[PATCH 2/2] docs/mm: remove useless markup

From: Mike Rapoport
Date: Sun Jan 29 2023 - 02:50:45 EST

From: "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx>

It is enough to use a file name to cross-reference another rst document.

Jon says:
The right things will happen in the HTML output, readers of the
plain-text will know immediately where to go, and we don't have to add
the label clutter.

Drop reference markup and unnecessary labels and use plain file names.

Signed-off-by: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
---
Documentation/mm/active_mm.rst | 2 --
Documentation/mm/arch_pgtable_helpers.rst | 2 --
Documentation/mm/balance.rst | 2 --
Documentation/mm/free_page_reporting.rst | 2 --
Documentation/mm/frontswap.rst | 2 --
Documentation/mm/highmem.rst | 2 --
Documentation/mm/hmm.rst | 4 +---
Documentation/mm/hugetlbfs_reserv.rst | 4 +---
Documentation/mm/hwpoison.rst | 2 --
Documentation/mm/ksm.rst | 4 +---
Documentation/mm/memory-model.rst | 2 --
Documentation/mm/mmu_notifier.rst | 2 --
Documentation/mm/numa.rst | 4 +---
Documentation/mm/page_frags.rst | 2 --
Documentation/mm/page_migration.rst | 6 ++----
Documentation/mm/page_owner.rst | 2 --
Documentation/mm/page_table_check.rst | 2 --
Documentation/mm/remap_file_pages.rst | 2 --
Documentation/mm/slub.rst | 2 --
Documentation/mm/split_page_table_lock.rst | 2 --
Documentation/mm/transhuge.rst | 2 --
Documentation/mm/unevictable-lru.rst | 2 --
Documentation/mm/z3fold.rst | 2 --
Documentation/mm/zsmalloc.rst | 2 --
24 files changed, 6 insertions(+), 54 deletions(-)

diff --git a/Documentation/mm/active_mm.rst b/Documentation/mm/active_mm.rst
index 6f8269c284ed..45d89f8fb3a8 100644
--- a/Documentation/mm/active_mm.rst
+++ b/Documentation/mm/active_mm.rst
@@ -1,5 +1,3 @@
-.. _active_mm:
-
=========
Active MM
=========
diff --git a/Documentation/mm/arch_pgtable_helpers.rst b/Documentation/mm/arch_pgtable_helpers.rst
index fd2a19df884e..30d9a09f01f4 100644
--- a/Documentation/mm/arch_pgtable_helpers.rst
+++ b/Documentation/mm/arch_pgtable_helpers.rst
@@ -1,7 +1,5 @@
.. SPDX-License-Identifier: GPL-2.0

-.. _arch_page_table_helpers:
-
===============================
Architecture Page Table Helpers
===============================
diff --git a/Documentation/mm/balance.rst b/Documentation/mm/balance.rst
index 6a1fadf3e173..6cd0127154ac 100644
--- a/Documentation/mm/balance.rst
+++ b/Documentation/mm/balance.rst
@@ -1,5 +1,3 @@
-.. _balance:
-
================
Memory Balancing
================
diff --git a/Documentation/mm/free_page_reporting.rst b/Documentation/mm/free_page_reporting.rst
index 8c05e62d8b2b..1468f71c261f 100644
--- a/Documentation/mm/free_page_reporting.rst
+++ b/Documentation/mm/free_page_reporting.rst
@@ -1,5 +1,3 @@
-.. _free_page_reporting:
-
=====================
Free Page Reporting
=====================
diff --git a/Documentation/mm/frontswap.rst b/Documentation/mm/frontswap.rst
index feecc5e24477..c892412988af 100644
--- a/Documentation/mm/frontswap.rst
+++ b/Documentation/mm/frontswap.rst
@@ -1,5 +1,3 @@
-.. _frontswap:
-
=========
Frontswap
=========
diff --git a/Documentation/mm/highmem.rst b/Documentation/mm/highmem.rst
index 0f731d9196b0..bb3f90e195fa 100644
--- a/Documentation/mm/highmem.rst
+++ b/Documentation/mm/highmem.rst
@@ -1,5 +1,3 @@
-.. _highmem:
-
====================
High Memory Handling
====================
diff --git a/Documentation/mm/hmm.rst b/Documentation/mm/hmm.rst
index f2a59ed82ed3..9aa512c3a12c 100644
--- a/Documentation/mm/hmm.rst
+++ b/Documentation/mm/hmm.rst
@@ -1,5 +1,3 @@
-.. _hmm:
-
=====================================
Heterogeneous Memory Management (HMM)
=====================================
@@ -304,7 +302,7 @@ devm_memunmap_pages(), and devm_release_mem_region() when the resources can
be tied to a ``struct device``.

