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authorPaul E. McKenney <paul.mckenney@linaro.org>2011-04-04 00:33:51 -0400
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-05-06 02:16:56 -0400
commit4a29865689dbb87a02e3b0fff4a4ae5041273173 (patch)
tree72c9f1641a9fb05e3ae4d8cc068f62f9c566bae9 /include/linux/rcupdate.h
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/rcupdate.h')
-rw-r--r--include/linux/rcupdate.h13
1 files changed, 12 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 @@
47extern int rcutorture_runnable; /* for sysctl */ 47extern int rcutorture_runnable; /* for sysctl */
48#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */ 48#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
49 49
50#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
51extern void rcutorture_record_test_transition(void);
52extern void rcutorture_record_progress(unsigned long vernum);
53#else
54static inline void rcutorture_record_test_transition(void)
55{
56}
57static inline void rcutorture_record_progress(unsigned long vernum)
58{
59}
60#endif
61
50#define UINT_CMP_GE(a, b) (UINT_MAX / 2 >= (a) - (b)) 62#define UINT_CMP_GE(a, b) (UINT_MAX / 2 >= (a) - (b))
51#define UINT_CMP_LT(a, b) (UINT_MAX / 2 < (a) - (b)) 63#define UINT_CMP_LT(a, b) (UINT_MAX / 2 < (a) - (b))
52#define ULONG_CMP_GE(a, b) (ULONG_MAX / 2 >= (a) - (b)) 64#define ULONG_CMP_GE(a, b) (ULONG_MAX / 2 >= (a) - (b))
@@ -68,7 +80,6 @@ extern void call_rcu_sched(struct rcu_head *head,
68extern void synchronize_sched(void); 80extern void synchronize_sched(void);
69extern void rcu_barrier_bh(void); 81extern void rcu_barrier_bh(void);
70extern void rcu_barrier_sched(void); 82extern void rcu_barrier_sched(void);
71extern int sched_expedited_torture_stats(char *page);
72 83
73static inline void __rcu_read_lock_bh(void) 84static inline void __rcu_read_lock_bh(void)
74{ 85{