Song Liu bae77c5eb5 bpf: enable stackmap with build_id in nmi context ... Currently, we cannot parse build_id in nmi context because of up_read(&current->mm->mmap_sem), this makes stackmap with build_id less useful. This patch enables parsing build_id in nmi by putting the up_read() call in irq_work. To avoid memory allocation in nmi context, we use per cpu variable for the irq_work. As a result, only one irq_work per cpu is allowed. If the irq_work is in-use, we fallback to only report ips. Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2018-05-14 23:29:45 +02:00
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bpf	bpf: enable stackmap with build_id in nmi context	2018-05-14 23:29:45 +02:00
cgroup
configs
debug
events	Various fixes in tracing:	2018-05-02 17:38:37 -10:00
gcov
irq
livepatch
locking
power
printk
rcu
sched
time	Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME	2018-04-26 14:53:32 +02:00
trace	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2018-05-07 23:35:08 -04:00
.gitignore
acct.c
async.c
audit.c
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
compat.c
configs.c
context_tracking.c
cpu.c
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c
extable.c
fail_function.c
fork.c	fork: unconditionally clear stack on fork	2018-04-20 17:18:35 -07:00
freezer.c
futex.c
futex_compat.c
groups.c
hung_task.c
irq_work.c
jump_label.c
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.c
kexec_core.c
kexec_file.c
kexec_internal.h
kmod.c
kprobes.c	kprobes: Fix random address output of blacklist file	2018-04-25 10:27:56 -04:00
ksysfs.c
kthread.c
latencytop.c
Makefile
memremap.c
module-internal.h
module.c	module: Fix display of wrong module .text address	2018-04-18 22:59:46 +02:00
module_signing.c
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid.c
pid_namespace.c
profile.c
ptrace.c
range.c
reboot.c
relay.c
resource.c
seccomp.c
signal.c
smp.c
smpboot.c
smpboot.h
softirq.c
stacktrace.c
stop_machine.c
sys.c
sys_ni.c
sysctl.c
sysctl_binary.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Do not warn on ENOMEM	2018-04-30 12:09:56 -04:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
watchdog.c
watchdog_hld.c
workqueue.c
workqueue_internal.h