Namhyung Kim fcf9ccf9d2 perf/core: Inherit event_caps ... commit e3265a4386 upstream. It was reported that some perf event setup can make fork failed on ARM64. It was the case of a group of mixed hw and sw events and it failed in perf_event_init_task() due to armpmu_event_init(). The ARM PMU code checks if all the events in a group belong to the same PMU except for software events. But it didn't set the event_caps of inherited events and no longer identify them as software events. Therefore the test failed in a child process. A simple reproducer is: $ perf stat -e '{cycles,cs,instructions}' perf bench sched messaging # Running 'sched/messaging' benchmark: perf: fork(): Invalid argument The perf stat was fine but the perf bench failed in fork(). Let's inherit the event caps from the parent. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <stable@vger.kernel.org> Link: https://lkml.kernel.org/r/20220328200112.457740-1-namhyung@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-13 20:59:24 +02:00
..
bpf	bpf: Adjust BPF stack helper functions to accommodate skip > 0	2022-04-08 14:24:14 +02:00
cgroup
configs
debug	kdb: Fix the putarea helper function	2022-04-08 14:23:51 +02:00
dma	swiotlb: Support aligned swiotlb buffers	2022-04-08 14:24:17 +02:00
entry
events	perf/core: Inherit event_caps	2022-04-13 20:59:24 +02:00
gcov
irq
kcsan
livepatch	livepatch: Fix build failure on 32 bits processors	2022-04-08 14:23:29 +02:00
locking	locking/lockdep: Iterate lock_classes directly when reading lockdep files	2022-04-08 14:23:57 +02:00
power	PM: suspend: fix return value of __setup handler	2022-04-08 14:23:07 +02:00
printk	printk: fix return value of printk.devkmsg __setup handler	2022-04-08 14:23:19 +02:00
rcu	rcu: Mark writes to the rcu_segcblist structure's ->flags field	2022-04-08 14:23:55 +02:00
sched	sched/rt: Plug rt_mutex_setprio() vs push_rt_task() race	2022-04-08 14:23:11 +02:00
time
trace	tracing: Have type enum modifications copy the strings	2022-04-08 14:24:13 +02:00
.gitignore
acct.c
async.c
audit_fsnotify.c
audit_tree.c
audit_watch.c
audit.c
audit.h	audit: log AUDIT_TIME_* records only from rules	2022-04-08 14:23:06 +02:00
auditfilter.c
auditsc.c	audit: log AUDIT_TIME_* records only from rules	2022-04-08 14:23:06 +02:00
backtracetest.c
bounds.c
capability.c
cfi.c
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c
extable.c
fail_function.c
fork.c	sched: Fix yet more sched_fork() races	2022-03-08 19:12:49 +01:00
freezer.c
futex.c
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec_core.c
kexec_elf.c
kexec_file.c
kexec_internal.h
kexec.c
kheaders.c
kmod.c
kprobes.c
ksysfs.c
kthread.c
latencytop.c
Makefile
module_signature.c
module_signing.c
module-internal.h
module.c
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid_namespace.c
pid.c
profile.c
ptrace.c	ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE	2022-04-08 14:22:50 +02:00
range.c
reboot.c
regset.c
relay.c
resource_kunit.c
resource.c	kernel/resource: fix kfree() of bootmem memory again	2022-04-08 14:23:43 +02:00
rseq.c	rseq: Remove broken uapi field layout on 32-bit little endian	2022-04-08 14:23:10 +02:00
scftorture.c
scs.c
seccomp.c
signal.c	signal: In get_signal test for signal_group_exit every time through the loop	2022-03-08 19:12:34 +01:00
smp.c
smpboot.c
smpboot.h
softirq.c
stackleak.c
stacktrace.c
static_call.c
stop_machine.c
sys_ni.c
sys.c
sysctl-test.c
sysctl.c	x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting	2022-03-11 12:22:31 +01:00
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user_namespace.c	ucounts: Fix systemd LimitNPROC with private users regression	2022-03-08 19:12:42 +01:00
user-return-notifier.c
user.c
usermode_driver.c
utsname_sysctl.c
utsname.c
watch_queue.c	watch_queue: Free the page array when watch_queue is dismantled	2022-04-08 14:24:11 +02:00
watchdog_hld.c
watchdog.c
workqueue_internal.h
workqueue.c