Re: [PATCH V2 0/3] kprobe: Optimize the performance of patching ss
From: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Date: 2022-09-13 11:19:22
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On Tue, 13 Sep 2022 11:34:51 +0800 Liao Chang [off-list ref] wrote:
Single-step slot would not be used until kprobe is enabled, that means no race condition occurs on it under SMP, hence it is safe to pacth ss slot without stopping machine.
All these patches look good to me, since single-step slot must not be executed until it is prepared. Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> for this series. But I need Ack by each architecture maintainer. Thank you,
v2: Backport riscv patch to cksy and arm64. Liao Chang (3): riscv/kprobe: Optimize the performance of patching single-step slot csky/kprobe: Optimize the performance of patching single-step slot arm64/kprobe: Optimize the performance of patching single-step slot arch/arm64/kernel/probes/kprobes.c | 5 ++--- arch/csky/kernel/probes/kprobes.c | 6 +++++- arch/riscv/kernel/probes/kprobes.c | 8 +++++--- 3 files changed, 12 insertions(+), 7 deletions(-) -- 2.17.1
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