xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse Source 
Pull NOHZ updates from Ingo Molnar:
 "NOHZ enhancements, by Frederic Weisbecker, which reorganizes/refactors
  the NOHZ 'can the tick be stopped?' infrastructure and related code to
  be data driven, and harmonizes the naming and handling of all the
  various properties"

[ This makes the ugly "fetch_or()" macro that the scheduler used
  internally a new generic helper, and does a bad job at it.

  I'm pulling it, but I've asked Ingo and Frederic to get this
  fixed up ]

* 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched-clock: Migrate to use new tick dependency mask model
  posix-cpu-timers: Migrate to use new tick dependency mask model
  sched: Migrate sched to use new tick dependency mask model
  sched: Account rr tasks
  perf: Migrate perf to use new tick dependency mask model
  nohz: Use enum code for tick stop failure tracing message
  nohz: New tick dependency mask
  nohz: Implement wide kick on top of irq work
  atomic: Export fetch_or()
This commit is contained in:
Linus Torvalds
2016-03-14 19:44:38 -07:00
parent d4e796152a 1f25184656
commit e23604edac
14 changed files with 424 additions and 161 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
include/trace/events/timer.h
View File

@@ -328,23 +328,49 @@ TRACE_EVENT(itimer_expire,
);
#ifdef CONFIG_NO_HZ_COMMON
#define TICK_DEP_NAMES \
tick_dep_name(NONE) \
tick_dep_name(POSIX_TIMER) \
tick_dep_name(PERF_EVENTS) \
tick_dep_name(SCHED) \
tick_dep_name_end(CLOCK_UNSTABLE)
#undef tick_dep_name
#undef tick_dep_name_end
#define tick_dep_name(sdep) TRACE_DEFINE_ENUM(TICK_DEP_MASK_##sdep);
#define tick_dep_name_end(sdep) TRACE_DEFINE_ENUM(TICK_DEP_MASK_##sdep);
TICK_DEP_NAMES
#undef tick_dep_name
#undef tick_dep_name_end
#define tick_dep_name(sdep) { TICK_DEP_MASK_##sdep, #sdep },
#define tick_dep_name_end(sdep) { TICK_DEP_MASK_##sdep, #sdep }
#define show_tick_dep_name(val) \
__print_symbolic(val, TICK_DEP_NAMES)
TRACE_EVENT(tick_stop,
TP_PROTO(int success, char *error_msg),
TP_PROTO(int success, int dependency),
TP_ARGS(success, error_msg),
TP_ARGS(success, dependency),
TP_STRUCT__entry(
__field( int , success )
__string( msg, error_msg )
__field( int , dependency )
),
TP_fast_assign(
__entry->success = success;
__assign_str(msg, error_msg);
__entry->dependency = dependency;
),
TP_printk("success=%s msg=%s", __entry->success ? "yes" : "no", __get_str(msg))
TP_printk("success=%d dependency=%s", __entry->success, \
show_tick_dep_name(__entry->dependency))
);
#endif