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torture: Reduce #ifdefs for preempt_schedule()

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This commit adds a torture_preempt_schedule() that is nothingness
in !PREEMPT builds and is preempt_schedule() otherwise.  Then
torture_preempt_schedule() is used to eliminate several ugly #ifdefs,
both in rcutorture and in locktorture.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney
2017-10-16 11:05:03 -07:00
parent cf8d8b0051
commit cc1321c96f
3 changed files with 13 additions and 21 deletions
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4
kernel/rcu/rcutorture.c
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@@ -315,11 +315,9 @@ static void rcu_read_delay(struct torture_random_state *rrsp)
}
if (!(torture_random(rrsp) % (nrealreaders * 2 * shortdelay_us)))
udelay(shortdelay_us);
#ifdef CONFIG_PREEMPT
if (!preempt_count() &&
!(torture_random(rrsp) % (nrealreaders * 20000)))
preempt_schedule(); /* No QS if preempt_disable() in effect */
#endif
torture_preempt_schedule(); /* QS only if preemptible. */
}
static void rcu_torture_read_unlock(int idx) __releases(RCU)