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71d078803ccbc020ae3b640293a40a86691b9151
linux/kernel
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Changwoo Min 71d078803c sched_ext: Add trace point to track sched_ext core events 
Add tracing support to track sched_ext core events
(/sched_ext/sched_ext_event). This may be useful for debugging sched_ext
schedulers that trigger a particular event.

The trace point can be used as other trace points, so it can be used in,
for example, `perf trace` and BPF programs, as follows:

======
$> sudo perf trace -e sched_ext:sched_ext_event --filter 'name == "SCX_EV_ENQ_SLICE_DFL"'
======

======
struct tp_sched_ext_event {
	struct trace_entry ent;
	u32 __data_loc_name;
	s64 delta;
};

SEC("tracepoint/sched_ext/sched_ext_event")
int rtp_add_event(struct tp_sched_ext_event *ctx)
{
	char event_name[128];
	unsigned short offset = ctx->__data_loc_name & 0xFFFF;
        bpf_probe_read_str((void *)event_name, 128, (char *)ctx + offset);

	bpf_printk("name %s   delta %lld", event_name, ctx->delta);
	return 0;
}
======

Signed-off-by: Changwoo Min <changwoo@igalia.com>
Acked-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2025-03-04 08:06:17 -10:00
..
bpf
Merge tag 'bpf-next-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2025-01-23 08:04:07 -08:00
cgroup
Merge tag 'drm-next-2025-01-17' of https://gitlab.freedesktop.org/drm/kernel
2025-01-21 16:09:47 -08:00
configs
configs/debug: make sure PROVE_RCU_LIST=y takes effect
2024-10-28 10:21:09 -07:00
debug
kdb: fix ctrl+e/a/f/b/d/p/n broken in keyboard mode
2024-11-18 15:20:22 +00:00
dma
dma-debug: fix physical address calculation for struct dma_debug_entry
2024-11-28 10:19:16 +01:00
entry
sched: Add TIF_NEED_RESCHED_LAZY infrastructure
2024-11-05 12:55:37 +01:00
events
Merge tag 'perf-core-2025-01-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-01-21 10:52:03 -08:00
futex
sched/wake_q: Add helper to call wake_up_q after unlock with preemption disabled
2024-12-20 15:31:21 +01:00
gcov
gcov: add support for GCC 14
2024-06-15 10:43:06 -07:00
irq
Merge tag 'irq-core-2025-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-01-21 13:51:07 -08:00
kcsan
kcsan: Remove redundant call of kallsyms_lookup_name()
2024-10-14 16:44:56 +02:00
livepatch
livepatch: Add stack_order sysfs attribute
2024-12-09 11:44:03 +01:00
locking
Merge tag 'rcu.release.v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
2025-01-21 14:39:21 -08:00
module
module: Convert symbol namespace to string literal
2024-12-02 11:34:44 -08:00
power
Merge branches 'pm-sleep', 'pm-cpuidle' and 'pm-em'
2025-01-20 19:14:15 +01:00
printk
Merge branch 'for-6.14-cpu_sync-fixup' into for-linus
2025-01-20 13:40:52 +01:00
rcu
Merge tag 'kthread-for-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks
2025-01-21 17:10:05 -08:00
sched
sched_ext: Add trace point to track sched_ext core events
2025-03-04 08:06:17 -10:00
time
Merge tag 'timers-core-2025-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-01-21 13:16:00 -08:00
trace
Merge tag 'trace-ringbuffer-v6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2025-01-23 18:02:55 -08:00
.gitignore
…
acct.c
acct: avoid pointless reference count bump
2024-12-02 11:25:13 +01:00
async.c
async: Use a dedicated unbound workqueue with raised min_active
2024-02-09 11:13:59 -10:00
audit_fsnotify.c
…
audit_tree.c
fsnotify: create a wrapper fsnotify_find_inode_mark()
2024-04-04 16:24:16 +02:00
audit_watch.c
fsnotify: create a wrapper fsnotify_find_inode_mark()
2024-04-04 16:24:16 +02:00
audit.c
lsm: replace context+len with lsm_context
2024-12-04 14:42:31 -05:00
audit.h
audit: change context data from secid to lsm_prop
2024-10-11 14:34:16 -04:00
auditfilter.c
audit: fix suffixed '/' filename matching
2024-12-05 19:22:38 -05:00
auditsc.c
Merge tag 'lsm-pr-20250121' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
2025-01-21 20:03:04 -08:00
backtracetest.c
backtracetest: add MODULE_DESCRIPTION()
2024-06-24 22:24:55 -07:00
