From 22e008d6d5562feaab2043b7f3f7c6b7d5f81938 Mon Sep 17 00:00:00 2001
From: Liujie Xie <xieliujie@oppo.com>
Date: Wed, 12 Jul 2023 15:40:52 +0800
Subject: [PATCH] ANDROID: vendor_hooks: Supplement the missing hook call
 point.

As a supplement to commit 6c1c1552e610
("ANDROID: vendor_hook: add hooks to protect locking-tsk in cpu scheduler").
In rwsem read, we missed a lock-holding scenario, add it now.

Bug: 290868674

Change-Id: I718dd942b24b330a79283fc241dcbf47cc34c0c5
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
---
 kernel/locking/rwsem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 1988ac0dc3b3..aa85792d352e 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -1078,6 +1078,8 @@ queue:
 			raw_spin_unlock_irq(&sem->wait_lock);
 			rwsem_set_reader_owned(sem);
 			lockevent_inc(rwsem_rlock_fast);
+			trace_android_vh_record_rwsem_lock_starttime(
+							current, jiffies);
 			return sem;
 		}
 		adjustment += RWSEM_FLAG_WAITERS;