[PATCH] Docs: SMP: add an SMP docbook chapter

[Randy Dunlap]

Add SMP primitives to the core-api documentation.

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
---
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Cc: linux-doc@xxxxxxxxxxxxxxx
Cc: Thomas Gleixner <tglx@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>

 Documentation/core-api/SMP.rst   |   11 +++++++++++
 Documentation/core-api/index.rst |    1 +
 2 files changed, 12 insertions(+)

--- linext-2026-0623.orig/Documentation/core-api/index.rst
+++ linext-2026-0623/Documentation/core-api/index.rst
@@ -81,6 +81,7 @@ Documentation/locking/index.rst for more
    padata
    ../RCU/index
    wrappers/memory-barriers.rst
+   SMP
 
 Low-level hardware management
 =============================
--- /dev/null
+++ linext-2026-0623/Documentation/core-api/SMP.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+==============
+SMP primitives
+==============
+
+.. kernel-doc:: include/linux/smp.h
+   :internal:
+
+.. kernel-doc:: kernel/smp.c
+   :export: