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authorRusty Russell <rusty@rustcorp.com.au>2009-03-16 14:12:42 +1030
committerRusty Russell <rusty@rustcorp.com.au>2009-03-16 14:12:42 +1030
commit5dd3c9949a3e92ea7fd8c75d888031f7aff1f1d0 (patch)
tree18e60117e1e547fe1e973e67a43754a3d8538104 /arch
parent40fe697a1759b85f5e06c490599f4f7b03de3be7 (diff)
downloadblackbird-obmc-linux-5dd3c9949a3e92ea7fd8c75d888031f7aff1f1d0.tar.gz
blackbird-obmc-linux-5dd3c9949a3e92ea7fd8c75d888031f7aff1f1d0.zip
cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: ia64
Impact: cleanup, futureproof In fact, all cpumask ops will only be valid (in general) for bit numbers < nr_cpu_ids. So use that instead of NR_CPUS in various places. This is always safe: no cpu number can be >= nr_cpu_ids, and nr_cpu_ids is initialized to NR_CPUS at boot. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kernel/acpi.c6
-rw-r--r--arch/ia64/kernel/mca.c6
-rw-r--r--arch/ia64/kernel/perfmon.c4
-rw-r--r--arch/ia64/kernel/salinfo.c6
-rw-r--r--arch/ia64/kernel/setup.c4
-rw-r--r--arch/ia64/sn/kernel/setup.c2
-rw-r--r--arch/ia64/sn/kernel/sn2/sn2_smp.c6
-rw-r--r--arch/ia64/sn/kernel/sn2/sn_hwperf.c2
8 files changed, 18 insertions, 18 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index d541671caf4a..c4f41aca107f 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -924,9 +924,9 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
buffer.length = ACPI_ALLOCATE_BUFFER;
buffer.pointer = NULL;
- cpus_complement(tmp_map, cpu_present_map);
- cpu = first_cpu(tmp_map);
- if (cpu >= NR_CPUS)
+ cpumask_complement(&tmp_map, cpu_present_mask);
+ cpu = cpumask_first(&tmp_map);
+ if (cpu >= nr_cpu_ids)
return -EINVAL;
acpi_map_cpu2node(handle, cpu, physid);
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index bab1de2d2f6a..8f33a8840422 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1456,9 +1456,9 @@ ia64_mca_cmc_int_caller(int cmc_irq, void *arg)
ia64_mca_cmc_int_handler(cmc_irq, arg);
- for (++cpuid ; cpuid < NR_CPUS && !cpu_online(cpuid) ; cpuid++);
+ cpuid = cpumask_next(cpuid+1, cpu_online_mask);
- if (cpuid < NR_CPUS) {
+ if (cpuid < nr_cpu_ids) {
platform_send_ipi(cpuid, IA64_CMCP_VECTOR, IA64_IPI_DM_INT, 0);
} else {
/* If no log record, switch out of polling mode */
@@ -1525,7 +1525,7 @@ ia64_mca_cpe_int_caller(int cpe_irq, void *arg)
ia64_mca_cpe_int_handler(cpe_irq, arg);
- for (++cpuid ; cpuid < NR_CPUS && !cpu_online(cpuid) ; cpuid++);
+ cpuid = cpumask_next(cpuid+1, cpu_online_mask);
if (cpuid < NR_CPUS) {
platform_send_ipi(cpuid, IA64_CPEP_VECTOR, IA64_IPI_DM_INT, 0);
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 0e499757309b..6fc1e638f0eb 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -5603,7 +5603,7 @@ pfm_interrupt_handler(int irq, void *arg)
* /proc/perfmon interface, for debug only
*/
-#define PFM_PROC_SHOW_HEADER ((void *)NR_CPUS+1)
+#define PFM_PROC_SHOW_HEADER ((void *)nr_cpu_ids+1)
static void *
pfm_proc_start(struct seq_file *m, loff_t *pos)
@@ -5612,7 +5612,7 @@ pfm_proc_start(struct seq_file *m, loff_t *pos)
return PFM_PROC_SHOW_HEADER;
}
- while (*pos <= NR_CPUS) {