The overall migration steps are similar to migrating NUMA pages within system
-memory (see :ref:`Page migration <page_migration>`) but the steps are split
+memory (see Documentation/mm/page_migration.rst) but the steps are split
between device driver specific code and shared common code:

1. ``mmap_read_lock()``
diff --git a/Documentation/mm/hugetlbfs_reserv.rst b/Documentation/mm/hugetlbfs_reserv.rst
index f143954e0d05..05a44760da32 100644
--- a/Documentation/mm/hugetlbfs_reserv.rst
+++ b/Documentation/mm/hugetlbfs_reserv.rst
@@ -1,5 +1,3 @@
-.. _hugetlbfs_reserve:
-
=====================
Hugetlbfs Reservation
=====================
@@ -7,7 +5,7 @@ Hugetlbfs Reservation
Overview
========

-Huge pages as described at :ref:`hugetlbpage` are typically
+Huge pages as described at Documentation/mm/hugetlbpage.rst are typically
preallocated for application use. These huge pages are instantiated in a
task's address space at page fault time if the VMA indicates huge pages are
to be used. If no huge page exists at page fault time, the task is sent
diff --git a/Documentation/mm/hwpoison.rst b/Documentation/mm/hwpoison.rst
index b9d5253c1305..ba48a441feed 100644
--- a/Documentation/mm/hwpoison.rst
+++ b/Documentation/mm/hwpoison.rst
@@ -1,5 +1,3 @@
-.. hwpoison:
-
========
hwpoison
========
diff --git a/Documentation/mm/ksm.rst b/Documentation/mm/ksm.rst
index f83cfbc12f4c..2806e3e4a10e 100644
--- a/Documentation/mm/ksm.rst
+++ b/Documentation/mm/ksm.rst
@@ -1,5 +1,3 @@
-.. _ksm:
-
=======================
Kernel Samepage Merging
=======================
@@ -8,7 +6,7 @@ KSM is a memory-saving de-duplication feature, enabled by CONFIG_KSM=y,
added to the Linux kernel in 2.6.32. See ``mm/ksm.c`` for its implementation,
and http://lwn.net/Articles/306704/ and https://lwn.net/Articles/330589/

-The userspace interface of KSM is described in :ref:`Documentation/admin-guide/mm/ksm.rst <admin_guide_ksm>`
+The userspace interface of KSM is described in Documentation/admin-guide/mm/ksm.rst

Design
======
diff --git a/Documentation/mm/memory-model.rst b/Documentation/mm/memory-model.rst
index 3779e562dc76..5f3eafbbc520 100644
--- a/Documentation/mm/memory-model.rst
+++ b/Documentation/mm/memory-model.rst
@@ -1,7 +1,5 @@
.. SPDX-License-Identifier: GPL-2.0

-.. _physical_memory_model:
-
=====================
Physical Memory Model
=====================
diff --git a/Documentation/mm/mmu_notifier.rst b/Documentation/mm/mmu_notifier.rst
index df5d7777fc6b..c687bea4922f 100644
--- a/Documentation/mm/mmu_notifier.rst
+++ b/Documentation/mm/mmu_notifier.rst
@@ -1,5 +1,3 @@
-.. _mmu_notifier:
-
When do you need to notify inside page table lock ?
===================================================

diff --git a/Documentation/mm/numa.rst b/Documentation/mm/numa.rst
index 99fdeca917ca..04648d26ffd1 100644
--- a/Documentation/mm/numa.rst
+++ b/Documentation/mm/numa.rst
@@ -1,5 +1,3 @@
-.. _numa:
-
Started Nov 1999 by Kanoj Sarcar <kanoj@xxxxxxx>

=============
@@ -110,7 +108,7 @@ to improve NUMA locality using various CPU affinity command line interfaces,
such as taskset(1) and numactl(1), and program interfaces such as
sched_setaffinity(2). Further, one can modify the kernel's default local
allocation behavior using Linux NUMA memory policy. [see
-:ref:`Documentation/admin-guide/mm/numa_memory_policy.rst <numa_memory_policy>`].
+Documentation/admin-guide/mm/numa_memory_policy.rst].

