2016-10-31 12:36 GMT+00:00 Stanislaw Gruszka <sgruszka@xxxxxxxxxx>: > Patches remove accounting of utimescaled/stimescaled on architectures > that do not provide those values (scaled cputimes are equal to normal > cputimes) what is every architecture except powerpc and s390. > > Patches do not change user visible behaviour. > > There is very little documentation how scaled cputimes should be > interpreted and what useful information they provide (at least > I could not find that). Moreover they are exported to user-space > only via not commonly used taskstats and delayacct interfaces (i.e. > interfaces that are not used by standard linux tools AFICT). However > I assume they can not be removed by whole (i.e. replaced by normal > utimes/stimes on powerpc and s390). > > Stanislaw Gruszka (4): > cputime/powerpc: remove cputime_last_delta global variable > cputime/powerpc: remove cputime_to_scaled() > cputime/powerpc/s390: make scaled cputime arch specific > cputime: simplify task_cputime() > > arch/ia64/kernel/time.c | 4 +- > arch/powerpc/Kconfig | 1 + > arch/powerpc/include/asm/cputime.h | 14 ---- > arch/powerpc/kernel/time.c | 8 +- > arch/s390/Kconfig | 1 + > arch/s390/kernel/vtime.c | 9 ++- > arch/x86/kernel/apm_32.c | 4 +- > include/asm-generic/cputime_jiffies.h | 1 - > include/asm-generic/cputime_nsecs.h | 1 - > include/linux/kernel_stat.h | 4 +- > include/linux/sched.h | 29 +++++--- > kernel/fork.c | 2 + > kernel/sched/cputime.c | 124 +++++++++------------------------ > kernel/time/posix-cpu-timers.c | 4 +- > 14 files changed, 73 insertions(+), 133 deletions(-) > Excellent patchset! Thanks a lot Stanislaw! Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
