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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2006-03-28 14:50:52 -0800 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-03-29 13:44:16 +1100 |
| commit | b848e0a07dd5a874821bb587bb724fac4aa45bad (patch) | |
| tree | 43c81d75963421146adb340c6ebb617c426718a1 /arch/ppc | |
| parent | 0e5519548fdc8eadc3eacb49b1908d44d347fb2b (diff) | |
| download | op-kernel-dev-b848e0a07dd5a874821bb587bb724fac4aa45bad.zip op-kernel-dev-b848e0a07dd5a874821bb587bb724fac4aa45bad.tar.gz | |
[PATCH] for_each_possible_cpu: ppc
for_each_cpu() actually iterates across all possible CPUs. We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs. This is inefficient and
possibly buggy.
We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.
This patch replaces for_each_cpu with for_each_possible_cpu.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc')
| -rw-r--r-- | arch/ppc/kernel/setup.c | 2 | ||||
| -rw-r--r-- | arch/ppc/kernel/smp.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c index 7eb91a2..1f79e84 100644 --- a/arch/ppc/kernel/setup.c +++ b/arch/ppc/kernel/setup.c @@ -474,7 +474,7 @@ int __init ppc_init(void) if ( ppc_md.progress ) ppc_md.progress(" ", 0xffff); /* register CPU devices */ - for_each_cpu(i) + for_each_possible_cpu(i) register_cpu(&cpu_devices[i], i, NULL); /* call platform init */ diff --git a/arch/ppc/kernel/smp.c b/arch/ppc/kernel/smp.c index e55cdda..f77795a 100644 --- a/arch/ppc/kernel/smp.c +++ b/arch/ppc/kernel/smp.c @@ -311,7 +311,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) /* Backup CPU 0 state */ __save_cpu_setup(); - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { if (cpu == smp_processor_id()) continue; /* create a process for the processor */ |
