diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index f6d22636a4de..cc5df32db8ff 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -8722,11 +8722,12 @@ __bpf_kfunc void scx_bpf_kick_cpu(s32 cpu, u64 flags, const struct bpf_prog_aux /** * scx_bpf_dsq_nr_queued - Return the number of queued tasks * @dsq_id: id of the DSQ + * @aux: implicit BPF argument to access bpf_prog_aux hidden from BPF progs * * Return the number of tasks in the DSQ matching @dsq_id. If not found, * -%ENOENT is returned. */ -__bpf_kfunc s32 scx_bpf_dsq_nr_queued(u64 dsq_id) +__bpf_kfunc s32 scx_bpf_dsq_nr_queued(u64 dsq_id, const struct bpf_prog_aux *aux) { struct scx_sched *sch; struct scx_dispatch_q *dsq; @@ -8734,7 +8735,7 @@ __bpf_kfunc s32 scx_bpf_dsq_nr_queued(u64 dsq_id) preempt_disable(); - sch = rcu_dereference_sched(scx_root); + sch = scx_prog_sched(aux); if (unlikely(!sch)) { ret = -ENODEV; goto out; @@ -8766,21 +8767,21 @@ __bpf_kfunc s32 scx_bpf_dsq_nr_queued(u64 dsq_id) /** * scx_bpf_destroy_dsq - Destroy a custom DSQ * @dsq_id: DSQ to destroy + * @aux: implicit BPF argument to access bpf_prog_aux hidden from BPF progs * * Destroy the custom DSQ identified by @dsq_id. Only DSQs created with * scx_bpf_create_dsq() can be destroyed. The caller must ensure that the DSQ is * empty and no further tasks are dispatched to it. Ignored if called on a DSQ * which doesn't exist. Can be called from any online scx_ops operations. */ -__bpf_kfunc void scx_bpf_destroy_dsq(u64 dsq_id) +__bpf_kfunc void scx_bpf_destroy_dsq(u64 dsq_id, const struct bpf_prog_aux *aux) { struct scx_sched *sch; - rcu_read_lock(); - sch = rcu_dereference(scx_root); + guard(rcu)(); + sch = scx_prog_sched(aux); if (sch) destroy_dsq(sch, dsq_id); - rcu_read_unlock(); } /** @@ -9534,8 +9535,8 @@ BTF_KFUNCS_START(scx_kfunc_ids_any) BTF_ID_FLAGS(func, scx_bpf_task_set_slice, KF_IMPLICIT_ARGS | KF_RCU); BTF_ID_FLAGS(func, scx_bpf_task_set_dsq_vtime, KF_IMPLICIT_ARGS | KF_RCU); BTF_ID_FLAGS(func, scx_bpf_kick_cpu, KF_IMPLICIT_ARGS) -BTF_ID_FLAGS(func, scx_bpf_dsq_nr_queued) -BTF_ID_FLAGS(func, scx_bpf_destroy_dsq) +BTF_ID_FLAGS(func, scx_bpf_dsq_nr_queued, KF_IMPLICIT_ARGS) +BTF_ID_FLAGS(func, scx_bpf_destroy_dsq, KF_IMPLICIT_ARGS) BTF_ID_FLAGS(func, scx_bpf_dsq_peek, KF_IMPLICIT_ARGS | KF_RCU_PROTECTED | KF_RET_NULL) BTF_ID_FLAGS(func, scx_bpf_dsq_reenq, KF_IMPLICIT_ARGS) BTF_ID_FLAGS(func, scx_bpf_reenqueue_local___v2, KF_IMPLICIT_ARGS)