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Date: Tue, 24 Mar 2015 08:20:07 -0700 From: John Stultz <john.stultz@...aro.org> To: Peter Zijlstra <peterz@...radead.org> Cc: Thomas Gleixner <tglx@...utronix.de>, Paweł Moll <pawel.moll@....com>, Adrian Hunter <adrian.hunter@...el.com>, Ingo Molnar <mingo@...nel.org>, Stephane Eranian <eranian@...gle.com>, lkml <linux-kernel@...r.kernel.org>, Arnaldo Carvalho de Melo <acme@...nel.org>, David Ahern <dsahern@...il.com>, Frédéric Weisbecker <fweisbec@...il.com>, Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...il.com>, Paul Mackerras <paulus@...ba.org>, Steven Rostedt <rostedt@...dmis.org>, Sonny Rao <sonnyrao@...omium.org>, "ak@...ux.intel.com" <ak@...ux.intel.com>, vincent.weaver@...ne.edu Subject: Re: [RFC][PATCH 0/4] Another go at ktime_get_raw_fast_ns() On Thu, Mar 19, 2015 at 2:31 AM, Peter Zijlstra <peterz@...radead.org> wrote: > Hi John, > > So yeah, I just didn't try hard enough it seems; how about this? Yea, this looks much better! I'll queue it up for testing and if that goes well include it for 4.1. > Also, I think we should double check that everything passed to > tk_setup_internals(.clock) is either static storage or RCU-sched freed, > because with the whole latch thing one CPUs (fast) access might still be > in progress while the other is freeing the clock struct. > > Not sure what the lifetime rules of struct clocksource are here. At one point it was install and never remove, but I think Thomas changed that awhile back, so I think your concern here is a good one. thanks -john -- 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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