sched_ext: Document the ops compat strategy in compat.h/compat.bpf.h

Browse source

The comments around SCX_OPS_DEFINE() and SCX_OPS_OPEN() were vague about
how backward compatibility actually works. Expand them to describe the two
mechanisms: load-time BTF fix-up for additive changes, and multi-variant
struct_ops for incompatible ones.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Andrea Righi <arighi@nvidia.com>
Acked-by: Cheng-Yang Chou <yphbchou0911@gmail.com>

...

This commit is contained in:

Tejun Heo 2026-04-19 06:18:52 -10:00

parent 5425abc222

commit e613cc2361

2 changed files with 23 additions and 6 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

6

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

View file

23

tools/sched_ext/include/scx/compat.h

View file