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sched_ext: Documentation: Fix ops table header reference

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The "Where to Look" and "ABI Instability" sections state that the ops
table is defined in include/linux/sched/ext.h. However, struct
sched_ext_ops is actually defined in kernel/sched/ext/internal.h, along
with the SCX_OPS_* flags; include/linux/sched/ext.h holds the core data
structures (struct sched_ext_entity, struct scx_dispatch_q, ...) and the
DSQ constants. Point the ops table references to the correct header.

Signed-off-by: Liang Luo <luoliang@kylinos.cn>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Liang Luo
2026-07-07 17:45:38 +08:00
committed by Tejun Heo
parent b7d9c359e5
commit 030db7005e
1 changed files with 5 additions and 3 deletions
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8
Documentation/scheduler/sched-ext.rst
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@@ -493,8 +493,9 @@ a freshly woken up task gets on a CPU.
Where to Look
=============
* ``include/linux/sched/ext.h`` defines the core data structures, ops table
and constants.
* ``include/linux/sched/ext.h`` defines the core data structures and
constants, while the ops table (``struct sched_ext_ops``) is defined in
``kernel/sched/ext/internal.h``.
* ``kernel/sched/ext/ext.c`` contains sched_ext core implementation and helpers.
The functions prefixed with ``scx_bpf_`` can be called from the BPF
@@ -555,7 +556,8 @@ ABI Instability
===============
The APIs provided by sched_ext to BPF schedulers programs have no stability
guarantees. This includes the ops table callbacks and constants defined in
guarantees. This includes the ops table callbacks defined in
``kernel/sched/ext/internal.h`` and the constants defined in
``include/linux/sched/ext.h``, as well as the ``scx_bpf_`` kfuncs defined in
``kernel/sched/ext/ext.c`` and ``kernel/sched/ext/idle.c``.