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authorDave Airlie <airlied@redhat.com>2025-09-15 17:51:07 +1000
committerDave Airlie <airlied@redhat.com>2025-09-15 17:51:07 +1000
commit0d9f0083f7a5a31d91d501467b499bb8c4b25bdf (patch)
tree5670a6d87e7cb5c421809babf9dc9e72ff40f8ae /kernel/sched/ext.c
parent2cda9a063dd6f21e5294092a679afdcd0fc58549 (diff)
parentf83ec76bf285bea5727f478a68b894f5543ca76e (diff)
Merge tag 'v6.17-rc6' into drm-next
This is a backmerge of Linux 6.17-rc6, needed for msm, also requested by misc. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'kernel/sched/ext.c')
-rw-r--r--kernel/sched/ext.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index 7dedc9a16281..4ae32ef179dd 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -5749,6 +5749,9 @@ static int scx_enable(struct sched_ext_ops *ops, struct bpf_link *link)
__setscheduler_class(p->policy, p->prio);
struct sched_enq_and_set_ctx ctx;
+ if (!tryget_task_struct(p))
+ continue;
+
if (old_class != new_class && p->se.sched_delayed)
dequeue_task(task_rq(p), p, DEQUEUE_SLEEP | DEQUEUE_DELAYED);
@@ -5761,6 +5764,7 @@ static int scx_enable(struct sched_ext_ops *ops, struct bpf_link *link)
sched_enq_and_set_task(&ctx);
check_class_changed(task_rq(p), p, old_class, p->prio);
+ put_task_struct(p);
}
scx_task_iter_stop(&sti);
percpu_up_write(&scx_fork_rwsem);