docs: rename Documentation/vm to Documentation/mm

so it will be consistent with code mm directory and with
Documentation/admin-guide/mm and won't be confused with virtual machines.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Wu XiangCheng <bobwxc@email.cn>

Documentation/ABI/testing/sysfs-kernel-mm-ksm

@@ -41,7 +41,7 @@ Description:	Kernel Samepage Merging daemon sysfs interface
 		sleep_millisecs: how many milliseconds ksm should sleep between
 		scans.
 
-		See Documentation/vm/ksm.rst for more information.
+		See Documentation/mm/ksm.rst for more information.
 
 What:		/sys/kernel/mm/ksm/merge_across_nodes
 Date:		January 2013

Documentation/ABI/testing/sysfs-kernel-slab

@@ -37,7 +37,7 @@ Description:
 		The alloc_calls file is read-only and lists the kernel code
 		locations from which allocations for this cache were performed.
 		The alloc_calls file only contains information if debugging is
-		enabled for that cache (see Documentation/vm/slub.rst).
+		enabled for that cache (see Documentation/mm/slub.rst).
 
 What:		/sys/kernel/slab/<cache>/alloc_fastpath
 Date:		February 2008
@@ -219,7 +219,7 @@ Contact:	Pekka Enberg <penberg@cs.helsinki.fi>,
 Description:
 		The free_calls file is read-only and lists the locations of
 		object frees if slab debugging is enabled (see
-		Documentation/vm/slub.rst).
+		Documentation/mm/slub.rst).
 
 What:		/sys/kernel/slab/<cache>/free_fastpath
 Date:		February 2008

Documentation/admin-guide/kernel-parameters.txt

@@ -5442,7 +5442,7 @@
 			cache (risks via metadata attacks are mostly
 			unchanged). Debug options disable merging on their
 			own.
-			For more information see Documentation/vm/slub.rst.
+			For more information see Documentation/mm/slub.rst.
 
 	slab_max_order=	[MM, SLAB]
 			Determines the maximum allowed order for slabs.
@@ -5456,13 +5456,13 @@
 			slub_debug can create guard zones around objects and
 			may poison objects when not in use. Also tracks the
 			last alloc / free. For more information see
-			Documentation/vm/slub.rst.
+			Documentation/mm/slub.rst.
 
 	slub_max_order= [MM, SLUB]
 			Determines the maximum allowed order for slabs.
 			A high setting may cause OOMs due to memory
 			fragmentation. For more information see
-			Documentation/vm/slub.rst.
+			Documentation/mm/slub.rst.
 
 	slub_min_objects=	[MM, SLUB]
 			The minimum number of objects per slab. SLUB will
@@ -5471,12 +5471,12 @@
 			the number of objects indicated. The higher the number
 			of objects the smaller the overhead of tracking slabs
 			and the less frequently locks need to be acquired.
-			For more information see Documentation/vm/slub.rst.
+			For more information see Documentation/mm/slub.rst.
 
 	slub_min_order=	[MM, SLUB]
 			Determines the minimum page order for slabs. Must be
 			lower than slub_max_order.
-			For more information see Documentation/vm/slub.rst.
+			For more information see Documentation/mm/slub.rst.
 
 	slub_merge	[MM, SLUB]
 			Same with slab_merge.

Documentation/admin-guide/mm/concepts.rst

@@ -125,7 +125,7 @@ processor. Each bank is referred to as a `node` and for each node Linux
 constructs an independent memory management subsystem. A node has its
 own set of zones, lists of free and used pages and various statistics
 counters. You can find more details about NUMA in
-:ref:`Documentation/vm/numa.rst <numa>` and in
+:ref:`Documentation/mm/numa.rst <numa>` and in
 :ref:`Documentation/admin-guide/mm/numa_memory_policy.rst <numa_memory_policy>`.
 
 Page cache

Documentation/admin-guide/mm/damon/index.rst

@@ -4,7 +4,7 @@
 Monitoring Data Accesses
 ========================
 
-:doc:`DAMON </vm/damon/index>` allows light-weight data access monitoring.
+:doc:`DAMON </mm/damon/index>` allows light-weight data access monitoring.
 Using DAMON, users can analyze the memory access patterns of their systems and
 optimize those.
 

