Re: trace/events: DECLARE vs DEFINE semantic

[Steven Rostedt <rostedt@xxxxxxxxxxx>]

On Thu, 2009-12-03 at 10:31 -0500, Masami Hiramatsu wrote:
> Steven Rostedt wrote:

> >> Would you mean putting those headers in sub-system's directory?
> >> (e.g. fs/ext4/)
> >> In that case, a problem will happen when user want to hook those
> >> tracepoint from their module, because it is hard to find those
> >> local headers.
> > 
> > Why? Modules usually do have their own headers in their sub system.
> 
> Module's local headers usually uses only from itself. Other modules
> may not touch it. However, AFAIK, event definitions must be referred
> by event consumer which is another module. IOW, those local headers
> will not be included in kernel-headers/kernel-devel package :-(

I'm a little confused. Who is the event consumer? The trace point user?
The one that hooks into the tracepoint?

-- Steve


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