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ANDROID: vendor_hook: rename the the name of hooks

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Renamed trace_android_vh_record_percpu_rwsem_lock_starttime to
trace_android_vh_record_pcpu_rwsem_starttime.

Because the orignal name is too long, which results to the
compile-err of .ko that uses the symbol:

ERROR: modpost:
too long symbol "__tracepoint_android_vh_record_percpu_rwsem_lock_starttime"

There is not any users of the the orignal hooks so that it is safe to
rename it.

Bug: 241191475
Signed-off-by: Peifeng Li <lipeifeng@oppo.com>
Change-Id: Ie246a933414db5e9e28a65a4c280fae3a1cbefe3
This commit is contained in:
Peifeng Li
2022-09-22 11:36:30 +08:00
committed by Matthias Männich
parent 2c625a20c0
commit 5c5b7a4da6
4 changed files with 13 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/android/vendor_hooks.c
View File

@@ -267,7 +267,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_revert_creds);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_record_mutex_lock_starttime);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_record_rtmutex_lock_starttime);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_record_rwsem_lock_starttime);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_record_percpu_rwsem_lock_starttime);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_record_pcpu_rwsem_starttime);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_memory_x);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_memory_nx);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_memory_ro);

8
include/linux/percpu-rwsem.h
View File

@@ -9,7 +9,7 @@
#include <linux/rcu_sync.h>
#include <linux/lockdep.h>
void _trace_android_vh_record_percpu_rwsem_lock_starttime(
void _trace_android_vh_record_pcpu_rwsem_starttime(
struct task_struct *tsk, unsigned long settime);
struct percpu_rw_semaphore {
@@ -76,7 +76,7 @@ static inline void percpu_down_read(struct percpu_rw_semaphore *sem)
* bleeding the critical section out.
*/
preempt_enable();
_trace_android_vh_record_percpu_rwsem_lock_starttime(current, jiffies);
_trace_android_vh_record_pcpu_rwsem_starttime(current, jiffies);
}
static inline bool percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
@@ -98,7 +98,7 @@ static inline bool percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
*/
if (ret) {
_trace_android_vh_record_percpu_rwsem_lock_starttime(current, jiffies);
_trace_android_vh_record_pcpu_rwsem_starttime(current, jiffies);
rwsem_acquire_read(&sem->dep_map, 0, 1, _RET_IP_);
}
@@ -107,7 +107,7 @@ static inline bool percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
static inline void percpu_up_read(struct percpu_rw_semaphore *sem)
{
_trace_android_vh_record_percpu_rwsem_lock_starttime(current, 0);
_trace_android_vh_record_pcpu_rwsem_starttime(current, 0);
rwsem_release(&sem->dep_map, _RET_IP_);
preempt_disable();

2
include/trace/hooks/dtask.h
View File

@@ -77,7 +77,7 @@ DECLARE_HOOK(android_vh_record_rtmutex_lock_starttime,
DECLARE_HOOK(android_vh_record_rwsem_lock_starttime,
TP_PROTO(struct task_struct *tsk, unsigned long settime_jiffies),
TP_ARGS(tsk, settime_jiffies));
DECLARE_HOOK(android_vh_record_percpu_rwsem_lock_starttime,
DECLARE_HOOK(android_vh_record_pcpu_rwsem_starttime,
TP_PROTO(struct task_struct *tsk, unsigned long settime_jiffies),
TP_ARGS(tsk, settime_jiffies));

14
kernel/locking/percpu-rwsem.c
View File

@@ -13,17 +13,17 @@
#include <trace/hooks/dtask.h>
/*
* trace_android_vh_record_percpu_rwsem_lock_starttime is called in
* trace_android_vh_record_pcpu_rwsem_starttime is called in
* include/linux/percpu-rwsem.h by including include/hooks/dtask.h, which
* will result to build-err. So we create
* func:_trace_android_vh_record_percpu_rwsem_lock_starttime for percpu-rwsem.h to call.
* func:_trace_android_vh_record_pcpu_rwsem_starttime for percpu-rwsem.h to call.
*/
void _trace_android_vh_record_percpu_rwsem_lock_starttime(struct task_struct *tsk,
void _trace_android_vh_record_pcpu_rwsem_starttime(struct task_struct *tsk,
unsigned long settime)
{
trace_android_vh_record_percpu_rwsem_lock_starttime(tsk, settime);
trace_android_vh_record_pcpu_rwsem_starttime(tsk, settime);
}
EXPORT_SYMBOL_GPL(_trace_android_vh_record_percpu_rwsem_lock_starttime);
EXPORT_SYMBOL_GPL(_trace_android_vh_record_pcpu_rwsem_starttime);
int __percpu_init_rwsem(struct percpu_rw_semaphore *sem,
const char *name, struct lock_class_key *key)
@@ -252,13 +252,13 @@ void percpu_down_write(struct percpu_rw_semaphore *sem)
/* Wait for all active readers to complete. */
rcuwait_wait_event(&sem->writer, readers_active_check(sem), TASK_UNINTERRUPTIBLE);
trace_android_vh_record_percpu_rwsem_lock_starttime(current, jiffies);
trace_android_vh_record_pcpu_rwsem_starttime(current, jiffies);
}
EXPORT_SYMBOL_GPL(percpu_down_write);
void percpu_up_write(struct percpu_rw_semaphore *sem)
{
trace_android_vh_record_percpu_rwsem_lock_starttime(current, 0);
trace_android_vh_record_pcpu_rwsem_starttime(current, 0);
rwsem_release(&sem->dep_map, _RET_IP_);
/*