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ANDROID: vendor_hooks: Supplement the missing hook call point.

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As a supplement to commit 6c1c1552e6
("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>
This commit is contained in:
Liujie Xie
2023-07-12 15:40:52 +08:00
committed by Todd Kjos
parent 214e6f268b
commit 22e008d6d5
1 changed files with 2 additions and 0 deletions
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2
kernel/locking/rwsem.c
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@@ -1078,6 +1078,8 @@ queue:
raw_spin_unlock_irq(&sem->wait_lock); raw_spin_unlock_irq(&sem->wait_lock);
rwsem_set_reader_owned(sem); rwsem_set_reader_owned(sem);
lockevent_inc(rwsem_rlock_fast); lockevent_inc(rwsem_rlock_fast);
trace_android_vh_record_rwsem_lock_starttime(
current, jiffies);
return sem; return sem;
} }
adjustment += RWSEM_FLAG_WAITERS; adjustment += RWSEM_FLAG_WAITERS;