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    Subject[PATCH 10/15] sched/fair: Propagate enqueue flags into place_entity()
    This allows place_entity() to consider ENQUEUE_WAKEUP and
    ENQUEUE_MIGRATED.

    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    ---
    kernel/sched/fair.c | 10 +++++-----
    kernel/sched/sched.h | 1 +
    2 files changed, 6 insertions(+), 5 deletions(-)

    --- a/kernel/sched/fair.c
    +++ b/kernel/sched/fair.c
    @@ -4909,7 +4909,7 @@ static inline void update_misfit_status(
    #endif /* CONFIG_SMP */

    static void
    -place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int initial)
    +place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
    {
    u64 vslice = calc_delta_fair(se->slice, se);
    u64 vruntime = avg_vruntime(cfs_rq);
    @@ -4998,7 +4998,7 @@ place_entity(struct cfs_rq *cfs_rq, stru
    * on average, halfway through their slice, as such start tasks
    * off with half a slice to ease into the competition.
    */
    - if (sched_feat(PLACE_DEADLINE_INITIAL) && initial)
    + if (sched_feat(PLACE_DEADLINE_INITIAL) && (flags & ENQUEUE_INITIAL))
    vslice /= 2;

    /*
    @@ -5021,7 +5021,7 @@ enqueue_entity(struct cfs_rq *cfs_rq, st
    * update_curr().
    */
    if (curr)
    - place_entity(cfs_rq, se, 0);
    + place_entity(cfs_rq, se, flags);

    update_curr(cfs_rq);

    @@ -5048,7 +5048,7 @@ enqueue_entity(struct cfs_rq *cfs_rq, st
    * we can place the entity.
    */
    if (!curr)
    - place_entity(cfs_rq, se, 0);
    + place_entity(cfs_rq, se, flags);

    account_entity_enqueue(cfs_rq, se);

    @@ -12053,7 +12053,7 @@ static void task_fork_fair(struct task_s
    curr = cfs_rq->curr;
    if (curr)
    update_curr(cfs_rq);
    - place_entity(cfs_rq, se, 1);
    + place_entity(cfs_rq, se, ENQUEUE_INITIAL);
    rq_unlock(rq, &rf);
    }

    --- a/kernel/sched/sched.h
    +++ b/kernel/sched/sched.h
    @@ -2174,6 +2174,7 @@ extern const u32 sched_prio_to_wmult[40
    #else
    #define ENQUEUE_MIGRATED 0x00
    #endif
    +#define ENQUEUE_INITIAL 0x80

    #define RETRY_TASK ((void *)-1UL)


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