[PATCH tip/core/rcu 29/86] rcu: fix spelling

Paul E. McKenney
2011-05-01T13:32:26Z

The "preemptible" spelling is preferable. May as well fix it.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
kernel/rcutree.c | 10 ++++----
kernel/rcutree.h | 2 +-
kernel/rcutree_plugin.h | 62 +++++++++++++++++++++++-----------------------
3 files changed, 37 insertions(+), 37 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 03f7148..d0346da 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -290,8 +290,8 @@ static int rcu_implicit_offline_qs(struct rcu_data *rdp)
return 1;
}

- /* If preemptable RCU, no point in sending reschedule IPI. */
- if (rdp->preemptable)
+ /* If preemptible RCU, no point in sending reschedule IPI. */
+ if (rdp->preemptible)
return 0;

/* The CPU is online, so send it a reschedule IPI. */
@@ -1982,7 +1982,7 @@ static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp)
* or RCU-bh, force a local reschedule.
*/
rdp->n_rp_qs_pending++;
- if (!rdp->preemptable &&
+ if (!rdp->preemptible &&
ULONG_CMP_LT(ACCESS_ONCE(rsp->jiffies_force_qs) - 1,
jiffies))
set_need_resched();
@@ -2159,7 +2159,7 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
* that this CPU cannot possibly have any RCU callbacks in flight yet.
*/
static void __cpuinit
-rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptable)
+rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
{
unsigned long flags;
unsigned long mask;
@@ -2171,7 +2171,7 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptable)
rdp->passed_quiesc = 0; /* We could be racing with new GP, */
rdp->qs_pending = 1; /* so set up to respond to current GP. */
rdp->beenonline = 1; /* We have now been online. */
- rdp->preemptable = preemptable;
+ rdp->preemptible = preemptible;
rdp->qlen_last_fqs_check = 0;
rdp->n_force_qs_snap = rsp->n_force_qs;
rdp->blimit = blimit;
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 37502a2..a6a9717 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -239,7 +239,7 @@ struct rcu_data {
bool passed_quiesc; /* User-mode/idle loop etc. */
bool qs_pending; /* Core waits for quiesc state. */
bool beenonline; /* CPU online at least once. */
- bool preemptable; /* Preemptable RCU? */
+ bool preemptible; /* Preemptible RCU? */
struct rcu_node *mynode; /* This CPU's leaf of hierarchy */
unsigned long grpmask; /* Mask to apply to leaf qsmask. */

diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 11b27f3..f629479 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -1,7 +1,7 @@
/*
* Read-Copy Update mechanism for mutual exclusion (tree-based version)
* Internal non-public definitions that provide either classic
- * or preemptable semantics.
+ * or preemptible semantics.
*
* 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
@@ -75,7 +75,7 @@ static int rcu_preempted_readers_exp(struct rcu_node *rnp);
*/
static void __init rcu_bootup_announce(void)
{
- printk(KERN_INFO "Preemptable hierarchical RCU implementation.\n");
+ printk(KERN_INFO "Preemptible hierarchical RCU implementation.\n");
rcu_bootup_announce_oddness();
}

@@ -108,7 +108,7 @@ void rcu_force_quiescent_state(void)
EXPORT_SYMBOL_GPL(rcu_force_quiescent_state);

/*
- * Record a preemptable-RCU quiescent state for the specified CPU. Note
+ * Record a preemptible-RCU quiescent state for the specified CPU. Note
* that this just means that the task currently running on the CPU is
* not in a quiescent state. There might be any number of tasks blocked
* while in an RCU read-side critical section.
@@ -207,7 +207,7 @@ static void rcu_preempt_note_context_switch(int cpu)
}

/*
- * Tree-preemptable RCU implementation for rcu_read_lock().
+ * Tree-preemptible RCU implementation for rcu_read_lock().
* Just increment ->rcu_read_lock_nesting, shared state will be updated
* if we block.
*/
@@ -376,7 +376,7 @@ static void rcu_read_unlock_special(struct task_struct *t)
}

/*
- * Tree-preemptable RCU implementation for rcu_read_unlock().
+ * Tree-preemptible RCU implementation for rcu_read_unlock().
* Decrement ->rcu_read_lock_nesting. If the result is zero (outermost
* rcu_read_unlock()) and ->rcu_read_unlock_special is non-zero, then
* invoke rcu_read_unlock_special() to clean up after a context switch
@@ -565,7 +565,7 @@ static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
}

