Re: [RFC 2/2] perf: Marker software event and ioctl

On Sun, 2014-09-14 at 16:43 +0100, David Ahern wrote:

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Seems really similar to what I proposed in the past:

Yeah, it wasn't really hard to come with similar conclusions :-)

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https://lkml.org/lkml/2011/2/27/159

Which was rejected.

I took a look at that thread, but just barely, emphasis on that.

Injecting something from userspace, a la ftrace, seems to be something,
as tglx mentioned, "buried" in that patchset.

Thomas object to an ioctl buried deep in a patch -- newbie mistake.

Peter objected to the ioctl https://lkml.org/lkml/2011/3/1/229

It was not userspace injecting random data into the stream but rather 
forcing the sample to be generated and added to the stream.

I would like to hear from Peter and others. If not here, I'll get them
to talk next month on Linux Plumbers :-)

Pawel