[patch 01/13] ia64/topology: Remove cpus_allowed manipulation

[Thomas Gleixner]

The CPU hotplug callback fiddles with the cpus_allowed pointer to pin the
calling thread on the plugged CPU. That's already guaranteed by the hotplug
core code.

Remove it.

Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Cc: Tony Luck <tony.l...@intel.com>
Cc: Fenghua Yu <fenghua...@intel.com>
Cc: linux-i...@vger.kernel.org
---
 arch/ia64/kernel/topology.c |    6 ------
 1 file changed, 6 deletions(-)

--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -355,18 +355,12 @@ static int cache_add_dev(unsigned int cp
        unsigned long i, j;
        struct cache_info *this_object;
        int retval = 0;
-       cpumask_t oldmask;
 
        if (all_cpu_cache_info[cpu].kobj.parent)
                return 0;
 
-       oldmask = current->cpus_allowed;
-       retval = set_cpus_allowed_ptr(current, cpumask_of(cpu));
-       if (unlikely(retval))
-               return retval;
 
        retval = cpu_cache_sysfs_init(cpu);
-       set_cpus_allowed_ptr(current, &oldmask);
        if (unlikely(retval < 0))
                return retval;