diff options
Diffstat (limited to 'debian/patches-rt/EXP-rcu-skip_workqueue.patch')
| -rw-r--r-- | debian/patches-rt/EXP-rcu-skip_workqueue.patch | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/debian/patches-rt/EXP-rcu-skip_workqueue.patch b/debian/patches-rt/EXP-rcu-skip_workqueue.patch deleted file mode 100644 index 04b56aaab..000000000 --- a/debian/patches-rt/EXP-rcu-skip_workqueue.patch +++ /dev/null @@ -1,28 +0,0 @@ -From: Paul E. McKenney <paulmck@linux.ibm.com> -Date: Mon, 29 Oct 2018 11:53:01 +0100 -Subject: [PATCH] EXP rcu: skip the workqueue path on RT -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.0/older/patches-5.0.10-rt7.tar.xz - -The function sync_rcu_exp_select_cpus() is only invoked once on boot because -the "force expedite" is not enabled on RT. In that case on RT we have like we -wouldn't have workqueues available so that we don't attempt to schedule them -with disabled preemption. - -Suggested-by: Paul E. McKenney <paulmck@linux.ibm.com> -Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> ---- - kernel/rcu/tree_exp.h | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - ---- a/kernel/rcu/tree_exp.h -+++ b/kernel/rcu/tree_exp.h -@@ -441,7 +441,8 @@ static void sync_rcu_exp_select_cpus(smp - if (!READ_ONCE(rnp->expmask)) - continue; /* Avoid early boot non-existent wq. */ - rnp->rew.rew_func = func; -- if (!READ_ONCE(rcu_par_gp_wq) || -+ if (IS_ENABLED(CONFIG_PREEMPT_RT_FULL) || -+ !READ_ONCE(rcu_par_gp_wq) || - rcu_scheduler_active != RCU_SCHEDULER_RUNNING || - rcu_is_last_leaf_node(rnp)) { - /* No workqueues yet or last leaf, do direct call. */ |