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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-05-22 13:31:03 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-07-24 16:04:08 -0700
commit115a1a5285664f1931c30457081b4ae1e648f1f9 (patch)
tree42cb4036563415747705c102b62fa66fadb87493 /include/linux
parent520eccdfe187591a51ea9ab4c1a024ae4d0f68d9 (diff)
rcutorture: Move SRCU status printing to SRCU implementations
This commit gets rid of some ugly #ifdefs in rcutorture.c by moving the SRCU status printing to the SRCU implementations. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/srcutiny.h13
-rw-r--r--include/linux/srcutree.h1
2 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/srcutiny.h b/include/linux/srcutiny.h
index cfbfc540cafc..261471f407a5 100644
--- a/include/linux/srcutiny.h
+++ b/include/linux/srcutiny.h
@@ -87,4 +87,17 @@ static inline void srcu_barrier(struct srcu_struct *sp)
synchronize_srcu(sp);
}
+/* Defined here to avoid size increase for non-torture kernels. */
+static inline void srcu_torture_stats_print(struct srcu_struct *sp,
+ char *tt, char *tf)
+{
+ int idx;
+
+ idx = READ_ONCE(sp->srcu_idx) & 0x1;
+ pr_alert("%s%s Tiny SRCU per-CPU(idx=%d): (%hd,%hd)\n",
+ tt, tf, idx,
+ READ_ONCE(sp->srcu_lock_nesting[!idx]),
+ READ_ONCE(sp->srcu_lock_nesting[idx]));
+}
+
#endif
diff --git a/include/linux/srcutree.h b/include/linux/srcutree.h
index 42973f787e7e..7886356bdc84 100644
--- a/include/linux/srcutree.h
+++ b/include/linux/srcutree.h
@@ -141,5 +141,6 @@ void process_srcu(struct work_struct *work);
void synchronize_srcu_expedited(struct srcu_struct *sp);
void srcu_barrier(struct srcu_struct *sp);
+void srcu_torture_stats_print(struct srcu_struct *sp, char *tt, char *tf);
#endif