[tip:sched/core] ia64/topology: Remove cpus_allowed manipulation

[tip-bot for Thomas Gleixner]

Commit-ID:  048c9b954e20396e0c45ee778466994d1be2e612
Gitweb: http://git.kernel.org/tip/048c9b954e20396e0c45ee778466994d1be2e612
Author: Thomas Gleixner 
AuthorDate: Wed, 12 Apr 2017 22:07:27 +0200
Committer:  Thomas Gleixner 
CommitDate: Sat, 15 Apr 2017 12:20:52 +0200

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 
Cc: Fenghua Yu 
Cc: Tony Luck 
Cc: linux-i...@vger.kernel.org
Cc: Herbert Xu 
Cc: "Rafael J. Wysocki" 
Cc: Peter Zijlstra 
Cc: Benjamin Herrenschmidt 
Cc: Sebastian Siewior 
Cc: Lai Jiangshan 
Cc: Viresh Kumar 
Cc: Michael Ellerman 
Cc: Tejun Heo 
Cc: "David S. Miller" 
Cc: Len Brown 
Link: http://lkml.kernel.org/r/20170412201042.174518...@linutronix.de
Signed-off-by: Thomas Gleixner 

---
 arch/ia64/kernel/topology.c | 6 --
 1 file changed, 6 deletions(-)

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 1a68f01..d76529c 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -355,18 +355,12 @@ static int cache_add_dev(unsigned int cpu)
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, );
if (unlikely(retval < 0))
return retval;
 

[tip:sched/core] ia64/topology: Remove cpus_allowed manipulation

[tip-bot for Thomas Gleixner]

Commit-ID:  048c9b954e20396e0c45ee778466994d1be2e612
Gitweb: http://git.kernel.org/tip/048c9b954e20396e0c45ee778466994d1be2e612
Author: Thomas Gleixner 
AuthorDate: Wed, 12 Apr 2017 22:07:27 +0200
Committer:  Thomas Gleixner 
CommitDate: Sat, 15 Apr 2017 12:20:52 +0200

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 
Cc: Fenghua Yu 
Cc: Tony Luck 
Cc: linux-i...@vger.kernel.org
Cc: Herbert Xu 
Cc: "Rafael J. Wysocki" 
Cc: Peter Zijlstra 
Cc: Benjamin Herrenschmidt 
Cc: Sebastian Siewior 
Cc: Lai Jiangshan 
Cc: Viresh Kumar 
Cc: Michael Ellerman 
Cc: Tejun Heo 
Cc: "David S. Miller" 
Cc: Len Brown 
Link: http://lkml.kernel.org/r/20170412201042.174518...@linutronix.de
Signed-off-by: Thomas Gleixner 

---
 arch/ia64/kernel/topology.c | 6 --
 1 file changed, 6 deletions(-)

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 1a68f01..d76529c 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -355,18 +355,12 @@ static int cache_add_dev(unsigned int cpu)
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, );
if (unlikely(retval < 0))
return retval;