diff options
Diffstat (limited to 'kernel/rcutiny.c')
| -rw-r--r-- | kernel/rcutiny.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c index a0714a51b6d7..aa344111de3e 100644 --- a/kernel/rcutiny.c +++ b/kernel/rcutiny.c @@ -44,7 +44,6 @@ /* Forward declarations for rcutiny_plugin.h. */ struct rcu_ctrlblk; -static void invoke_rcu_callbacks(void); static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp); static void rcu_process_callbacks(struct softirq_action *unused); static void __call_rcu(struct rcu_head *head, @@ -205,7 +204,7 @@ static int rcu_is_cpu_rrupt_from_idle(void) */ static int rcu_qsctr_help(struct rcu_ctrlblk *rcp) { - reset_cpu_stall_ticks(rcp); + RCU_TRACE(reset_cpu_stall_ticks(rcp)); if (rcp->rcucblist != NULL && rcp->donetail != rcp->curtail) { rcp->donetail = rcp->curtail; @@ -227,7 +226,7 @@ void rcu_sched_qs(int cpu) local_irq_save(flags); if (rcu_qsctr_help(&rcu_sched_ctrlblk) + rcu_qsctr_help(&rcu_bh_ctrlblk)) - invoke_rcu_callbacks(); + raise_softirq(RCU_SOFTIRQ); local_irq_restore(flags); } @@ -240,7 +239,7 @@ void rcu_bh_qs(int cpu) local_irq_save(flags); if (rcu_qsctr_help(&rcu_bh_ctrlblk)) - invoke_rcu_callbacks(); + raise_softirq(RCU_SOFTIRQ); local_irq_restore(flags); } @@ -252,12 +251,11 @@ void rcu_bh_qs(int cpu) */ void rcu_check_callbacks(int cpu, int user) { - check_cpu_stalls(); + RCU_TRACE(check_cpu_stalls()); if (user || rcu_is_cpu_rrupt_from_idle()) rcu_sched_qs(cpu); else if (!in_softirq()) rcu_bh_qs(cpu); - rcu_preempt_check_callbacks(); } /* @@ -278,7 +276,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp) ACCESS_ONCE(rcp->rcucblist), need_resched(), is_idle_task(current), - rcu_is_callbacks_kthread())); + false)); return; } @@ -290,7 +288,6 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp) *rcp->donetail = NULL; if (rcp->curtail == rcp->donetail) rcp->curtail = &rcp->rcucblist; - rcu_preempt_remove_callbacks(rcp); rcp->donetail = &rcp->rcucblist; local_irq_restore(flags); @@ -309,14 +306,13 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp) RCU_TRACE(rcu_trace_sub_qlen(rcp, cb_count)); RCU_TRACE(trace_rcu_batch_end(rcp->name, cb_count, 0, need_resched(), is_idle_task(current), - rcu_is_callbacks_kthread())); + false)); } static void rcu_process_callbacks(struct softirq_action *unused) { __rcu_process_callbacks(&rcu_sched_ctrlblk); __rcu_process_callbacks(&rcu_bh_ctrlblk); - rcu_preempt_process_callbacks(); } /* @@ -382,3 +378,8 @@ void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu)) __call_rcu(head, func, &rcu_bh_ctrlblk); } EXPORT_SYMBOL_GPL(call_rcu_bh); + +void rcu_init(void) +{ + open_softirq(RCU_SOFTIRQ, rcu_process_callbacks); +} |