpf: avoid unnecessary IPI in bpf_flush_icache
Date: Tue,  1 Jun 2021 23:06:25 +0800	[thread overview]
Message-ID: <20210601150625.37419-2-yanfei.xu@windriver.com> (raw)
In-Reply-To: <20210601150625.37419-1-yanfei.xu@windriver.com>

It's no need to trigger IPI for keeping pipeline fresh in bpf case.

Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
---
 arch/arm64/net/bpf_jit_comp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index f7b194878a99..5311f8be4ba4 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -974,7 +974,7 @@ static int validate_code(struct jit_ctx *ctx)
 
 static inline void bpf_flush_icache(void *start, void *end)
 {
-	flush_icache_range((unsigned long)start, (unsigned long)end);
+	__flush_icache_range((unsigned long)start, (unsigned long)end);
 }
 
 struct arm64_jit_data {
-- 
2.27.0


_______________________________________________
linux-arm-kernel mailing list
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2021-06-01 15:07 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-01 15:06 [PATCH 0/1] bpf: avoid unnecessary IPI in bpf_flush_icache Yanfei Xu
2021-06-01 15:06 ` Yanfei Xu
2021-06-01 15:06 ` Yanfei Xu [this message]
2021-06-01 15:06   ` [PATCH 1/1] " Yanfei Xu
2021-06-01 17:20   ` Daniel Borkmann
2021-06-01 17:20     ` Daniel Borkmann
2021-06-01 17:41     ` Will Deacon
2021-06-01 17:41       ` Will Deacon
2021-06-02 11:26       ` Xu, Yanfei
2021-06-02 11:26         ` Xu, Yanfei
2021-06-02 17:26         ` Will Deacon
2021-06-02 17:26           ` Will Deacon
2021-06-03 10:29           ` Xu, Yanfei
2021-06-03 10:29             ` Xu, Yanfei

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