Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
cpuset: Remove cpuset_cpu_is_isolated()
The set of cpuset isolated CPUs is now included in HK_TYPE_DOMAIN
housekeeping cpumask. There is no usecase left interested in just
checking what is isolated by cpuset and not by the isolcpus= kernel
boot parameter.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Waiman Long <longman@redhat.com>
Cc: "Michal Koutný" <mkoutny@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Marco Crivellari <marco.crivellari@suse.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Waiman Long <longman@redhat.com>
Cc: cgroups@vger.kernel.org
+1
-21
-6
include/linux/cpuset.h
-6
include/linux/cpuset.h
···
79
79
extern void cpuset_cpus_allowed_locked(struct task_struct *p, struct cpumask *mask);
80
80
extern void cpuset_cpus_allowed(struct task_struct *p, struct cpumask *mask);
81
81
extern bool cpuset_cpus_allowed_fallback(struct task_struct *p);
82
-
extern bool cpuset_cpu_is_isolated(int cpu);
83
82
extern nodemask_t cpuset_mems_allowed(struct task_struct *p);
84
83
#define cpuset_current_mems_allowed (current->mems_allowed)
85
84
void cpuset_init_current_mems_allowed(void);
···
210
211
}
211
212
212
213
static inline bool cpuset_cpus_allowed_fallback(struct task_struct *p)
213
-
{
214
-
return false;
215
-
}
216
-
217
-
static inline bool cpuset_cpu_is_isolated(int cpu)
218
214
{
219
215
return false;
220
216
}
+1
-3
include/linux/sched/isolation.h
+1
-3
include/linux/sched/isolation.h
···
2
2
#define _LINUX_SCHED_ISOLATION_H
3
3
4
4
#include <linux/cpumask.h>
5
-
#include <linux/cpuset.h>
6
5
#include <linux/init.h>
7
6
#include <linux/tick.h>
8
7
···
83
84
static inline bool cpu_is_isolated(int cpu)
84
85
{
85
86
return !housekeeping_test_cpu(cpu, HK_TYPE_DOMAIN) ||
86
-
!housekeeping_test_cpu(cpu, HK_TYPE_TICK) ||
87
-
cpuset_cpu_is_isolated(cpu);
87
+
!housekeeping_test_cpu(cpu, HK_TYPE_TICK);
88
88
}
89
89
90
90
#endif /* _LINUX_SCHED_ISOLATION_H */
-12
kernel/cgroup/cpuset.c
-12
kernel/cgroup/cpuset.c
···
29
29
#include <linux/mempolicy.h>
30
30
#include <linux/mm.h>
31
31
#include <linux/memory.h>
32
-
#include <linux/export.h>
33
32
#include <linux/rcupdate.h>
34
33
#include <linux/sched.h>
35
34
#include <linux/sched/deadline.h>
···
1486
1487
1487
1488
isolated_cpus_updating = false;
1488
1489
}
1489
-
1490
-
/**
1491
-
* cpuset_cpu_is_isolated - Check if the given CPU is isolated
1492
-
* @cpu: the CPU number to be checked
1493
-
* Return: true if CPU is used in an isolated partition, false otherwise
1494
-
*/
1495
-
bool cpuset_cpu_is_isolated(int cpu)
1496
-
{
1497
-
return cpumask_test_cpu(cpu, isolated_cpus);
1498
-
}
1499
-
EXPORT_SYMBOL_GPL(cpuset_cpu_is_isolated);
1500
1490
1501
1491
/**
1502
1492
* rm_siblings_excl_cpus - Remove exclusive CPUs that are used by sibling cpusets