| From cdc6e3d3968052cebb2f2ddcd742bff29fbd1a90 Mon Sep 17 00:00:00 2001 |
| From: Jan Beulich <JBeulich@novell.com> |
| Date: Tue, 27 Apr 2010 14:01:20 -0700 |
| Subject: drivers/base/cpu.c: fix the output from /sys/devices/system/cpu/offline |
| |
| From: Jan Beulich <JBeulich@novell.com> |
| |
| commit cdc6e3d3968052cebb2f2ddcd742bff29fbd1a90 upstream. |
| |
| Without CONFIG_CPUMASK_OFFSTACK, simply inverting cpu_online_mask leads |
| to CPUs beyond nr_cpu_ids to be displayed twice and CPUs not even |
| possible to be displayed as offline. |
| |
| Signed-off-by: Jan Beulich <jbeulich@novell.com> |
| Cc: Andi Kleen <ak@linux.intel.com> |
| Cc: Stephen Rothwell <sfr@canb.auug.org.au> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| drivers/base/cpu.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/drivers/base/cpu.c |
| +++ b/drivers/base/cpu.c |
| @@ -149,7 +149,7 @@ static ssize_t print_cpus_offline(struct |
| /* display offline cpus < nr_cpu_ids */ |
| if (!alloc_cpumask_var(&offline, GFP_KERNEL)) |
| return -ENOMEM; |
| - cpumask_complement(offline, cpu_online_mask); |
| + cpumask_andnot(offline, cpu_possible_mask, cpu_online_mask); |
| n = cpulist_scnprintf(buf, len, offline); |
| free_cpumask_var(offline); |
| |