System administrators can restrict the CPUs and nodes' memories that a non-
privileged user can specify in the scheduling or NUMA commands and functions
diff --git a/Documentation/mm/page_frags.rst b/Documentation/mm/page_frags.rst
index 7d6f9385d129..a81617e688a8 100644
--- a/Documentation/mm/page_frags.rst
+++ b/Documentation/mm/page_frags.rst
@@ -1,5 +1,3 @@
-.. _page_frags:
-
==============
Page fragments
==============
diff --git a/Documentation/mm/page_migration.rst b/Documentation/mm/page_migration.rst
index 11493bad7112..313dce18893e 100644
--- a/Documentation/mm/page_migration.rst
+++ b/Documentation/mm/page_migration.rst
@@ -1,5 +1,3 @@
-.. _page_migration:
-
==============
Page migration
==============
@@ -9,8 +7,8 @@ nodes in a NUMA system while the process is running. This means that the
virtual addresses that the process sees do not change. However, the
system rearranges the physical location of those pages.

-Also see :ref:`Heterogeneous Memory Management (HMM) <hmm>`
-for migrating pages to or from device private memory.
+Also see Documentation/mm/hmm.rst for migrating pages to or from device
+private memory.

The main intent of page migration is to reduce the latency of memory accesses
by moving pages near to the processor where the process accessing that memory
diff --git a/Documentation/mm/page_owner.rst b/Documentation/mm/page_owner.rst
index 127514955a5e..fc8b5f2ef173 100644
--- a/Documentation/mm/page_owner.rst
+++ b/Documentation/mm/page_owner.rst
@@ -1,5 +1,3 @@
-.. _page_owner:
-
==================================================
page owner: Tracking about who allocated each page
==================================================
diff --git a/Documentation/mm/page_table_check.rst b/Documentation/mm/page_table_check.rst
index 1a09472f10a3..cfd8f4117cf3 100644
--- a/Documentation/mm/page_table_check.rst
+++ b/Documentation/mm/page_table_check.rst
@@ -1,7 +1,5 @@
.. SPDX-License-Identifier: GPL-2.0

-.. _page_table_check:
-
================
Page Table Check
================
diff --git a/Documentation/mm/remap_file_pages.rst b/Documentation/mm/remap_file_pages.rst
index 7bef6718e3a9..297091ce257c 100644
--- a/Documentation/mm/remap_file_pages.rst
+++ b/Documentation/mm/remap_file_pages.rst
@@ -1,5 +1,3 @@
-.. _remap_file_pages:
-
==============================
remap_file_pages() system call
==============================
diff --git a/Documentation/mm/slub.rst b/Documentation/mm/slub.rst
index 7f652216dabe..fa01cdfd7d3a 100644
--- a/Documentation/mm/slub.rst
+++ b/Documentation/mm/slub.rst
@@ -1,5 +1,3 @@
-.. _slub:
-
==========================
Short users guide for SLUB
==========================
diff --git a/Documentation/mm/split_page_table_lock.rst b/Documentation/mm/split_page_table_lock.rst
index c08919662704..50ee0dfc95be 100644
--- a/Documentation/mm/split_page_table_lock.rst
+++ b/Documentation/mm/split_page_table_lock.rst
@@ -1,5 +1,3 @@
-.. _split_page_table_lock:
-
=====================
Split page table lock
=====================
diff --git a/Documentation/mm/transhuge.rst b/Documentation/mm/transhuge.rst
index ec3dc5b04226..9d924b651c61 100644
--- a/Documentation/mm/transhuge.rst
+++ b/Documentation/mm/transhuge.rst
@@ -1,5 +1,3 @@
-.. _transhuge:
-
============================
Transparent Hugepage Support
============================
diff --git a/Documentation/mm/unevictable-lru.rst b/Documentation/mm/unevictable-lru.rst
index 4a0e158aa9ce..b5dc98cd1ba8 100644
--- a/Documentation/mm/unevictable-lru.rst
+++ b/Documentation/mm/unevictable-lru.rst
@@ -1,5 +1,3 @@
-.. _unevictable_lru:
-
==============================
Unevictable LRU Infrastructure
==============================
diff --git a/Documentation/mm/z3fold.rst b/Documentation/mm/z3fold.rst
index 224e3c61d686..25b5935d06c7 100644
--- a/Documentation/mm/z3fold.rst
+++ b/Documentation/mm/z3fold.rst
@@ -1,5 +1,3 @@
-.. _z3fold:
-
======
z3fold
======
diff --git a/Documentation/mm/zsmalloc.rst b/Documentation/mm/zsmalloc.rst
index 6e79893d6132..24616a7c115a 100644
--- a/Documentation/mm/zsmalloc.rst
+++ b/Documentation/mm/zsmalloc.rst
@@ -1,5 +1,3 @@
-.. _zsmalloc:
-
========
zsmalloc
========
--
2.35.1