6e33cad0af
In order to not have to use pid_struct, create a new, smaller, structure to manage task cookies for core scheduling. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Don Hiatt <dhiatt@digitalocean.com> Tested-by: Hongyu Ning <hongyu.ning@linux.intel.com> Tested-by: Vincent Guittot <vincent.guittot@linaro.org> Link: https://lkml.kernel.org/r/20210422123308.919768100@infradead.org
1.7 KiB
SPDX-License-Identifier: GPL-2.0
ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_clock.o = $(CC_FLAGS_FTRACE) endif
These files are disabled because they produce non-interesting flaky coverage
that is not a function of syscall inputs. E.g. involuntary context switches.
KCOV_INSTRUMENT := n
There are numerous data races here, however, most of them are due to plain accesses.
This would make it even harder for syzbot to find reproducers, because these
bugs trigger without specific input. Disable by default, but should re-enable
eventually.
KCSAN_SANITIZE := n
ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y)
According to Alan Modra alan@linuxcare.com.au, the -fno-omit-frame-pointer is
needed for x86 only. Why this used to be enabled for all architectures is beyond
me. I suspect most platforms don't need this, but until we know that for sure
I turn this off for IA-64 only. Andreas Schwab says it's also needed on m68k
to get a correct value for the wait-channel (WCHAN in ps). --davidm
CFLAGS_core.o := $(PROFILING) -fno-omit-frame-pointer endif
obj-y += core.o loadavg.o clock.o cputime.o obj-y += idle.o fair.o rt.o deadline.o obj-y += wait.o wait_bit.o swait.o completion.o
obj-$(CONFIG_SMP) += cpupri.o cpudeadline.o topology.o stop_task.o pelt.o obj-$(CONFIG_SCHED_AUTOGROUP) += autogroup.o obj-$(CONFIG_SCHEDSTATS) += stats.o obj-$(CONFIG_SCHED_DEBUG) += debug.o obj-$(CONFIG_CGROUP_CPUACCT) += cpuacct.o obj-$(CONFIG_CPU_FREQ) += cpufreq.o obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o obj-$(CONFIG_MEMBARRIER) += membarrier.o obj-$(CONFIG_CPU_ISOLATION) += isolation.o obj-$(CONFIG_PSI) += psi.o obj-$(CONFIG_SCHED_CORE) += core_sched.o