Documentation/admin-guide/mm/damon/reclaim.rst

@@ -268,4 +268,4 @@ granularity reclamation. ::
 
 .. [1] https://research.google/pubs/pub48551/
 .. [2] https://lwn.net/Articles/787611/
-.. [3] https://www.kernel.org/doc/html/latest/vm/free_page_reporting.html
+.. [3] https://www.kernel.org/doc/html/latest/mm/free_page_reporting.html

Documentation/admin-guide/mm/damon/usage.rst

@@ -30,11 +30,11 @@ DAMON provides below interfaces for different users.
   <sysfs_interface>`.  This will be removed after next LTS kernel is released,
   so users should move to the :ref:`sysfs interface <sysfs_interface>`.
 - *Kernel Space Programming Interface.*
-  :doc:`This </vm/damon/api>` is for kernel space programmers.  Using this,
+  :doc:`This </mm/damon/api>` is for kernel space programmers.  Using this,
   users can utilize every feature of DAMON most flexibly and efficiently by
   writing kernel space DAMON application programs for you.  You can even extend
   DAMON for various address spaces.  For detail, please refer to the interface
-  :doc:`document </vm/damon/api>`.
+  :doc:`document </mm/damon/api>`.
 
 .. _sysfs_interface:
 
@@ -185,7 +185,7 @@ controls the monitoring overhead, exist.  You can set and get the values by
 writing to and rading from the files.
 
 For more details about the intervals and monitoring regions range, please refer
-to the Design document (:doc:`/vm/damon/design`).
+to the Design document (:doc:`/mm/damon/design`).
 
 contexts/<N>/targets/
 ---------------------
@@ -402,7 +402,7 @@ Attributes
 Users can get and set the ``sampling interval``, ``aggregation interval``,
 ``update interval``, and min/max number of monitoring target regions by
 reading from and writing to the ``attrs`` file.  To know about the monitoring
-attributes in detail, please refer to the :doc:`/vm/damon/design`.  For
+attributes in detail, please refer to the :doc:`/mm/damon/design`.  For
 example, below commands set those values to 5 ms, 100 ms, 1,000 ms, 10 and
 1000, and then check it again::
 

Documentation/admin-guide/sysctl/vm.rst

@@ -760,7 +760,7 @@ and don't use much of it.
 
 The default value is 0.
 
-See Documentation/vm/overcommit-accounting.rst and
+See Documentation/mm/overcommit-accounting.rst and
 mm/util.c::__vm_enough_memory() for more information.
 
 

Documentation/core-api/index.rst

@@ -87,7 +87,7 @@ Memory management
 =================
 
 How to allocate and use memory in the kernel.  Note that there is a lot
-more memory-management documentation in Documentation/vm/index.rst.
+more memory-management documentation in Documentation/mm/index.rst.
 
 .. toctree::
    :maxdepth: 1

Documentation/filesystems/proc.rst

@@ -1109,7 +1109,7 @@ CommitLimit
               yield a CommitLimit of 7.3G.
 
               For more details, see the memory overcommit documentation
-              in vm/overcommit-accounting.
+              in mm/overcommit-accounting.
 Committed_AS
               The amount of memory presently allocated on the system.
               The committed memory is a sum of all of the memory which

Documentation/index.rst

@@ -128,7 +128,7 @@ needed).
    sound/index
    crypto/index
    filesystems/index
-   vm/index
+   mm/index
    bpf/index
    usb/index
    PCI/index

Documentation/mm/memory-model.rst

@@ -170,7 +170,7 @@ The users of `ZONE_DEVICE` are:
 * hmm: Extend `ZONE_DEVICE` with `->page_fault()` and `->page_free()`
   event callbacks to allow a device-driver to coordinate memory management
   events related to device-memory, typically GPU memory. See
-  Documentation/vm/hmm.rst.
+  Documentation/mm/hmm.rst.
 
 * p2pdma: Create `struct page` objects to allow peer devices in a
   PCI/-E topology to coordinate direct-DMA operations between themselves,

Documentation/translations/zh_CN/admin-guide/mm/damon/index.rst

@@ -13,7 +13,7 @@
 监测数据访问
 ============
 
-:doc:`DAMON </vm/damon/index>` 允许轻量级的数据访问监测。使用DAMON，
+:doc:`DAMON </mm/damon/index>` 允许轻量级的数据访问监测。使用DAMON，
 用户可以分析他们系统的内存访问模式，并优化它们。
 
 .. toctree::

