sched_ext: Add enq_flags to scx_bpf_dsq_move_to_local()

Browse source

scx_bpf_dsq_move_to_local() moves a task from a non-local DSQ to the
current CPU's local DSQ. This is an indirect way of dispatching to a local
DSQ and should support enq_flags like direct dispatches do - e.g.
SCX_ENQ_HEAD for head-of-queue insertion and SCX_ENQ_IMMED for immediate
execution guarantees.

Add scx_bpf_dsq_move_to_local___v2() with an enq_flags parameter. The
original becomes a v1 compat wrapper passing 0. The compat macro is updated
to a three-level chain: v2 (7.1+) -> v1 (current) -> scx_bpf_consume
(pre-rename). All in-tree BPF schedulers are updated to pass 0.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>

...

This commit is contained in:

Tejun Heo 2026-03-13 09:43:23 -10:00

parent da32a2986e

commit 860683763e

8 changed files with 38 additions and 18 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

kernel/sched/ext.c

View file

15

tools/sched_ext/include/scx/compat.bpf.h

View file

4

tools/sched_ext/scx_central.bpf.c

View file

2

tools/sched_ext/scx_cpu0.bpf.c

View file

6

tools/sched_ext/scx_flatcg.bpf.c

View file

4

tools/sched_ext/scx_qmap.bpf.c

View file

2

tools/sched_ext/scx_sdt.bpf.c

View file

2

tools/sched_ext/scx_simple.bpf.c

View file