[PATCH 1/1] bpf: avoid unnecessary IPI in bpf_flush_icache
From: Yanfei Xu <hidden>
Date: 2021-06-01 15:07:17
Also in:
bpf, linux-arm-kernel, lkml
Subsystem:
arm64 port (aarch64 architecture), bpf jit for arm64, bpf [general] (safe dynamic programs and tools), the rest · Maintainers:
Catalin Marinas, Will Deacon, Daniel Borkmann, Alexei Starovoitov, Puranjay Mohan, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
It's no need to trigger IPI for keeping pipeline fresh in bpf case. Signed-off-by: Yanfei Xu <redacted> --- 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