linux/kernel/sched/cpudeadline.h
Peter Zijlstra 944770ab54 sched/deadline: Replace NR_CPUS arrays
Tejun reported that his resume was failing due to order-3 allocations
from sched_domain building.

Replace the NR_CPUS arrays in there with a dynamically allocated
array.

Reported-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-kat4gl1m5a6dwy6nzuqox45e@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-05-22 10:21:28 +02:00

34 lines
656 B
C

#ifndef _LINUX_CPUDL_H
#define _LINUX_CPUDL_H
#include <linux/sched.h>
#define IDX_INVALID -1
struct cpudl_item {
u64 dl;
int cpu;
int idx;
};
struct cpudl {
raw_spinlock_t lock;
int size;
cpumask_var_t free_cpus;
struct cpudl_item *elements;
};
#ifdef CONFIG_SMP
int cpudl_find(struct cpudl *cp, struct task_struct *p,
struct cpumask *later_mask);
void cpudl_set(struct cpudl *cp, int cpu, u64 dl, int is_valid);
int cpudl_init(struct cpudl *cp);
void cpudl_cleanup(struct cpudl *cp);
#else
#define cpudl_set(cp, cpu, dl) do { } while (0)
#define cpudl_init() do { } while (0)
#endif /* CONFIG_SMP */
#endif /* _LINUX_CPUDL_H */