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authorPeter Zijlstra <peterz@infradead.org>2019-05-29 20:36:43 +0000
committerPeter Zijlstra <peterz@infradead.org>2019-08-08 09:09:31 +0200
commit5f2a45fc9e89e022233085e6f0f352eb6ff770bb (patch)
tree6f619f4db2fe3ab531d4a27807af7f6a8e7d2fe9 /kernel/sched/stop_task.c
parent5ba553eff0c3a7c099b1e29a740277a82c0c3314 (diff)
sched: Allow put_prev_task() to drop rq->lock
Currently the pick_next_task() loop is convoluted and ugly because of how it can drop the rq->lock and needs to restart the picking. For the RT/Deadline classes, it is put_prev_task() where we do balancing, and we could do this before the picking loop. Make this possible. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Valentin Schneider <valentin.schneider@arm.com> Cc: Aaron Lu <aaron.lwe@gmail.com> Cc: mingo@kernel.org Cc: Phil Auld <pauld@redhat.com> Cc: Julien Desfossez <jdesfossez@digitalocean.com> Cc: Nishanth Aravamudan <naravamudan@digitalocean.com> Link: https://lkml.kernel.org/r/e4519f6850477ab7f3d257062796e6425ee4ba7c.1559129225.git.vpillai@digitalocean.com
Diffstat (limited to 'kernel/sched/stop_task.c')
-rw-r--r--kernel/sched/stop_task.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/stop_task.c b/kernel/sched/stop_task.c
index 47a3d2a18a9a..8f414018d5e0 100644
--- a/kernel/sched/stop_task.c
+++ b/kernel/sched/stop_task.c
@@ -59,7 +59,7 @@ static void yield_task_stop(struct rq *rq)
BUG(); /* the stop task should never yield, its pointless. */
}
-static void put_prev_task_stop(struct rq *rq, struct task_struct *prev)
+static void put_prev_task_stop(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
struct task_struct *curr = rq->curr;
u64 delta_exec;