From: Tejun Heo <tj@kernel.org>
To: David Vernet <void@manifault.com>,
Andrea Righi <arighi@nvidia.com>,
Changwoo Min <changwoo@igalia.com>
Cc: sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH sched_ext/for-6.18-fixes] sched_ext: Mark scx_bpf_dsq_move_set_[slice|vtime]() with KF_RCU
Date: Mon, 6 Oct 2025 15:35:36 -1000 [thread overview]
Message-ID: <aORuaIXJftQDMBIA@slm.duckdns.org> (raw)
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: 4c30f5ce4f7a ("sched_ext: Implement scx_bpf_dispatch[_vtime]_from_dsq()")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Tejun Heo <tj@kernel.org>
---
kernel/sched/ext.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/kernel/sched/ext.c
+++ b/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)
next reply other threads:[~2025-10-07 1:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-07 1:35 Tejun Heo [this message]
2025-10-07 5:06 ` [PATCH sched_ext/for-6.18-fixes] sched_ext: Mark scx_bpf_dsq_move_set_[slice|vtime]() with KF_RCU Andrea Righi
2025-10-13 18:13 ` Tejun Heo
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