Peter Zijlstra fb7d4948c4 sched/clock: Provide local_clock_noinstr() ... Now that all ARCH_WANTS_NO_INSTR architectures (arm64, loongarch, s390, x86) provide sched_clock_noinstr(), use this to provide local_clock_noinstr(). This local_clock_noinstr() will be safe to use from noinstr code with the assumption that any such noinstr code is non-preemptible (it had better be, entry code will have IRQs disabled while __cpuidle must have preemption disabled). Specifically, preempt_enable_notrace(), a common part of many a sched_clock() implementation calls out to schedule() -- even though, per the above, it will never trigger -- which frustrates noinstr validation. vmlinux.o: warning: objtool: local_clock+0xb5: call to preempt_schedule_notrace_thunk() leaves .noinstr.text section Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Michael Kelley <mikelley@microsoft.com> # Hyper-V Link: https://lore.kernel.org/r/20230519102715.978624636@infradead.org		2023-06-05 21:11:09 +02:00
..
affinity.h
autogroup.h
clock.h	sched/clock: Provide local_clock_noinstr()	2023-06-05 21:11:09 +02:00
cond_resched.h
coredump.h	mm: add new api to enable ksm per process	2023-04-21 14:52:03 -07:00
cpufreq.h
cputime.h
deadline.h
debug.h
hotplug.h
idle.h
init.h
isolation.h	sched/isolation: add cpu_is_isolated() API	2023-04-18 16:29:43 -07:00
jobctl.h
loadavg.h
mm.h	IOMMU Updates for Linux 6.4	2023-04-30 13:00:38 -07:00
nohz.h
numa_balancing.h
posix-timers.h
prio.h
rseq_api.h
rt.h
sd_flags.h	sched/topology: Remove SHARED_CHILD from ASYM_PACKING	2023-05-08 10:58:37 +02:00
signal.h
smt.h
stat.h
sysctl.h
task_flags.h
task_stack.h	sched: Fix KCSAN noinstr violation	2023-04-14 16:08:26 +02:00
task.h	fork: allow kernel code to call copy_process	2023-03-12 10:54:43 +01:00
thread_info_api.h
topology.h
types.h
user.h
vhost_task.h	vhost_task: Allow vhost layer to use copy_process	2023-03-23 12:45:36 +01:00
wake_q.h
xacct.h