/*
- * Do CPU-offline processing for preemptable RCU.
+ * Do CPU-offline processing for preemptible RCU.
*/
static void rcu_preempt_offline_cpu(int cpu)
{
@@ -594,7 +594,7 @@ static void rcu_preempt_check_callbacks(int cpu)
}

/*
- * Process callbacks for preemptable RCU.
+ * Process callbacks for preemptible RCU.
*/
static void rcu_preempt_process_callbacks(void)
{
@@ -603,7 +603,7 @@ static void rcu_preempt_process_callbacks(void)
}

/*
- * Queue a preemptable-RCU callback for invocation after a grace period.
+ * Queue a preemptible-RCU callback for invocation after a grace period.
*/
void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
{
@@ -795,7 +795,7 @@ mb_ret:
EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);

/*
- * Check to see if there is any immediate preemptable-RCU-related work
+ * Check to see if there is any immediate preemptible-RCU-related work
* to be done.
*/
static int rcu_preempt_pending(int cpu)
@@ -805,7 +805,7 @@ static int rcu_preempt_pending(int cpu)
}

/*
- * Does preemptable RCU need the CPU to stay out of dynticks mode?
+ * Does preemptible RCU need the CPU to stay out of dynticks mode?
*/
static int rcu_preempt_needs_cpu(int cpu)
{
@@ -822,7 +822,7 @@ void rcu_barrier(void)
EXPORT_SYMBOL_GPL(rcu_barrier);

/*
- * Initialize preemptable RCU's per-CPU data.
+ * Initialize preemptible RCU's per-CPU data.
*/
static void __cpuinit rcu_preempt_init_percpu_data(int cpu)
{
@@ -830,7 +830,7 @@ static void __cpuinit rcu_preempt_init_percpu_data(int cpu)
}

/*
- * Move preemptable RCU's callbacks from dying CPU to other online CPU.
+ * Move preemptible RCU's callbacks from dying CPU to other online CPU.
*/
static void rcu_preempt_send_cbs_to_online(void)
{
@@ -838,7 +838,7 @@ static void rcu_preempt_send_cbs_to_online(void)
}

/*
- * Initialize preemptable RCU's state structures.
+ * Initialize preemptible RCU's state structures.
*/
static void __init __rcu_init_preempt(void)
{
@@ -846,7 +846,7 @@ static void __init __rcu_init_preempt(void)
}

/*
- * Check for a task exiting while in a preemptable-RCU read-side
+ * Check for a task exiting while in a preemptible-RCU read-side
* critical section, clean up if so. No need to issue warnings,
* as debug_check_no_locks_held() already does this if lockdep
* is enabled.
@@ -894,7 +894,7 @@ void rcu_force_quiescent_state(void)
EXPORT_SYMBOL_GPL(rcu_force_quiescent_state);

/*
- * Because preemptable RCU does not exist, we never have to check for
+ * Because preemptible RCU does not exist, we never have to check for
* CPUs being in quiescent states.
*/
static void rcu_preempt_note_context_switch(int cpu)
@@ -902,7 +902,7 @@ static void rcu_preempt_note_context_switch(int cpu)
}

/*
- * Because preemptable RCU does not exist, there are never any preempted
+ * Because preemptible RCU does not exist, there are never any preempted
* RCU readers.
*/
static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp)
@@ -921,7 +921,7 @@ static void rcu_report_unblock_qs_rnp(struct rcu_node *rnp, unsigned long flags)
#endif /* #ifdef CONFIG_HOTPLUG_CPU */

/*
- * Because preemptable RCU does not exist, we never have to check for
+ * Because preemptible RCU does not exist, we never have to check for
* tasks blocked within RCU read-side critical sections.
*/
static void rcu_print_detail_task_stall(struct rcu_state *rsp)
@@ -929,7 +929,7 @@ static void rcu_print_detail_task_stall(struct rcu_state *rsp)
}

/*
- * Because preemptable RCU does not exist, we never have to check for
+ * Because preemptible RCU does not exist, we never have to check for
* tasks blocked within RCU read-side critical sections.
*/
static void rcu_print_task_stall(struct rcu_node *rnp)
@@ -945,7 +945,7 @@ static void rcu_preempt_stall_reset(void)
}

