diff mbox series

[v2,2/2] rcu: Make rcu update module parameters world-readable

Message ID 20210810084816.155203-3-juri.lelli@redhat.com
State New
Headers show
Series rcu: Make rcu_normal_after_boot writable again | expand

Commit Message

Juri Lelli Aug. 10, 2021, 8:48 a.m. UTC 
rcu update module parameters currently don't appear in sysfs and this is
a serviceability issue as it might be needed to access their default
values at runtime.

Fix this issue by changing rcu update module parameters permissions to
world-readable.

Suggested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
---
 kernel/rcu/update.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index bd551134e2f4..94282dc12bab 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -54,11 +54,11 @@ 
 #define MODULE_PARAM_PREFIX "rcupdate."
 
 #ifndef CONFIG_TINY_RCU
-module_param(rcu_expedited, int, 0);
-module_param(rcu_normal, int, 0);
+module_param(rcu_expedited, int, 0444);
+module_param(rcu_normal, int, 0444);
 static int rcu_normal_after_boot = IS_ENABLED(CONFIG_PREEMPT_RT);
 #if !defined(CONFIG_PREEMPT_RT) || defined(CONFIG_NO_HZ_FULL)
-module_param(rcu_normal_after_boot, int, 0);
+module_param(rcu_normal_after_boot, int, 0444);
 #endif
 #endif /* #ifndef CONFIG_TINY_RCU */