lkml.org 
[lkml]   [2022]   [Sep]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH V2 0/3] kprobe: Optimize the performance of patching ss
On Tue, 13 Sep 2022 11:34:51 +0800
Liao Chang <liaochang1@huawei.com> 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
>


--
Masami Hiramatsu (Google) <mhiramat@kernel.org>

\
 
 \ /
  Last update: 2022-09-13 13:20    [W:0.140 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site