On 11/8/17 4:06 PM, David Miller wrote:
> From: Yonghong Song <[email protected]>
> Date: Wed, 8 Nov 2017 13:37:12 -0800
>
>> Uprobe is a tracing mechanism for userspace programs.
>> Typical uprobe will incur overhead of two traps.
>> First trap is caused by replaced trap insn, and
>> the second trap is to execute the original displaced
>> insn in user space.
> ...
>
> I don't understand how this is bpf related, and if it is you don't
> explain it well in the commit message.
Right. This is not related to bpf. Will remove the "bpf" from the
subject line in the next revision.
>
> Thank you.
>
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