Commit-ID: 347f42382184f7448fa96bf9e9fa4eb6f6d1099e
Gitweb: http://git.kernel.org/tip/347f42382184f7448fa96bf9e9fa4eb6f6d1099e
Author: Li Zhong <zhong@xxxxxxxxxxxxxxxxxx>
AuthorDate: Mon, 7 Jan 2013 09:36:48 -0800
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Sat, 26 Jan 2013 16:34:48 -0800
rcu: Remove unused code originally used for context tracking
As context tracking subsystem evolved, it stopped using ignore_user_qs
and in_user defined in the rcu_dynticks structure. This commit therefore
removes them.
Signed-off-by: Li Zhong <zhong@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
---
kernel/rcutree.c | 3 ---
kernel/rcutree.h | 4 ----
2 files changed, 7 deletions(-)
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index d78ba60..8a13c8e 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -2719,9 +2719,6 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
-#ifdef CONFIG_RCU_USER_QS
- WARN_ON_ONCE(rdp->dynticks->in_user);
-#endif
rdp->cpu = cpu;
rdp->rsp = rsp;
rcu_boot_init_nocb_percpu_data(rdp);
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 4b69291..6f21f2e 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -102,10 +102,6 @@ struct rcu_dynticks {
/* idle-period nonlazy_posted snapshot. */
int tick_nohz_enabled_snap; /* Previously seen value from sysfs. */
#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
-#ifdef CONFIG_RCU_USER_QS
- bool ignore_user_qs; /* Treat userspace as extended QS or not */
- bool in_user; /* Is the CPU in userland from RCU POV? */
-#endif
};
/* RCU's kthread states for tracing. */
--
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