From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/kernel/locking/percpu-rwsem.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/kernel/kernel/locking/percpu-rwsem.c b/kernel/kernel/locking/percpu-rwsem.c
index c8a474a..b00db54 100644
--- a/kernel/kernel/locking/percpu-rwsem.c
+++ b/kernel/kernel/locking/percpu-rwsem.c
@@ -166,6 +166,7 @@
if (wait) {
wq_entry.flags |= WQ_FLAG_EXCLUSIVE | reader * WQ_FLAG_CUSTOM;
__add_wait_queue_entry_tail(&sem->waiters, &wq_entry);
+ trace_android_vh_percpu_rwsem_wq_add(sem, reader);
}
spin_unlock_irq(&sem->waiters.lock);
@@ -258,7 +259,6 @@
void percpu_up_write(struct percpu_rw_semaphore *sem)
{
- trace_android_vh_record_pcpu_rwsem_starttime(current, 0);
rwsem_release(&sem->dep_map, _RET_IP_);
/*
@@ -284,6 +284,7 @@
* exclusive write lock because its counting.
*/
rcu_sync_exit(&sem->rss);
+ trace_android_vh_record_pcpu_rwsem_starttime(current, 0);
}
EXPORT_SYMBOL_GPL(percpu_up_write);
--
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