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[PATCH] for_each_possible_cpu: powerpc

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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>
This commit is contained in:
KAMEZAWA Hiroyuki
2006-03-28 14:50:51 -08:00
committed by Paul Mackerras
parent bab70a4af7
commit 0e5519548f
14 changed files with 21 additions and 21 deletions
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4
arch/powerpc/kernel/time.c
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@@ -261,7 +261,7 @@ void snapshot_timebases(void)
if (!cpu_has_feature(CPU_FTR_PURR))
return;
for_each_cpu(cpu)
for_each_possible_cpu(cpu)
spin_lock_init(&per_cpu(cpu_purr_data, cpu).lock);
on_each_cpu(snapshot_tb_and_purr, NULL, 0, 1);
}
@@ -751,7 +751,7 @@ void __init smp_space_timers(unsigned int max_cpus)
* systems works better if the two threads' timebase interrupts
* are staggered by half a jiffy with respect to each other.
*/
for_each_cpu(i) {
for_each_possible_cpu(i) {
if (i == boot_cpuid)
continue;
if (i == (boot_cpuid ^ 1))