sched/fair: Move enqueue migrate handling
Move the entity migrate handling from enqueue_entity_load_avg() to update_load_avg(). This has two benefits: - {en,de}queue_entity_load_avg() will become purely about managing runnable_load - we can avoid a double update_tg_load_avg() and reduce pressure on the global tg->shares cacheline The reason we do this is so that we can change update_cfs_shares() to change both weight and (future) runnable_weight. For this to work we need to have the cfs_rq averages up-to-date (which means having done the attach), but we need the cfs_rq->avg.runnable_avg to not yet include the se's contribution (since se->on_rq == 0). Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
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