Documentation/core-api/mm-api.rst

File Facts

System

Linux kernel

Corpus path

Documentation/core-api/mm-api.rst

Extension

.rst

Size

2795 bytes

Lines

135

Domain

Support Tooling And Documentation

Bucket

Documentation

Inferred role

Support Tooling And Documentation: documentation

Status

atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
• Touches user memory; correctness depends on fault-safe copying and privilege boundary handling.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

======================
Memory Management APIs
======================

User Space Memory Access
========================

.. kernel-doc:: arch/x86/include/asm/uaccess.h
   :internal:

.. kernel-doc:: arch/x86/lib/usercopy_32.c
   :export:

.. kernel-doc:: mm/gup.c
   :functions: get_user_pages_fast

.. _mm-api-gfp-flags:

Memory Allocation Controls
==========================

.. kernel-doc:: include/linux/gfp_types.h
   :doc: Page mobility and placement hints

.. kernel-doc:: include/linux/gfp_types.h
   :doc: Watermark modifiers

.. kernel-doc:: include/linux/gfp_types.h
   :doc: Reclaim modifiers

.. kernel-doc:: include/linux/gfp_types.h
   :doc: Useful GFP flag combinations

The Slab Cache
==============

.. kernel-doc:: include/linux/slab.h
   :internal:

.. kernel-doc:: mm/slub.c
   :export:

.. kernel-doc:: mm/slab_common.c
   :export:

.. kernel-doc:: mm/util.c
   :functions: kfree_const kvmalloc_node kvfree

Virtually Contiguous Mappings
=============================

.. kernel-doc:: mm/vmalloc.c
   :export:

File Mapping and Page Cache
===========================

Filemap
-------

.. kernel-doc:: mm/filemap.c
   :export:

Readahead
---------

.. kernel-doc:: mm/readahead.c
   :doc: Readahead Overview

.. kernel-doc:: mm/readahead.c

Annotation

• Atlas domain: Support Tooling And Documentation / Documentation.
• Implementation status: atlas-only.
• This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.