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    Subject[068/200] drivers/base/cpu.c: fix the output from /sys/devices/system/cpu/offline
    2.6.34-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    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
    @@ -186,7 +186,7 @@ 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);




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