srcu: Improve srcu_read_lock_lite() kernel-doc comment

Where RCU is watching is where it is OK to invoke rcu_read_lock().

Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>

diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index 4ba96e2cfa405a5bd67eb5d38b58873e0b31a01e..bab1dae3f69e636c322a21e47fbd0bee7f6f18a3 100644 (file)
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -270,7 +270,8 @@ static inline int srcu_read_lock(struct srcu_struct *ssp) __acquires(ssp)
  * synchronize_rcu_expedited(), IPIs and all.
  *
  * Note that srcu_read_lock_lite() can be invoked only from those contexts
- * where RCU is watching.  Otherwise, lockdep will complain.
+ * where RCU is watching, that is, from contexts where it would be legal
+ * to invoke rcu_read_lock().  Otherwise, lockdep will complain.
  */
 static inline int srcu_read_lock_lite(struct srcu_struct *ssp) __acquires(ssp)
 {