+ while (*pos <= nr_cpu_ids) {
if (cpu_online(*pos - 1)) {
return (void *)*pos;
}
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index ecb9eb78d687..7053c55b7649 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -317,7 +317,7 @@ retry:
}
n = data->cpu_check;
- for (i = 0; i < NR_CPUS; i++) {
+ for (i = 0; i < nr_cpu_ids; i++) {
if (cpu_isset(n, data->cpu_event)) {
if (!cpu_online(n)) {
cpu_clear(n, data->cpu_event);
@@ -326,7 +326,7 @@ retry:
cpu = n;
break;
}
- if (++n == NR_CPUS)
+ if (++n == nr_cpu_ids)
n = 0;
}
@@ -337,7 +337,7 @@ retry:
/* for next read, start checking at next CPU */
data->cpu_check = cpu;
- if (++data->cpu_check == NR_CPUS)
+ if (++data->cpu_check == nr_cpu_ids)
data->cpu_check = 0;
snprintf(cmd, sizeof(cmd), "read %d\n", cpu);
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 865af27c7737..ae9ec3dc76b8 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -730,10 +730,10 @@ static void *
c_start (struct seq_file *m, loff_t *pos)
{
#ifdef CONFIG_SMP
- while (*pos < NR_CPUS && !cpu_isset(*pos, cpu_online_map))
+ while (*pos < nr_cpu_ids && !cpu_online(*pos))
++*pos;
#endif
- return *pos < NR_CPUS ? cpu_data(*pos) : NULL;
+ return *pos < nr_cpu_ids ? cpu_data(*pos) : NULL;
}
static void *
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 02c5b8a9fb60..12097776afc0 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -750,7 +750,7 @@ nasid_slice_to_cpuid(int nasid, int slice)
{
long cpu;
- for (cpu = 0; cpu < NR_CPUS; cpu++)
+ for (cpu = 0; cpu < nr_cpu_ids; cpu++)
if (cpuid_to_nasid(cpu) == nasid &&
cpuid_to_slice(cpu) == slice)
return cpu;
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index e585f9a2afb9..209e1eb467da 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -461,7 +461,7 @@ bool sn_cpu_disable_allowed(int cpu)
static void *sn2_ptc_seq_start(struct seq_file *file, loff_t * offset)
{
- if (*offset < NR_CPUS)
+ if (*offset < nr_cpu_ids)
return offset;
return NULL;
}
@@ -469,7 +469,7 @@ static void *sn2_ptc_seq_start(struct seq_file *file, loff_t * offset)
static void *sn2_ptc_seq_next(struct seq_file *file, void *data, loff_t * offset)
{
(*offset)++;
- if (*offset < NR_CPUS)
+ if (*offset < nr_cpu_ids)
return offset;
return NULL;
}
@@ -491,7 +491,7 @@ static int sn2_ptc_seq_show(struct seq_file *file, void *data)
seq_printf(file, "# ptctest %d, flushopt %d\n", sn2_ptctest, sn2_flush_opt);
}
- if (cpu < NR_CPUS && cpu_online(cpu)) {
+ if (cpu < nr_cpu_ids && cpu_online(cpu)) {
stat = &per_cpu(ptcstats, cpu);
seq_printf(file, "cpu %d %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld\n", cpu, stat->ptc_l,
stat->change_rid, stat->shub_ptc_flushes, stat->nodes_flushed,
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index be339477f906..45f3c2390428 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -612,7 +612,7 @@ static int sn_hwperf_op_cpu(struct sn_hwperf_op_info *op_info)
op_info->a->arg &= SN_HWPERF_ARG_OBJID_MASK;
if (cpu != SN_HWPERF_ARG_ANY_CPU) {
- if (cpu >= NR_CPUS || !cpu_online(cpu)) {
+ if (cpu >= nr_cpu_ids || !cpu_online(cpu)) {
r = -EINVAL;
goto out;
}
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