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authorPaul E. McKenney <paul.mckenney@linaro.org>2011-04-03 21:33:51 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-05-05 23:16:56 -0700
commit4a29865689dbb87a02e3b0fff4a4ae5041273173 (patch)
tree72c9f1641a9fb05e3ae4d8cc068f62f9c566bae9 /include/linux
parentd71df90eadfc35aa549ff9a850842673febca71f (diff)
rcu: make rcutorture version numbers available through debugfs
It is not possible to accurately correlate rcutorture output with that of debugfs. This patch therefore adds a debugfs file that prints out the rcutorture version number, permitting easy correlation. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/rcupdate.h13
-rw-r--r--include/linux/rcutree.h3
2 files changed, 15 insertions, 1 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index ff422d2b7f90..9e169c2ba91f 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -47,6 +47,18 @@
extern int rcutorture_runnable; /* for sysctl */
#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
+extern void rcutorture_record_test_transition(void);
+extern void rcutorture_record_progress(unsigned long vernum);
+#else
+static inline void rcutorture_record_test_transition(void)
+{
+}
+static inline void rcutorture_record_progress(unsigned long vernum)
+{
+}
+#endif
+
#define UINT_CMP_GE(a, b) (UINT_MAX / 2 >= (a) - (b))
#define UINT_CMP_LT(a, b) (UINT_MAX / 2 < (a) - (b))
#define ULONG_CMP_GE(a, b) (ULONG_MAX / 2 >= (a) - (b))
@@ -68,7 +80,6 @@ extern void call_rcu_sched(struct rcu_head *head,
extern void synchronize_sched(void);
extern void rcu_barrier_bh(void);
extern void rcu_barrier_sched(void);
-extern int sched_expedited_torture_stats(char *page);
static inline void __rcu_read_lock_bh(void)
{
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 3a933482734a..284dad10c55b 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -58,9 +58,12 @@ static inline void synchronize_rcu_bh_expedited(void)
extern void rcu_barrier(void);
+extern unsigned long rcutorture_testseq;
+extern unsigned long rcutorture_vernum;
extern long rcu_batches_completed(void);
extern long rcu_batches_completed_bh(void);
extern long rcu_batches_completed_sched(void);
+
extern void rcu_force_quiescent_state(void);
extern void rcu_bh_force_quiescent_state(void);
extern void rcu_sched_force_quiescent_state(void);