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author | Josh Triplett <josht@us.ibm.com> | 2006-10-04 09:17:16 (GMT) |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 14:55:31 (GMT) |
commit | 4b6c2cca6eef9cc4a15350bf1c61839e12e08b84 (patch) | |
tree | 47c59830f653cb20716bd24fa5272963cceaa68f /kernel | |
parent | 11a147013e39ff4cb031395cb78a9d307c4799cd (diff) | |
download | linux-4b6c2cca6eef9cc4a15350bf1c61839e12e08b84.tar.xz |
[PATCH] rcu: add sched torture type to rcutorture
Implement torture testing for the "sched" variant of RCU, which uses
preempt_disable, preempt_enable, and synchronize_sched.
Signed-off-by: Josh Triplett <josh@freedesktop.org>
Acked-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/rcutorture.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index 0f0ff15..e2bda18 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -464,9 +464,47 @@ static struct rcu_torture_ops srcu_ops = { .name = "srcu" }; +/* + * Definitions for sched torture testing. + */ + +static int sched_torture_read_lock(void) +{ + preempt_disable(); + return 0; +} + +static void sched_torture_read_unlock(int idx) +{ + preempt_enable(); +} + +static int sched_torture_completed(void) +{ + return 0; +} + +static void sched_torture_synchronize(void) +{ + synchronize_sched(); +} + +static struct rcu_torture_ops sched_ops = { + .init = rcu_sync_torture_init, + .cleanup = NULL, + .readlock = sched_torture_read_lock, + .readdelay = rcu_read_delay, /* just reuse rcu's version. */ + .readunlock = sched_torture_read_unlock, + .completed = sched_torture_completed, + .deferredfree = rcu_sync_torture_deferred_free, + .sync = sched_torture_synchronize, + .stats = NULL, + .name = "sched" +}; + static struct rcu_torture_ops *torture_ops[] = { &rcu_ops, &rcu_sync_ops, &rcu_bh_ops, &rcu_bh_sync_ops, &srcu_ops, - NULL }; + &sched_ops, NULL }; /* * RCU torture writer kthread. Repeatedly substitutes a new structure |