diff options
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 86fc36069f38..3ccd35c22f0f 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -320,21 +320,6 @@ struct dl_bw { u64 total_bw; }; -/* - * Verify the fitness of task @p to run on @cpu taking into account the - * CPU original capacity and the runtime/deadline ratio of the task. - * - * The function will return true if the CPU original capacity of the - * @cpu scaled by SCHED_CAPACITY_SCALE >= runtime/deadline ratio of the - * task and false otherwise. - */ -static inline bool dl_task_fits_capacity(struct task_struct *p, int cpu) -{ - unsigned long cap = arch_scale_cpu_capacity(cpu); - - return cap_scale(p->dl.dl_deadline, cap) >= p->dl.dl_runtime; -} - extern void init_dl_bw(struct dl_bw *dl_b); extern int sched_dl_global_validate(void); extern void sched_dl_do_global(void); @@ -2899,6 +2884,21 @@ unsigned long effective_cpu_util(int cpu, unsigned long util_cfs, enum cpu_util_type type, struct task_struct *p); +/* + * Verify the fitness of task @p to run on @cpu taking into account the + * CPU original capacity and the runtime/deadline ratio of the task. + * + * The function will return true if the original capacity of @cpu is + * greater than or equal to task's deadline density right shifted by + * (BW_SHIFT - SCHED_CAPACITY_SHIFT) and false otherwise. + */ +static inline bool dl_task_fits_capacity(struct task_struct *p, int cpu) +{ + unsigned long cap = arch_scale_cpu_capacity(cpu); + + return cap >= p->dl.dl_density >> (BW_SHIFT - SCHED_CAPACITY_SHIFT); +} + static inline unsigned long cpu_bw_dl(struct rq *rq) { return (rq->dl.running_bw * SCHED_CAPACITY_SCALE) >> BW_SHIFT; |