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ANDROID: vendor_hooks: Add hooks to recognize special worker thread.

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Recognize special worker thread.

Bug: 184571803
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Change-Id: I2ad112627eb18b98d0868bac6bd00bbfd84b34c4
This commit is contained in:
Liujie Xie
2021-04-06 11:27:34 +08:00
committed by Todd Kjos
parent af7214914a
commit 8f3f46d77c
3 changed files with 26 additions and 0 deletions
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2
drivers/android/vendor_hooks.c
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@@ -40,6 +40,7 @@
#include <trace/hooks/thermal.h>
#include <trace/hooks/ufshcd.h>
#include <trace/hooks/cgroup.h>
#include <trace/hooks/workqueue.h>
#include <trace/hooks/sys.h>
#include <trace/hooks/traps.h>
#include <trace/hooks/avc.h>
@@ -183,6 +184,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_uclamp_eff_get);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpufreq_transition);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cgroup_set_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_syscall_prctl_finished);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_create_worker);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_check_preempt_tick);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_check_preempt_wakeup_ignore);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_replace_next_task_fair);

22
include/trace/hooks/workqueue.h Normal file
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@@ -0,0 +1,22 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM workqueue
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_WORKQUEUE_H
#include <linux/tracepoint.h>
#include <trace/hooks/vendor_hooks.h>
/*
* Following tracepoints are not exported in tracefs and provide a
* mechanism for vendor modules to hook and extend functionality
*/
struct worker;
DECLARE_HOOK(android_vh_create_worker,
TP_PROTO(struct worker *worker, struct workqueue_attrs *attrs),
TP_ARGS(worker, attrs));
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_WORKQUEUE_H */
/* This part must be outside protection */
#include <trace/define_trace.h>

2
kernel/workqueue.c
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@@ -54,6 +54,7 @@
#include "workqueue_internal.h"
#include <trace/hooks/wqlockup.h>
#include <trace/hooks/workqueue.h>
/* events/workqueue.h uses default TRACE_INCLUDE_PATH */
#undef TRACE_INCLUDE_PATH
@@ -1948,6 +1949,7 @@ static struct worker *create_worker(struct worker_pool *pool)
if (IS_ERR(worker->task))
goto fail;
trace_android_vh_create_worker(worker, pool->attrs);
set_user_nice(worker->task, pool->attrs->nice);
kthread_bind_mask(worker->task, pool->attrs->cpumask);