bounds.c
bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS
2024-04-29 08:29:29 -07:00
capability.c
lsm: constify the 'target' parameter in security_capget()
2023-08-08 16:48:47 -04:00
cfi.c
…
compat.c
…
configs.c
…
context_tracking.c
context_tracking, rcu: Rename rcu_dyntick trace event into rcu_watching
2024-08-15 21:30:43 +05:30
cpu_pm.c
…
cpu.c
hrtimers: Handle CPU state correctly on hotplug
2025-01-16 13:06:14 +01:00
crash_core.c
kexec/crash: no crash update when kexec in progress
2024-11-05 17:12:27 -08:00
crash_reserve.c
crash: fix crash memory reserve exceed system memory bug
2024-09-01 20:43:30 -07:00
cred.c
cred: remove old {override,revert}_creds() helpers
2024-12-02 11:25:09 +01:00
delayacct.c
sysctl: treewide: constify the ctl_table argument of proc_handlers
2024-07-24 20:59:29 +02:00
dma.c
…
elfcorehdr.c
crash: remove dependency of FA_DUMP on CRASH_DUMP
2024-02-23 17:48:22 -08:00
exec_domain.c
…
exit.c
remove pointless includes of <linux/fdtable.h>
2024-10-07 13:34:41 -04:00
exit.h
exit: add internal include file with helpers
2023-09-21 12:03:50 -06:00
extable.c
…
fail_function.c
…
fork.c
Merge tag 'fsnotify_hsm_for_v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2025-01-23 13:36:06 -08:00
freezer.c
sched/fair: Fix external p->on_rq users
2024-10-14 09:14:35 +02:00
gen_kheaders.sh
kheaders: Ignore silly-rename files
2024-12-20 22:07:55 +01:00
groups.c
groups: Convert group_info.usage to refcount_t
2023-09-29 11:28:39 -07:00
hung_task.c
hung_task: add detect count for hung tasks
2024-11-11 17:17:03 -08:00
iomem.c
kernel/iomem.c: remove __weak ioremap_cache helper
2023-08-21 13:37:28 -07:00
irq_work.c
…
jump_label.c
jump_label: Fix static_key_slow_dec() yet again
2024-09-10 11:57:27 +02:00
kallsyms_internal.h
kallsyms: get rid of code for absolute kallsyms
2024-07-20 16:33:21 +09:00
kallsyms_selftest.c
kallsyms: Use kthread_run_on_cpu()
2025-01-02 22:12:12 +01:00
kallsyms_selftest.h
…
kallsyms.c
kallsyms: Match symbols exactly with CONFIG_LTO_CLANG
2024-08-15 09:33:35 -07:00
kcmp.c
get rid of ...lookup...fdget_rcu() family
2024-10-07 13:34:41 -04:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.kexec
crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32
2024-11-14 22:43:48 -08:00
Kconfig.locks
…
Kconfig.preempt
sched: No PREEMPT_RT=y for all{yes,mod}config
2024-11-07 15:25:05 +01:00
kcov.c
kcov: mark in_softirq_really() as __always_inline
2024-12-30 17:59:08 -08:00
kexec_core.c
kexec_core: Add and update comments regarding the KEXEC_JUMP flow
2025-01-14 13:03:34 +01:00
kexec_elf.c
…
kexec_file.c
kexec_file: fix elfcorehdr digest exclusion when CONFIG_CRASH_HOTPLUG=y
2024-09-01 17:59:01 -07:00
kexec_internal.h
kexec: use atomic_try_cmpxchg_acquire() in kexec_trylock()
2024-09-01 20:43:23 -07:00
kexec.c
crash: add a new kexec flag for hotplug support
2024-04-23 14:59:01 +10:00
kheaders.c
…
kprobes.c
kprobes: Remove remaining gotos
2025-01-10 09:00:13 +09:00
ksyms_common.c
…
ksysfs.c
profiling: remove prof_cpu_mask
2024-07-29 10:45:54 -07:00
kthread.c
Merge tag 'kthread-for-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks
2025-01-21 17:10:05 -08:00
latencytop.c
sysctl: treewide: constify the ctl_table argument of proc_handlers
2024-07-24 20:59:29 +02:00
Makefile
mm: move kernel/numa.c to mm/
2024-09-03 21:15:26 -07:00
module_signature.c
…
notifier.c
reboot: move reboot_notifier_list to kernel/reboot.c
2024-11-05 17:12:31 -08:00
nsproxy.c
fdget(), trivial conversions
2024-11-03 01:28:06 -05:00
padata.c
padata: avoid UAF for reorder_work
2025-01-19 12:44:28 +08:00
panic.c
Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel
2024-09-19 10:18:15 +02:00
params.c
params: Fix multi-line comment style
2023-12-01 09:51:44 -08:00
pid_namespace.c
pid: allow pid_max to be set per pid namespace
2024-12-02 11:25:25 +01:00
pid_sysctl.h
sysctl: treewide: constify the ctl_table argument of proc_handlers
2024-07-24 20:59:29 +02:00
pid.c
Merge tag 'kernel-6.14-rc1.pid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-01-20 10:29:11 -08:00
