Messages in this thread | | | Subject | Re: [PATCH x86/urgent] bpf: emulate push insns for uprobe on x86 | From | Yonghong Song <> | Date | Wed, 8 Nov 2017 16:10:19 -0800 |
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On 11/8/17 4:06 PM, David Miller wrote: > From: Yonghong Song <yhs@fb.com> > 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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