sched_ext: Mark scx_bpf_dsq_move_set_[slice|vtime]() with KF_RCU

scx_bpf_dsq_move_set_slice() and scx_bpf_dsq_move_set_vtime() take a DSQ
iterator argument which has to be valid. Mark them with KF_RCU.

Fixes: 4c30f5c ("sched_ext: Implement scx_bpf_dispatch[_vtime]_from_dsq()")
Cc: stable@vger.kernel.org # v6.12+
Acked-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

Author: htejun

kernel/sched/ext.c

@@ -5688,8 +5688,8 @@ BTF_KFUNCS_START(scx_kfunc_ids_dispatch)
 BTF_ID_FLAGS(func, scx_bpf_dispatch_nr_slots)
 BTF_ID_FLAGS(func, scx_bpf_dispatch_cancel)
 BTF_ID_FLAGS(func, scx_bpf_dsq_move_to_local)
-BTF_ID_FLAGS(func, scx_bpf_dsq_move_set_slice)
-BTF_ID_FLAGS(func, scx_bpf_dsq_move_set_vtime)
+BTF_ID_FLAGS(func, scx_bpf_dsq_move_set_slice, KF_RCU)
+BTF_ID_FLAGS(func, scx_bpf_dsq_move_set_vtime, KF_RCU)
 BTF_ID_FLAGS(func, scx_bpf_dsq_move, KF_RCU)
 BTF_ID_FLAGS(func, scx_bpf_dsq_move_vtime, KF_RCU)
 BTF_KFUNCS_END(scx_kfunc_ids_dispatch)
@@ -5820,8 +5820,8 @@ __bpf_kfunc_end_defs();
 
 BTF_KFUNCS_START(scx_kfunc_ids_unlocked)
 BTF_ID_FLAGS(func, scx_bpf_create_dsq, KF_SLEEPABLE)
-BTF_ID_FLAGS(func, scx_bpf_dsq_move_set_slice)
-BTF_ID_FLAGS(func, scx_bpf_dsq_move_set_vtime)
+BTF_ID_FLAGS(func, scx_bpf_dsq_move_set_slice, KF_RCU)
+BTF_ID_FLAGS(func, scx_bpf_dsq_move_set_vtime, KF_RCU)
 BTF_ID_FLAGS(func, scx_bpf_dsq_move, KF_RCU)
 BTF_ID_FLAGS(func, scx_bpf_dsq_move_vtime, KF_RCU)
 BTF_KFUNCS_END(scx_kfunc_ids_unlocked)