Re: [PATCH v2 1/1] ftrace: do not update max buffer with no users

From: Steven Rostedt
Date: Thu Nov 13 2008 - 08:59:36 EST



On Thu, 13 Nov 2008, Steven Rostedt wrote:

> Right now I'm thinking my other suggestion is the best. Just allocate the
> max_tr.buffer and get rid of the CONFIG. This solution is very small, and
> covers all corner cases.

And for 29, we can change the code so that the max_tr buffer is only
allocated by request of a tracer at plugin time. In which we can do tests
if the max_tr.buffer exists in the use cases, and warn if it does not (a
plugin needs to request a max_tr buffer before using update_max_tr).

-- Steve

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