shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 10:58:48 +09:00
Code Issues Packages Projects Releases Wiki Activity

ANDROID: cgroup: Add vendor hook to the cgroup

Browse Source 
Add a vendor hook after attaching a task to a cgroup to 
recognize the group_id for performance tuning

Bug: 181917687

Signed-off-by: Frankie Chang <frankie.chang@mediatek.com>
Change-Id: I603afa3d893dd575a7dcb97f83bd9eacb8315bab
(cherry picked from commit de089a37a3d248608a1d5855a4ae82ebad3ec2ab)
This commit is contained in:
Frankie Chang
2021-01-12 14:07:38 +08:00
committed by Todd Kjos
parent a1cde586bd
commit 02a9f884d5
3 changed files with 21 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/android/vendor_hooks.c
View File

@@ -38,6 +38,7 @@
#include <trace/hooks/iommu.h>
#include <trace/hooks/thermal.h>
#include <trace/hooks/ufshcd.h>
#include <trace/hooks/cgroup.h>
/*
* Export tracepoints that act as a bare tracehook (ie: have no trace event
@@ -172,3 +173,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_do_wake_up_sync);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_wake_flags);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_uclamp_eff_value);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpufreq_transition);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cgroup_set_task);

17
include/trace/hooks/cgroup.h Normal file
View File

@@ -0,0 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM cgroup
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_CGROUP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_CGROUP_H
#include <linux/tracepoint.h>
#include <trace/hooks/vendor_hooks.h>
struct task_struct;
DECLARE_HOOK(android_vh_cgroup_set_task,
TP_PROTO(int ret, struct task_struct *task),
TP_ARGS(ret, task));
#endif
#include <trace/define_trace.h>

2
kernel/cgroup/cgroup-v1.c
View File

@@ -17,6 +17,7 @@
#include <linux/fs_parser.h>
#include <trace/events/cgroup.h>
#include <trace/hooks/cgroup.h>
/*
* pidlists linger the following amount before being destroyed. The goal
@@ -518,6 +519,7 @@ static ssize_t __cgroup1_procs_write(struct kernfs_open_file *of,
goto out_finish;
ret = cgroup_attach_task(cgrp, task, threadgroup);
trace_android_vh_cgroup_set_task(ret, task);
out_finish:
cgroup_procs_write_finish(task, locked);