From 0e5519548fdc8eadc3eacb49b1908d44d347fb2b Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 28 Mar 2006 14:50:51 -0800 Subject: [PATCH] for_each_possible_cpu: powerpc 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 Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/sysfs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/kernel/sysfs.c') diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index aca2f09cd84..73560ef6f80 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -74,7 +74,7 @@ static int __init smt_setup(void) val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay", NULL); if (!smt_snooze_cmdline && val) { - for_each_cpu(cpu) + for_each_possible_cpu(cpu) per_cpu(smt_snooze_delay, cpu) = *val; } @@ -93,7 +93,7 @@ static int __init setup_smt_snooze_delay(char *str) smt_snooze_cmdline = 1; if (get_option(&str, &snooze)) { - for_each_cpu(cpu) + for_each_possible_cpu(cpu) per_cpu(smt_snooze_delay, cpu) = snooze; } @@ -347,7 +347,7 @@ static int __init topology_init(void) register_cpu_notifier(&sysfs_cpu_nb); - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { struct cpu *c = &per_cpu(cpu_devices, cpu); #ifdef CONFIG_NUMA -- cgit v1.2.3