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authorJan Beulich <JBeulich@novell.com>2010-04-27 14:01:20 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-21 09:37:28 -0700
commitcdc6e3d3968052cebb2f2ddcd742bff29fbd1a90 (patch)
tree874fbded0f516a84112200080fb22d28920e6362 /drivers
parentd7dbf4ffee1c7a17e2e5b5f01efe76fbd1671db6 (diff)
drivers/base/cpu.c: fix the output from /sys/devices/system/cpu/offline
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> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/base/cpu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index f35719aab3c1..251acea3d359 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -186,7 +186,7 @@ static ssize_t print_cpus_offline(struct sysdev_class *class,
/* 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);