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authorRusty Russell <rusty@rustcorp.com.au>2009-01-01 10:12:15 +1030
committerRusty Russell <rusty@rustcorp.com.au>2009-01-01 10:12:15 +1030
commit4f4b6c1a94a8735bbdc030a2911cf395495645b6 (patch)
tree0572f8b8be03a32b4ae7b3deb4b1412226a0f598
parent9e2f913df70b378379a358a44e7d286f7b765e8e (diff)
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cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: core
Impact: cleanup In future, all cpumask ops will only be valid (in general) for bit numbers < nr_cpu_ids. So use that instead of NR_CPUS in iterators and other comparisons. 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> Acked-by: James Morris <jmorris@namei.org> Cc: Eric Biederman <ebiederm@xmission.com>
-rw-r--r--kernel/kexec.c2
-rw-r--r--kernel/smp.c2
-rw-r--r--security/selinux/selinuxfs.c2
3 files changed, 3 insertions, 3 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index ac0fde7..3fb855a 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1116,7 +1116,7 @@ void crash_save_cpu(struct pt_regs *regs, int cpu)
struct elf_prstatus prstatus;
u32 *buf;
- if ((cpu < 0) || (cpu >= NR_CPUS))
+ if ((cpu < 0) || (cpu >= nr_cpu_ids))
return;
/* Using ELF notes here is opportunistic.
diff --git a/kernel/smp.c b/kernel/smp.c
index 172b182..5cfa0e5 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -223,7 +223,7 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
local_irq_save(flags);
func(info);
local_irq_restore(flags);
- } else if ((unsigned)cpu < NR_CPUS && cpu_online(cpu)) {
+ } else if ((unsigned)cpu < nr_cpu_ids && cpu_online(cpu)) {
struct call_single_data *data = NULL;
if (!wait) {
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index c863036..e552099 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1211,7 +1211,7 @@ static struct avc_cache_stats *sel_avc_get_stat_idx(loff_t *idx)
{
int cpu;
- for (cpu = *idx; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *idx; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*idx = cpu + 1;