---

 b/arch/x86/kernel/nmi.c    |    3 +++
 b/include/linux/rcupdate.h |    2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff -puN arch/x86/kernel/nmi.c~dirty-rcu-hack arch/x86/kernel/nmi.c
--- a/arch/x86/kernel/nmi.c~dirty-rcu-hack	2014-06-13 16:00:30.257183228 -0700
+++ b/arch/x86/kernel/nmi.c	2014-06-13 16:00:30.261183407 -0700
@@ -88,10 +88,13 @@ __setup("unknown_nmi_panic", setup_unkno
 
 static u64 nmi_longest_ns = 1 * NSEC_PER_MSEC;
 
+u64 RCU_COND_RESCHED_LIM = 256;
 static int __init nmi_warning_debugfs(void)
 {
 	debugfs_create_u64("nmi_longest_ns", 0644,
 			arch_debugfs_dir, &nmi_longest_ns);
+	debugfs_create_u64("RCU_COND_RESCHED_LIM", 0644,
+			arch_debugfs_dir, &RCU_COND_RESCHED_LIM);
 	return 0;
 }
 fs_initcall(nmi_warning_debugfs);
diff -puN include/linux/rcupdate.h~dirty-rcu-hack include/linux/rcupdate.h
--- a/include/linux/rcupdate.h~dirty-rcu-hack	2014-06-13 16:00:35.578421426 -0700
+++ b/include/linux/rcupdate.h	2014-06-13 16:00:49.863060683 -0700
@@ -303,7 +303,7 @@ bool __rcu_is_watching(void);
  * Hooks for cond_resched() and friends to avoid RCU CPU stall warnings.
  */
 
-#define RCU_COND_RESCHED_LIM 256	/* ms vs. 100s of ms. */
+extern u64 RCU_COND_RESCHED_LIM	/* ms vs. 100s of ms. */
 DECLARE_PER_CPU(int, rcu_cond_resched_count);
 void rcu_resched(void);
 
_