From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/kernel/locking/rwsem.c | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/kernel/kernel/locking/rwsem.c b/kernel/kernel/locking/rwsem.c
index b55d945..d368d1a 100644
--- a/kernel/kernel/locking/rwsem.c
+++ b/kernel/kernel/locking/rwsem.c
@@ -28,7 +28,6 @@
#include <linux/rwsem.h>
#include <linux/atomic.h>
-#ifndef CONFIG_PREEMPT_RT
#include "lock_events.h"
#include <trace/hooks/rwsem.h>
#include <trace/hooks/dtask.h>
@@ -1525,7 +1524,6 @@
if (tmp & RWSEM_FLAG_WAITERS)
rwsem_downgrade_wake(sem);
}
-#endif
/*
* lock for reading
@@ -1639,6 +1637,7 @@
void up_write(struct rw_semaphore *sem)
{
rwsem_release(&sem->dep_map, _RET_IP_);
+ trace_android_vh_rwsem_write_finished(sem);
__up_write(sem);
}
EXPORT_SYMBOL(up_write);
@@ -1649,6 +1648,7 @@
void downgrade_write(struct rw_semaphore *sem)
{
lock_downgrade(&sem->dep_map, _RET_IP_);
+ trace_android_vh_rwsem_write_finished(sem);
__downgrade_write(sem);
}
EXPORT_SYMBOL(downgrade_write);
@@ -1689,9 +1689,7 @@
{
might_sleep();
__down_read(sem);
-#ifndef CONFIG_PREEMPT_RT
__rwsem_set_reader_owned(sem, NULL);
-#endif
}
EXPORT_SYMBOL(down_read_non_owner);
@@ -1720,9 +1718,7 @@
void up_read_non_owner(struct rw_semaphore *sem)
{
-#ifndef CONFIG_PREEMPT_RT
DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem), sem);
-#endif
__up_read(sem);
}
EXPORT_SYMBOL(up_read_non_owner);
--
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