diff options
Diffstat (limited to 'debian/patches-rt/rcu-enable-rcu_normal_after_boot-by-default-for-RT.patch')
| -rw-r--r-- | debian/patches-rt/rcu-enable-rcu_normal_after_boot-by-default-for-RT.patch | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/debian/patches-rt/rcu-enable-rcu_normal_after_boot-by-default-for-RT.patch b/debian/patches-rt/rcu-enable-rcu_normal_after_boot-by-default-for-RT.patch index 8d113c775..c47fd3b6a 100644 --- a/debian/patches-rt/rcu-enable-rcu_normal_after_boot-by-default-for-RT.patch +++ b/debian/patches-rt/rcu-enable-rcu_normal_after_boot-by-default-for-RT.patch @@ -1,14 +1,14 @@ From: Julia Cartwright <julia@ni.com> Date: Wed, 12 Oct 2016 11:21:14 -0500 Subject: [PATCH] rcu: enable rcu_normal_after_boot by default for RT -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.17-rt9.tar.xz +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.4/older/patches-5.4.3-rt1.tar.xz The forcing of an expedited grace period is an expensive and very RT-application unfriendly operation, as it forcibly preempts all running tasks on CPUs which are preventing the gp from expiring. By default, as a policy decision, disable the expediting of grace -periods (after boot) on configurations which enable PREEMPT_RT_FULL. +periods (after boot) on configurations which enable PREEMPT_RT. Suggested-by: Luiz Capitulino <lcapitulino@redhat.com> Acked-by: Paul E. McKenney <paulmck@linux.ibm.com> @@ -25,8 +25,8 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> extern int rcu_normal; /* from sysctl */ module_param(rcu_normal, int, 0); -static int rcu_normal_after_boot; -+static int rcu_normal_after_boot = IS_ENABLED(CONFIG_PREEMPT_RT_FULL); -+#ifndef CONFIG_PREEMPT_RT_FULL ++static int rcu_normal_after_boot = IS_ENABLED(CONFIG_PREEMPT_RT); ++#ifndef CONFIG_PREEMPT_RT module_param(rcu_normal_after_boot, int, 0); +#endif #endif /* #ifndef CONFIG_TINY_RCU */ |