mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-30 08:02:30 +00:00
68c38fc3cb
As of commitdcce284("mm: Extend gfp masking to the page allocator") and commit7e85ee0("slab,slub: don't enable interrupts during early boot"), the slab allocator makes sure we don't attempt to sleep during boot. Therefore, remove bootmem special cases from the scheduler and use plain GFP_KERNEL instead. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1279225102-2572-1-git-send-email-penberg@cs.helsinki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
37 lines
931 B
C
37 lines
931 B
C
#ifndef _LINUX_CPUPRI_H
|
|
#define _LINUX_CPUPRI_H
|
|
|
|
#include <linux/sched.h>
|
|
|
|
#define CPUPRI_NR_PRIORITIES (MAX_RT_PRIO + 2)
|
|
#define CPUPRI_NR_PRI_WORDS BITS_TO_LONGS(CPUPRI_NR_PRIORITIES)
|
|
|
|
#define CPUPRI_INVALID -1
|
|
#define CPUPRI_IDLE 0
|
|
#define CPUPRI_NORMAL 1
|
|
/* values 2-101 are RT priorities 0-99 */
|
|
|
|
struct cpupri_vec {
|
|
raw_spinlock_t lock;
|
|
int count;
|
|
cpumask_var_t mask;
|
|
};
|
|
|
|
struct cpupri {
|
|
struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
|
|
long pri_active[CPUPRI_NR_PRI_WORDS];
|
|
int cpu_to_pri[NR_CPUS];
|
|
};
|
|
|
|
#ifdef CONFIG_SMP
|
|
int cpupri_find(struct cpupri *cp,
|
|
struct task_struct *p, struct cpumask *lowest_mask);
|
|
void cpupri_set(struct cpupri *cp, int cpu, int pri);
|
|
int cpupri_init(struct cpupri *cp);
|
|
void cpupri_cleanup(struct cpupri *cp);
|
|
#else
|
|
#define cpupri_set(cp, cpu, pri) do { } while (0)
|
|
#define cpupri_init() do { } while (0)
|
|
#endif
|
|
|
|
#endif /* _LINUX_CPUPRI_H */
|