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SubjectRe: [PATCH v2 -tip 3/4] tracing: make a snapshot feature available from userspace
(12/15/2012 02:08 AM), Steven Rostedt wrote:
> On Fri, 2012-12-07 at 11:07 +0900, Hiraku Toyooka wrote:
>> Hi, Steven,
>>
>> (2012/11/30 23:17), Steven Rostedt wrote:
>> [snip]
>> >
>> > Actually, I would have:
>> >
>> > status\input | 0 | 1 | else |
>> > --------------+------------+------------+------------+
>> > not allocated |(do nothing)| alloc+swap | EINVAL |
>> > --------------+------------+------------+------------+
>> > allocated | free | swap | clear |
>> > --------------+------------+------------+------------+
>> >
>> > Perhaps we don't need to do the clear on swap, just let the trace
>> > continue where it left off? But in case we should swap...
>> >
>>
>> I think we don't need the clear on swap too.
>> I'll update my patches like this table.
>>
>> > There's a fast way to clear the tracer. Look at what the wakeup tracer
>> > does. We can make that generic. If you want, I can write that code up
>> > too. Hmm, maybe I'll do that, as it will speed things up for
>> > everyone :-)
>> >
>>
>
> BTW, any update on this? I really like to get this into 3.9.
>

I'm applying your review comment and rebasing now. So, I'll post the
updated patch series in a few days.

Thanks,
Hiraku Toyooka



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