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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-01-28 15:29:21 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-02-23 09:01:05 -0800
commit3808dc9fab05913060626d7f0edd0f195cb9dcab (patch)
tree5db578f420dc657197fd34b3a9a2c20bf79e0de3 /include/linux/torture.h
parentf67a33561e6e5463b548219df98130da95f2e4a7 (diff)
downloadop-kernel-dev-3808dc9fab05913060626d7f0edd0f195cb9dcab.zip
op-kernel-dev-3808dc9fab05913060626d7f0edd0f195cb9dcab.tar.gz
rcutorture: Abstract torture_shuffle()
The torture_shuffle() function forces each CPU in turn to go idle periodically in order to check for problems interacting with per-CPU variables and with dyntick-idle mode. Because this sort of debugging is not specific to RCU, this commit abstracts that functionality. This in turn requires abstracting some additional infrastructure. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'include/linux/torture.h')
-rw-r--r--include/linux/torture.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/torture.h b/include/linux/torture.h
index 8474d77..544a2c3 100644
--- a/include/linux/torture.h
+++ b/include/linux/torture.h
@@ -69,6 +69,11 @@ struct torture_random_state {
#define DEFINE_TORTURE_RANDOM(name) struct torture_random_state name = { 0, 0 }
unsigned long torture_random(struct torture_random_state *trsp);
+/* Task shuffler, which causes CPUs to occasionally go idle. */
+void torture_shuffle_task_register(struct task_struct *tp);
+int torture_shuffle_init(long shuffint);
+void torture_shuffle_cleanup(void);
+
/* Shutdown task absorption, for when the tasks cannot safely be killed. */
void torture_shutdown_absorb(const char *title);
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