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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-07-14 14:38:30 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-08-19 17:18:03 -0700
commitf2e0dd7090eddef427ab9d9f81de122244cded51 (patch)
tree71f6dbc174eb9405c1d4313fafa2b5db369d5939
parentded5e5ed2f3348ba2f9a319c6497e46c22850e97 (diff)
rcu: allow RCU CPU stall warning messages to be controlled in /sys
Set the permissions of the rcu_cpu_stall_suppress to 644 to enable RCU CPU stall warnings to be enabled and disabled at runtime via sysfs. Suggested-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
-rw-r--r--kernel/rcutree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index f3d5906cbc21..5d910beefff2 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -145,7 +145,7 @@ module_param(qlowmark, int, 0);
#ifdef CONFIG_RCU_CPU_STALL_DETECTOR
int rcu_cpu_stall_suppress __read_mostly;
-module_param(rcu_cpu_stall_suppress, int, 0);
+module_param(rcu_cpu_stall_suppress, int, 0644);
#endif /* #ifdef CONFIG_RCU_CPU_STALL_DETECTOR */
static void force_quiescent_state(struct rcu_state *rsp, int relaxed);

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