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authorRusty Russell <rusty@rustcorp.com.au>2009-03-26 15:24:59 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-03-26 15:24:33 +0100
commit93632d1bf7447d445c6fc274c8931152f9412b56 (patch)
tree92034c77deb9dff69e62224acb6f7b2e40acc3dc /arch/s390/kernel
parent6f7a321d5feb0bc9aa7f7b14eceb1e6a63bff937 (diff)
[S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.
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 (I also updated the immediate sites to use the new cpumask_ operators). 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> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/smp.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index fe5f8dc1e6f..13052a4ed71 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -297,8 +297,8 @@ static int smp_rescan_cpus_sigp(cpumask_t avail)
{
int cpu_id, logical_cpu;
- logical_cpu = first_cpu(avail);
- if (logical_cpu == NR_CPUS)
+ logical_cpu = cpumask_first(&avail);
+ if (logical_cpu >= nr_cpu_ids)
return 0;
for (cpu_id = 0; cpu_id <= 65535; cpu_id++) {
if (cpu_known(cpu_id))
@@ -309,8 +309,8 @@ static int smp_rescan_cpus_sigp(cpumask_t avail)
continue;
cpu_set(logical_cpu, cpu_present_map);
smp_cpu_state[logical_cpu] = CPU_STATE_CONFIGURED;
- logical_cpu = next_cpu(logical_cpu, avail);
- if (logical_cpu == NR_CPUS)
+ logical_cpu = cpumask_next(logical_cpu, &avail);
+ if (logical_cpu >= nr_cpu_ids)
break;
}
return 0;
@@ -322,8 +322,8 @@ static int smp_rescan_cpus_sclp(cpumask_t avail)
int cpu_id, logical_cpu, cpu;
int rc;
- logical_cpu = first_cpu(avail);
- if (logical_cpu == NR_CPUS)
+ logical_cpu = cpumask_first(&avail);
+ if (logical_cpu >= nr_cpu_ids)
return 0;
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (!info)
@@ -344,8 +344,8 @@ static int smp_rescan_cpus_sclp(cpumask_t avail)
smp_cpu_state[logical_cpu] = CPU_STATE_STANDBY;
else
smp_cpu_state[logical_cpu] = CPU_STATE_CONFIGURED;
- logical_cpu = next_cpu(logical_cpu, avail);
- if (logical_cpu == NR_CPUS)
+ logical_cpu = cpumask_next(logical_cpu, &avail);
+ if (logical_cpu >= nr_cpu_ids)
break;
}
out:
@@ -591,7 +591,7 @@ static int __init setup_possible_cpus(char *s)
pcpus = simple_strtoul(s, NULL, 0);
cpu_possible_map = cpumask_of_cpu(0);
- for (cpu = 1; cpu < pcpus && cpu < NR_CPUS; cpu++)
+ for (cpu = 1; cpu < pcpus && cpu < nr_cpu_ids; cpu++)
cpu_set(cpu, cpu_possible_map);
return 0;
}