Am Dienstag, 21. Juni 2016, 10:12:24 schrieb John Stultz: Hi John, > > So this is definitely more clear then what was described earlier, and > worries me because on many x86 machines (though fewer I guess these > days then in the past) the clocksource will often not be the TSC (and > have lower resolution).
Please note, the use of the ktime_get_raw_ns() is *only* used as a fallback on architectures where random_get_entropy / get_cycles is not implemented. So, on X86 and on many other arches, this function call will never be triggered. ... > > But please just make sure the reason why you're using that specific > interface is clearly documented in the code so we don't have to later > reverse engineer the intent. Will do. @Arnd: I would prepare a patch then using ktime_get_raw_ns and providing a good documentation in the code. Ciao Stephan
