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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2006-03-28 14:50:52 -0800
committerPaul Mackerras <paulus@samba.org>2006-03-29 13:44:16 +1100
commitb848e0a07dd5a874821bb587bb724fac4aa45bad (patch)
tree43c81d75963421146adb340c6ebb617c426718a1 /arch/ppc
parent0e5519548fdc8eadc3eacb49b1908d44d347fb2b (diff)
downloadop-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.c2
-rw-r--r--arch/ppc/kernel/smp.c2
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 */
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