On Sat, Jan 19, 2013 at 7:28 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > On Friday, January 18, 2013 01:52:31 PM Nishanth Menon wrote: >> Hi, >> Despite being documented in function documentation and in >> Documentation/power/opp.txt, many of the users of OPP APIs >> dont honor RCU lock usage appropriately. >> >> This recently appeared in IRC discussion earlier today [1]. >> I did an audit of current usage and the following series >> is a result of this. >> >> NOTE: >> 1. The patch "PM / devfreq: exynos4_bus: honor RCU lock usage" has only >> been build tested as I dont have an exynos platform to try it on. I have >> tried to make it as least intrusive as possible and at least reviewed >> to ensure I haven't screwed anything up. >> >> Other than this, I have added appropriate tested by information in requisite >> patches. > > Thanks for the fixes. > > MyungJoo, do you want me to take the devfreq ones too? > > Rafael Yes, please take RCU-OPP patches. Having those patches splitted doesn't seem beneficial. I'll let other devfreq patches be based on this after you get them applied. Cheers, MyungJoo > > >> Series is based off: v3.8-rc4 tag >> Also available in the following location[2]: >> https://github.com/nmenon/linux-2.6-playground branch: post/pm/opp-fixes-v1 >> >> Nishanth Menon (4): >> cpufreq: OMAP: use RCU locks around usage of OPP >> cpufreq: cpufreq-cpu0: use RCU locks around usage of OPP >> PM / devfreq: add locking documentation for recommend_opp >> PM / devfreq: exynos4_bus: honor RCU lock usage >> >> drivers/cpufreq/cpufreq-cpu0.c | 5 +++ >> drivers/cpufreq/omap-cpufreq.c | 3 ++ >> drivers/devfreq/devfreq.c | 5 +++ >> drivers/devfreq/exynos4_bus.c | 94 ++++++++++++++++++++++++++++------------ >> 4 files changed, 80 insertions(+), 27 deletions(-) >> >> [1] http://www.beagleboard.org/irclogs/index.php?date=2013-01-18#T14:14:07 >> [2] https://github.com/nmenon/linux-2.6-playground/commits/post/pm/opp-fixes-v1 >> >> Regards, >> Nishanth Menon >> > -- > I speak only for myself. > Rafael J. Wysocki, Intel Open Source Technology Center. > -- > To unsubscribe from this list: send the line "unsubscribe linux-pm" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- MyungJoo Ham, Ph.D. Mobile Software Platform Lab, DMC Business, Samsung Electronics -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
