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    Subject[PATCH rcu 12/14] rcu: Make rcu update module parameters world-readable
    Date
    From: Juri Lelli <juri.lelli@redhat.com>

    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>
    Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
    ---
    kernel/rcu/update.c | 6 +++---
    1 file changed, 3 insertions(+), 3 deletions(-)

    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 */

    --
    2.31.1.189.g2e36527f23
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