/*
- * Because there is no preemptable RCU, there can be no readers blocked,
+ * Because there is no preemptible RCU, there can be no readers blocked,
* so there is no need to check for blocked tasks. So check only for
* bogus qsmask values.
*/
@@ -957,7 +957,7 @@ static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp)
#ifdef CONFIG_HOTPLUG_CPU

/*
- * Because preemptable RCU does not exist, it never needs to migrate
+ * Because preemptible RCU does not exist, it never needs to migrate
* tasks that were blocked within RCU read-side critical sections, and
* such non-existent tasks cannot possibly have been blocking the current
* grace period.
@@ -970,7 +970,7 @@ static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
}

/*
- * Because preemptable RCU does not exist, it never needs CPU-offline
+ * Because preemptible RCU does not exist, it never needs CPU-offline
* processing.
*/
static void rcu_preempt_offline_cpu(int cpu)
@@ -980,7 +980,7 @@ static void rcu_preempt_offline_cpu(int cpu)
#endif /* #ifdef CONFIG_HOTPLUG_CPU */

/*
- * Because preemptable RCU does not exist, it never has any callbacks
+ * Because preemptible RCU does not exist, it never has any callbacks
* to check.
*/
static void rcu_preempt_check_callbacks(int cpu)
@@ -988,7 +988,7 @@ static void rcu_preempt_check_callbacks(int cpu)
}

/*
- * Because preemptable RCU does not exist, it never has any callbacks
+ * Because preemptible RCU does not exist, it never has any callbacks
* to process.
*/
static void rcu_preempt_process_callbacks(void)
@@ -997,7 +997,7 @@ static void rcu_preempt_process_callbacks(void)

/*
* Wait for an rcu-preempt grace period, but make it happen quickly.
- * But because preemptable RCU does not exist, map to rcu-sched.
+ * But because preemptible RCU does not exist, map to rcu-sched.
*/
void synchronize_rcu_expedited(void)
{
@@ -1008,7 +1008,7 @@ EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
#ifdef CONFIG_HOTPLUG_CPU

/*
- * Because preemptable RCU does not exist, there is never any need to
+ * Because preemptible RCU does not exist, there is never any need to
* report on tasks preempted in RCU read-side critical sections during
* expedited RCU grace periods.
*/
@@ -1020,7 +1020,7 @@ static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp)
#endif /* #ifdef CONFIG_HOTPLUG_CPU */

/*
- * Because preemptable RCU does not exist, it never has any work to do.
+ * Because preemptible RCU does not exist, it never has any work to do.
*/
static int rcu_preempt_pending(int cpu)
{
@@ -1028,7 +1028,7 @@ static int rcu_preempt_pending(int cpu)
}

/*
- * Because preemptable RCU does not exist, it never needs any CPU.
+ * Because preemptible RCU does not exist, it never needs any CPU.
*/
static int rcu_preempt_needs_cpu(int cpu)
{
@@ -1036,7 +1036,7 @@ static int rcu_preempt_needs_cpu(int cpu)
}

/*
- * Because preemptable RCU does not exist, rcu_barrier() is just
+ * Because preemptible RCU does not exist, rcu_barrier() is just
* another name for rcu_barrier_sched().
*/
void rcu_barrier(void)
@@ -1046,7 +1046,7 @@ void rcu_barrier(void)
EXPORT_SYMBOL_GPL(rcu_barrier);

/*
- * Because preemptable RCU does not exist, there is no per-CPU
+ * Because preemptible RCU does not exist, there is no per-CPU
* data to initialize.
*/
static void __cpuinit rcu_preempt_init_percpu_data(int cpu)
@@ -1054,14 +1054,14 @@ static void __cpuinit rcu_preempt_init_percpu_data(int cpu)
}

/*
- * Because there is no preemptable RCU, there are no callbacks to move.
+ * Because there is no preemptible RCU, there are no callbacks to move.
*/
static void rcu_preempt_send_cbs_to_online(void)
{
}

/*
- * Because preemptable RCU does not exist, it need not be initialized.
+ * Because preemptible RCU does not exist, it need not be initialized.
*/
static void __init __rcu_init_preempt(void)
{
--
1.7.3.2