[PATCH] Add Sparse annotations to SRCU wrapper functions in rcutorture

The SRCU wrapper functions srcu_torture_read_lock and
srcu_torture_read_unlock in rcutorture intentionally change the SRCU
context; annotate them accordingly, to avoid a warning.

Signed-off-by: Josh Triplett <[e-mail]>
Acked-by: Paul E. McKenney <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

kernel/rcutorture.c

···
 	cleanup_srcu_struct(&srcu_ctl);
 }
 
-static int srcu_torture_read_lock(void)
+static int srcu_torture_read_lock(void) __acquires(&srcu_ctl)
 {
 	return srcu_read_lock(&srcu_ctl);
 }
···
 		schedule_timeout_interruptible(longdelay);
 }
 
-static void srcu_torture_read_unlock(int idx)
+static void srcu_torture_read_unlock(int idx) __releases(&srcu_ctl)
 {
 	srcu_read_unlock(&srcu_ctl, idx);
 }