On Thu, Apr 02, 2015 at 11:42:43AM -0400, Chris Metcalf wrote: > OK, I will respin v2 of the patch as follows: > > - Provide a watchdog_cpumask as suggested by Don. > - On a non-NO_HZ_FULL build, it defaults to cpu_possible as normal > - On a NO_HZ_FULL build, it defaults to the housekeeping cpus
Ah note that NO_HZ_FULL is only the capability. Nohz full is actually only running if the nohz_full parameter is passed (or NO_HZ_FULL_ALL=y). And now generalist distros enable NO_HZ_FULL so that anybody can use it. So better check tick_nohz_full_enabled() instead of the CONFIG. Thanks. > - If the mask is modified, we disable and then re-enable the watchdog, > so that the watchdog init code can exit() the appropriate threads as > they start up > > This should address the various concerns that have been raised. > > -- > Chris Metcalf, EZChip Semiconductor > http://www.ezchip.com > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
