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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/include/linux/rcutree.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/include/linux/rcutree.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/rcutree.h | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/ANDROID_3.4.5/include/linux/rcutree.h b/ANDROID_3.4.5/include/linux/rcutree.h deleted file mode 100644 index e8ee5dd0..00000000 --- a/ANDROID_3.4.5/include/linux/rcutree.h +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Read-Copy Update mechanism for mutual exclusion (tree-based version) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * Copyright IBM Corporation, 2008 - * - * Author: Dipankar Sarma <dipankar@in.ibm.com> - * Paul E. McKenney <paulmck@linux.vnet.ibm.com> Hierarchical algorithm - * - * Based on the original work by Paul McKenney <paulmck@us.ibm.com> - * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen. - * - * For detailed explanation of Read-Copy Update mechanism see - - * Documentation/RCU - */ - -#ifndef __LINUX_RCUTREE_H -#define __LINUX_RCUTREE_H - -extern void rcu_init(void); -extern void rcu_note_context_switch(int cpu); -extern int rcu_needs_cpu(int cpu); -extern void rcu_cpu_stall_reset(void); - -/* - * Note a virtualization-based context switch. This is simply a - * wrapper around rcu_note_context_switch(), which allows TINY_RCU - * to save a few bytes. - */ -static inline void rcu_virt_note_context_switch(int cpu) -{ - rcu_note_context_switch(cpu); -} - -#ifdef CONFIG_TREE_PREEMPT_RCU - -extern void exit_rcu(void); - -#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */ - -static inline void exit_rcu(void) -{ -} - -#endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */ - -extern void synchronize_rcu_bh(void); -extern void synchronize_sched_expedited(void); -extern void synchronize_rcu_expedited(void); - -void kfree_call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu)); - -/** - * synchronize_rcu_bh_expedited - Brute-force RCU-bh grace period - * - * Wait for an RCU-bh grace period to elapse, but use a "big hammer" - * approach to force the grace period to end quickly. This consumes - * significant time on all CPUs and is unfriendly to real-time workloads, - * so is thus not recommended for any sort of common-case code. In fact, - * if you are using synchronize_rcu_bh_expedited() in a loop, please - * restructure your code to batch your updates, and then use a single - * synchronize_rcu_bh() instead. - * - * Note that it is illegal to call this function while holding any lock - * that is acquired by a CPU-hotplug notifier. And yes, it is also illegal - * to call this function from a CPU-hotplug notifier. Failing to observe - * these restriction will result in deadlock. - */ -static inline void synchronize_rcu_bh_expedited(void) -{ - synchronize_sched_expedited(); -} - -extern void rcu_barrier(void); -extern void rcu_barrier_bh(void); -extern void rcu_barrier_sched(void); - -extern unsigned long rcutorture_testseq; -extern unsigned long rcutorture_vernum; -extern long rcu_batches_completed(void); -extern long rcu_batches_completed_bh(void); -extern long rcu_batches_completed_sched(void); - -extern void rcu_force_quiescent_state(void); -extern void rcu_bh_force_quiescent_state(void); -extern void rcu_sched_force_quiescent_state(void); - -/* A context switch is a grace period for RCU-sched and RCU-bh. */ -static inline int rcu_blocking_is_gp(void) -{ - might_sleep(); /* Check for RCU read-side critical section. */ - return num_online_cpus() == 1; -} - -extern void rcu_scheduler_starting(void); -extern int rcu_scheduler_active __read_mostly; - -#endif /* __LINUX_RCUTREE_H */ |