diff options
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 3dc7b8b3f94c..d3606e40ea0d 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1130,18 +1130,40 @@ static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) extern const int sched_prio_to_weight[40]; extern const u32 sched_prio_to_wmult[40]; +/* + * {de,en}queue flags: + * + * DEQUEUE_SLEEP - task is no longer runnable + * ENQUEUE_WAKEUP - task just became runnable + * + * SAVE/RESTORE - an otherwise spurious dequeue/enqueue, done to ensure tasks + * are in a known state which allows modification. Such pairs + * should preserve as much state as possible. + * + * MOVE - paired with SAVE/RESTORE, explicitly does not preserve the location + * in the runqueue. + * + * ENQUEUE_HEAD - place at front of runqueue (tail if not specified) + * ENQUEUE_REPLENISH - CBS (replenish runtime and postpone deadline) + * ENQUEUE_WAKING - sched_class::task_waking was called + * + */ + +#define DEQUEUE_SLEEP 0x01 +#define DEQUEUE_SAVE 0x02 /* matches ENQUEUE_RESTORE */ +#define DEQUEUE_MOVE 0x04 /* matches ENQUEUE_MOVE */ + #define ENQUEUE_WAKEUP 0x01 -#define ENQUEUE_HEAD 0x02 +#define ENQUEUE_RESTORE 0x02 +#define ENQUEUE_MOVE 0x04 + +#define ENQUEUE_HEAD 0x08 +#define ENQUEUE_REPLENISH 0x10 #ifdef CONFIG_SMP -#define ENQUEUE_WAKING 0x04 /* sched_class::task_waking was called */ +#define ENQUEUE_WAKING 0x20 #else #define ENQUEUE_WAKING 0x00 #endif -#define ENQUEUE_REPLENISH 0x08 -#define ENQUEUE_RESTORE 0x10 - -#define DEQUEUE_SLEEP 0x01 -#define DEQUEUE_SAVE 0x02 #define RETRY_TASK ((void *)-1UL) |