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authorIngo Molnar <mingo@elte.hu>2009-01-18 18:37:14 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-18 18:37:14 +0100
commitb2b062b8163391c42b3219d466ca1ac9742b9c7b (patch)
treef3f920c09b8de694b1bc1d4b878cfd2b0b98c913 /kernel/rcuclassic.c
parenta9de18eb761f7c1c860964b2e5addc1a35c7e861 (diff)
parent99937d6455cea95405ac681c86a857d0fcd530bd (diff)
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Merge branch 'core/percpu' into stackprotector
Conflicts: arch/x86/include/asm/pda.h arch/x86/include/asm/system.h Also, moved include/asm-x86/stackprotector.h to arch/x86/include/asm. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/rcuclassic.c')
-rw-r--r--kernel/rcuclassic.c32
1 files changed, 17 insertions, 15 deletions
diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c
index e503a002f330..490934fc7ac3 100644
--- a/kernel/rcuclassic.c
+++ b/kernel/rcuclassic.c
@@ -63,14 +63,14 @@ static struct rcu_ctrlblk rcu_ctrlblk = {
.completed = -300,
.pending = -300,
.lock = __SPIN_LOCK_UNLOCKED(&rcu_ctrlblk.lock),
- .cpumask = CPU_MASK_NONE,
+ .cpumask = CPU_BITS_NONE,
};
static struct rcu_ctrlblk rcu_bh_ctrlblk = {
.cur = -300,
.completed = -300,
.pending = -300,
.lock = __SPIN_LOCK_UNLOCKED(&rcu_bh_ctrlblk.lock),
- .cpumask = CPU_MASK_NONE,
+ .cpumask = CPU_BITS_NONE,
};
DEFINE_PER_CPU(struct rcu_data, rcu_data) = { 0L };
@@ -85,7 +85,6 @@ static void force_quiescent_state(struct rcu_data *rdp,
struct rcu_ctrlblk *rcp)
{
int cpu;
- cpumask_t cpumask;
unsigned long flags;
set_need_resched();
@@ -96,10 +95,10 @@ static void force_quiescent_state(struct rcu_data *rdp,
* Don't send IPI to itself. With irqs disabled,
* rdp->cpu is the current cpu.
*
- * cpu_online_map is updated by the _cpu_down()
+ * cpu_online_mask is updated by the _cpu_down()
* using __stop_machine(). Since we're in irqs disabled
* section, __stop_machine() is not exectuting, hence
- * the cpu_online_map is stable.
+ * the cpu_online_mask is stable.
*
* However, a cpu might have been offlined _just_ before
* we disabled irqs while entering here.
@@ -107,13 +106,14 @@ static void force_quiescent_state(struct rcu_data *rdp,
* notification, leading to the offlined cpu's bit
* being set in the rcp->cpumask.
*
- * Hence cpumask = (rcp->cpumask & cpu_online_map) to prevent
+ * Hence cpumask = (rcp->cpumask & cpu_online_mask) to prevent
* sending smp_reschedule() to an offlined CPU.
*/
- cpus_and(cpumask, rcp->cpumask, cpu_online_map);
- cpu_clear(rdp->cpu, cpumask);
- for_each_cpu_mask_nr(cpu, cpumask)
- smp_send_reschedule(cpu);
+ for_each_cpu_and(cpu,
+ to_cpumask(rcp->cpumask), cpu_online_mask) {
+ if (cpu != rdp->cpu)
+ smp_send_reschedule(cpu);
+ }
}
spin_unlock_irqrestore(&rcp->lock, flags);
}
@@ -193,7 +193,7 @@ static void print_other_cpu_stall(struct rcu_ctrlblk *rcp)
printk(KERN_ERR "INFO: RCU detected CPU stalls:");
for_each_possible_cpu(cpu) {
- if (cpu_isset(cpu, rcp->cpumask))
+ if (cpumask_test_cpu(cpu, to_cpumask(rcp->cpumask)))
printk(" %d", cpu);
}
printk(" (detected by %d, t=%ld jiffies)\n",
@@ -221,7 +221,8 @@ static void check_cpu_stall(struct rcu_ctrlblk *rcp)
long delta;
delta = jiffies - rcp->jiffies_stall;
- if (cpu_isset(smp_processor_id(), rcp->cpumask) && delta >= 0) {
+ if (cpumask_test_cpu(smp_processor_id(), to_cpumask(rcp->cpumask)) &&
+ delta >= 0) {
/* We haven't checked in, so go dump stack. */
print_cpu_stall(rcp);
@@ -393,7 +394,8 @@ static void rcu_start_batch(struct rcu_ctrlblk *rcp)
* unnecessarily.
*/
smp_mb();
- cpus_andnot(rcp->cpumask, cpu_online_map, nohz_cpu_mask);
+ cpumask_andnot(to_cpumask(rcp->cpumask),
+ cpu_online_mask, nohz_cpu_mask);
rcp->signaled = 0;
}
@@ -406,8 +408,8 @@ static void rcu_start_batch(struct rcu_ctrlblk *rcp)
*/
static void cpu_quiet(int cpu, struct rcu_ctrlblk *rcp)
{
- cpu_clear(cpu, rcp->cpumask);
- if (cpus_empty(rcp->cpumask)) {
+ cpumask_clear_cpu(cpu, to_cpumask(rcp->cpumask));
+ if (cpumask_empty(to_cpumask(rcp->cpumask))) {
/* batch completed ! */
rcp->completed = rcp->cur;
rcu_start_batch(rcp);