profile.c
profiling: remove profile=sleep support
2024-08-04 13:36:28 -07:00
ptrace.c
ptrace_attach: shift send(SIGSTOP) into ptrace_set_stopped()
2024-02-22 15:38:52 -08:00
range.c
…
reboot.c
kernel/reboot: replace sprintf() with sysfs_emit()
2024-11-11 17:17:05 -08:00
regset.c
regset: use kvzalloc() for regset_get_alloc()
2024-04-25 21:07:03 -07:00
relay.c
[tree-wide] finally take no_llseek out
2024-09-27 08:18:43 -07:00
resource_kunit.c
resource, kunit: fix user-after-free in resource_test_region_intersects()
2024-10-09 12:47:19 -07:00
resource.c
module: Convert symbol namespace to string literal
2024-12-02 11:34:44 -08:00
rseq.c
rseq: Fix rseq unregistration regression
2025-01-21 08:10:51 +01:00
scftorture.c
scftorture: Handle NULL argument passed to scf_add_to_free_list().
2024-11-14 16:09:51 -08:00
scs.c
…
seccomp.c
sysctl: treewide: constify the ctl_table argument of proc_handlers
2024-07-24 20:59:29 +02:00
signal.c
signal/posixtimers: Handle ignore/blocked sequences correctly
2025-01-15 18:08:01 +01:00
smp.c
smp/scf: Evaluate local cond_func() before IPI side-effects
2024-12-05 14:25:28 +01:00
smpboot.c
kthread: add kthread_stop_put
2023-10-04 10:41:57 -07:00
smpboot.h
…
softirq.c
softirq: Allow raising SCHED_SOFTIRQ from SMP-call-function on RT kernel
2024-12-02 12:01:27 +01:00
stackleak.c
stackleak: Use str_enabled_disabled() helper in stack_erasing_sysctl()
2024-12-22 20:28:11 -08:00
stacktrace.c
stacktrace: fix kernel-doc typo
2023-12-29 12:22:29 -08:00
static_call_inline.c
x86/static-call: provide a way to do very early static-call updates
2024-12-13 09:28:32 +01:00
static_call.c
…
stop_machine.c
rcu: Rename rcu_momentary_dyntick_idle() into rcu_momentary_eqs()
2024-08-15 21:30:42 +05:30
sys_ni.c
Merge tag 'probes-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2024-07-18 12:19:20 -07:00
sys.c
tracing: Add task_prctl_unknown tracepoint
2024-12-22 20:28:11 -08:00
sysctl-test.c
sysctl: Add module description to sysctl-testing
2024-06-03 15:20:37 +02:00
sysctl.c
pid: allow pid_max to be set per pid namespace
2024-12-02 11:25:25 +01:00
task_work.c
sched/core: Disable page allocation in task_tick_mm_cid()
2024-10-11 10:49:32 +02:00
taskstats.c
fdget(), more trivial conversions
2024-11-03 01:28:06 -05:00
torture.c
torture: Add MODULE_DESCRIPTION()
2024-05-30 15:31:38 -07:00
tracepoint.c
tracing: Fix syscall tracepoint use-after-free
2024-11-01 14:37:31 -04:00
tsacct.c
tsacct: replace strncpy() with strscpy()
2024-07-12 16:39:53 -07:00
ucount.c
Merge tag 'sysctl-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
2024-11-22 20:36:11 -08:00
uid16.c
…
uid16.h
…
umh.c
remove pointless includes of <linux/fdtable.h>
2024-10-07 13:34:41 -04:00
up.c
smp: Change function signatures to use call_single_data_t
2023-09-13 14:59:24 +02:00
user_namespace.c
user_namespace: use kmemdup_array() instead of kmemdup() for multiple allocation
2024-09-09 16:47:42 -07:00
user-return-notifier.c
…
user.c
uidgid: make sure we fit into one cacheline
2024-09-12 12:16:09 +02:00
usermode_driver.c
…
utsname_sysctl.c
sysctl: treewide: constify the ctl_table argument of proc_handlers
2024-07-24 20:59:29 +02:00
utsname.c
…
vhost_task.c
vhost_task: Handle SIGKILL by flushing work and exiting
2024-05-22 08:31:15 -04:00
vmcore_info.c
mm: support only one page_type per page
2024-09-03 21:15:43 -07:00
watch_queue.c
watch_queue: Use page->private instead of page->index
2024-12-22 11:29:51 +01:00
watchdog_buddy.c
…
watchdog_perf.c
watchdog/perf: properly initialize the turbo mode timestamp and rearm counter
2024-07-17 21:11:34 -07:00
watchdog.c
Merge tag 'mm-nonmm-stable-2024-11-24-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-11-25 16:09:48 -08:00
workqueue_internal.h
workqueue: Drop the special locking rule for worker->flags and worker_pool->flags
2023-08-07 15:57:22 -10:00
workqueue.c
Merge tag 'kthread-for-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks
2025-01-21 17:10:05 -08:00