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Subject[patch 01/13] ia64/topology: Remove cpus_allowed manipulation
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 <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: linux-ia64@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;


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