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Message-ID: <1322777407.4699.59.camel@twins> Date: Thu, 01 Dec 2011 23:10:07 +0100 From: Peter Zijlstra <peterz@...radead.org> To: Mathieu Desnoyers <mathieu.desnoyers@...icios.com> Cc: Greg KH <greg@...ah.com>, devel@...verdev.osuosl.org, lttng-dev@...ts.lttng.org, Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org, Darren Hart <darren@...art.com> Subject: Re: [PATCH 09/11] sched: export task_prio to GPL modules On Thu, 2011-12-01 at 17:04 -0500, Mathieu Desnoyers wrote: > * Peter Zijlstra (peterz@...radead.org) wrote: > > On Thu, 2011-12-01 at 16:41 -0500, Mathieu Desnoyers wrote: > > > LTTng needs this symbol to prepend the current task dynamic priority > > > value to events (optional context information). > > > > I absolutely detest exporting such stuff. It propagates the idea that > > task prio actually means something. Also, modules really shouldn't care. > > People debugging their SCHED_FIFO/SCHED_RR applications, as well as > users of priority-inheritance futexes, may happen to find this > information extremely useful. > > Just saying... Right until the moment we go do deadlines.. Anyway, it still doesn't make sense, your sched_switch() tracepoint handler gets this information, why do you need this export at all? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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