Yonghong Song bf6fa2c893 bpf: implement bpf_get_current_cgroup_id() helper ... bpf has been used extensively for tracing. For example, bcc contains an almost full set of bpf-based tools to trace kernel and user functions/events. Most tracing tools are currently either filtered based on pid or system-wide. Containers have been used quite extensively in industry and cgroup is often used together to provide resource isolation and protection. Several processes may run inside the same container. It is often desirable to get container-level tracing results as well, e.g. syscall count, function count, I/O activity, etc. This patch implements a new helper, bpf_get_current_cgroup_id(), which will return cgroup id based on the cgroup within which the current task is running. The later patch will provide an example to show that userspace can get the same cgroup id so it could configure a filter or policy in the bpf program based on task cgroup id. The helper is currently implemented for tracing. It can be added to other program types as well when needed. Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2018-06-03 18:22:41 -07:00
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bpf	bpf: implement bpf_get_current_cgroup_id() helper	2018-06-03 18:22:41 -07:00
cgroup	Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2018-04-03 18:00:13 -07:00
configs
debug	* Fix 2032 time access issues and new compiler warnings	2018-04-12 10:21:19 -07:00
events	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2018-05-24 22:20:51 -04:00
gcov
irq	genirq/affinity: Spread irq vectors among present CPUs as far as possible	2018-04-06 12:19:51 +02:00
livepatch	livepatch: Allow to call a custom callback when freeing shadow variables	2018-04-17 13:42:48 +02:00
locking	locking/percpu-rwsem: Annotate rwsem ownership transfer by setting RWSEM_OWNER_UNKNOWN	2018-05-16 11:45:16 +02:00
power	PM / QoS: mark expected switch fall-throughs	2018-04-09 13:49:40 +02:00
printk	New features:	2018-04-10 11:27:30 -07:00
rcu
sched	sched/deadline: Make the grub_reclaim() function static	2018-05-18 09:05:22 +02:00
time	tick/broadcast: Use for_each_cpu() specially on UP kernels	2018-05-15 22:45:54 +02:00
trace	bpf: implement bpf_get_current_cgroup_id() helper	2018-06-03 18:22:41 -07:00
.gitignore
acct.c
async.c
audit.c	audit/stable-4.17 PR 20180403	2018-04-06 15:01:25 -07:00
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
compat.c	compat: fix 4-byte infoleak via uninitialized struct field	2018-05-10 17:51:58 -07:00
configs.c
context_tracking.c
cpu.c
cpu_pm.c
crash_core.c	kexec: export PG_swapbacked to VMCOREINFO	2018-04-13 17:10:27 -07:00
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	kernel: use kernel_wait4() instead of sys_wait4()	2018-04-02 20:14:51 +02:00
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: call do_kexec_load() in compat syscall directly	2018-04-02 20:15:01 +02:00
kexec_core.c
kexec_file.c	kernel/kexec_file.c: allow archs to set purgatory load address	2018-04-13 17:10:28 -07:00
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	kthread, sched/wait: Fix kthread_parkme() completion issue	2018-05-03 07:38:05 +02:00
latencytop.c
Makefile
memremap.c
module-internal.h
module.c	init: fix false positives in W+X checking	2018-05-11 17:28:45 -07:00
module_signing.c
notifier.c
nsproxy.c
padata.c
panic.c	taint: add taint for randstruct	2018-04-11 10:28:35 -07:00
params.c	kernel/params.c: downgrade warning for unsafe parameters	2018-04-11 10:28:37 -07:00
pid.c	xarray: add the xa_lock to the radix_tree_root	2018-04-11 10:28:39 -07:00
pid_namespace.c	Merge branch 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2018-04-03 19:15:32 -07:00
profile.c
ptrace.c
range.c
reboot.c
relay.c
resource.c	resource: fix integer overflow at reallocation	2018-04-13 17:10:27 -07:00
seccomp.c	seccomp: Move speculation migitation control to arch code	2018-05-05 00:51:44 +02:00
signal.c	sched/core: Introduce set_special_state()	2018-05-04 07:54:54 +02:00
smp.c
smpboot.c
smpboot.h
softirq.c
stacktrace.c
stop_machine.c	stop_machine, sched: Fix migrate_swap() vs. active_balance() deadlock	2018-05-03 07:38:03 +02:00
sys.c	kernel/sys.c: fix potential Spectre v1 issue	2018-05-25 18:12:11 -07:00
sys_ni.c	syscalls/core: Prepare CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y for compat syscalls	2018-04-05 16:59:38 +02:00
sysctl.c	kernel/sysctl.c: add kdoc comments to do_proc_do{u}intvec_minmax_conv_param	2018-04-11 10:28:38 -07:00
sysctl_binary.c	staging: irda: remove remaining remants of irda code removal	2018-04-16 11:26:49 +02:00
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	headers: untangle kmemleak.h from mm.h	2018-04-05 21:36:27 -07:00
uid16.c	fs: add do_fchownat(), ksys_fchown() helpers and ksys_{,l}chown() wrappers	2018-04-02 20:15:59 +02:00
uid16.h	kernel: provide ksys_*() wrappers for syscalls called by kernel/uid16.c	2018-04-02 20:15:30 +02:00
umh.c	umh: introduce fork_usermode_blob() helper	2018-05-23 13:23:39 -04:00
up.c
user-return-notifier.c
user.c
user_namespace.c
utsname.c	uts: create "struct uts_namespace" from kmem_cache	2018-04-11 10:28:35 -07:00
utsname_sysctl.c
watchdog.c
watchdog_hld.c
workqueue.c	Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2018-04-03 18:00:13 -07:00
workqueue_internal.h