linux-kernel - Re: [RFC PATCH 2/3] tracing, perf: Implement BPF programs attached to uprobes

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Message-ID: <558D1135.8080709@plumgrid.com>
Date:	Fri, 26 Jun 2015 01:45:41 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	Wang Nan <wangnan0@...wei.com>, acme@...nel.org,
	brendan.d.gregg@...il.com, daniel@...earbox.net,
	namhyung@...nel.org, masami.hiramatsu.pt@...achi.com,
	paulus@...ba.org, a.p.zijlstra@...llo.nl, mingo@...hat.com,
	jolsa@...nel.org, dsahern@...il.com
CC:	linux-kernel@...r.kernel.org, lizefan@...wei.com,
	hekuang@...wei.com, xiakaixu@...wei.com, pi3orama@....com
Subject: Re: [RFC PATCH 2/3] tracing, perf: Implement BPF programs attached
 to uprobes

On 6/25/15 3:37 AM, Wang Nan wrote:
> By copying BPF related operation to uprobe processing path, this patch
> allow users attach BPF programs to uprobes like what they are already
> doing on kprobes.
>
> After this patch, users are allowed to use PERF_EVENT_IOC_SET_BPF on a
> uprobe perf event. Which make it possible to profile user space programs
> and kernel events together using BPF.
>
> Signed-off-by: Wang Nan <wangnan0@...wei.com>

That's great.
Acked-by: Alexei Starovoitov <ast@...mgrid.com>

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