Documentation/translations/zh_CN/admin-guide/mm/damon/reclaim.rst

@@ -229,4 +229,4 @@ DAMON_RECLAIM再次什么都不做，这样我们就可以退回到基于LRU列
 
 .. [1] https://research.google/pubs/pub48551/
 .. [2] https://lwn.net/Articles/787611/
-.. [3] https://www.kernel.org/doc/html/latest/vm/free_page_reporting.html
+.. [3] https://www.kernel.org/doc/html/latest/mm/free_page_reporting.html

Documentation/translations/zh_CN/admin-guide/mm/damon/usage.rst

@@ -33,9 +33,9 @@ DAMON 为不同的用户提供了下面这些接口。
   口相同。这将在下一个LTS内核发布后被移除，所以用户应该转移到
   :ref:`sysfs interface <sysfs_interface>`。
 - *内核空间编程接口。*
-  :doc:`这 </vm/damon/api>` 这是为内核空间程序员准备的。使用它，用户可以通过为你编写内
+  :doc:`这 </mm/damon/api>` 这是为内核空间程序员准备的。使用它，用户可以通过为你编写内
   核空间的DAMON应用程序，最灵活有效地利用DAMON的每一个功能。你甚至可以为各种地址空间扩展DAMON。
-  详细情况请参考接口 :doc:`文件 </vm/damon/api>`。
+  详细情况请参考接口 :doc:`文件 </mm/damon/api>`。
 
 sysfs接口
 =========
@@ -148,7 +148,7 @@ contexts/<N>/monitoring_attrs/
 在 ``nr_regions`` 目录下，有两个文件分别用于DAMON监测区域的下限和上限（``min`` 和 ``max`` ），
 这两个文件控制着监测的开销。你可以通过向这些文件的写入和读出来设置和获取这些值。
 
-关于间隔和监测区域范围的更多细节，请参考设计文件 (:doc:`/vm/damon/design`)。
+关于间隔和监测区域范围的更多细节，请参考设计文件 (:doc:`/mm/damon/design`)。
 
 contexts/<N>/targets/
 ---------------------
@@ -318,7 +318,7 @@ DAMON导出了八个文件, ``attrs``, ``target_ids``, ``init_regions``,
 ----
 
 用户可以通过读取和写入 ``attrs`` 文件获得和设置 ``采样间隔`` 、 ``聚集间隔`` 、 ``更新间隔``
-以及监测目标区域的最小/最大数量。要详细了解监测属性，请参考 `:doc:/vm/damon/design` 。例如，
+以及监测目标区域的最小/最大数量。要详细了解监测属性，请参考 `:doc:/mm/damon/design` 。例如，
 下面的命令将这些值设置为5ms、100ms、1000ms、10和1000，然后再次检查::
 
     # cd <debugfs>/damon

Documentation/translations/zh_CN/core-api/index.rst

@@ -101,7 +101,7 @@ Todolist:
 ========
 
 如何在内核中分配和使用内存。请注意，在
-:doc:`/vm/index` 中有更多的内存管理文档。
+:doc:`/mm/index` 中有更多的内存管理文档。
 
 .. toctree::
    :maxdepth: 1

Documentation/translations/zh_CN/index.rst

@@ -118,7 +118,7 @@ TODOList:
    sound/index
    filesystems/index
    scheduler/index
-   vm/index
+   mm/index
    peci/index
 
 TODOList:

Documentation/translations/zh_CN/mm/active_mm.rst

@@ -1,6 +1,6 @@
 .. include:: ../disclaimer-zh_CN.rst
 
-:Original: Documentation/vm/active_mm.rst
+:Original: Documentation/mm/active_mm.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/balance.rst

@@ -1,6 +1,6 @@
 .. include:: ../disclaimer-zh_CN.rst
 
-:Original: Documentation/vm/balance.rst
+:Original: Documentation/mm/balance.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/damon/api.rst

@@ -1,6 +1,6 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-:Original: Documentation/vm/damon/api.rst
+:Original: Documentation/mm/damon/api.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/damon/design.rst

@@ -1,6 +1,6 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-:Original: Documentation/vm/damon/design.rst
+:Original: Documentation/mm/damon/design.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/damon/faq.rst

@@ -1,6 +1,6 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-:Original: Documentation/vm/damon/faq.rst
+:Original: Documentation/mm/damon/faq.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/damon/index.rst

@@ -1,6 +1,6 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-:Original: Documentation/vm/damon/index.rst
+:Original: Documentation/mm/damon/index.rst
 
 :翻译:
 
@@ -14,7 +14,7 @@ DAMON:数据访问监视器
 ==========================
 
 DAMON是Linux内核的一个数据访问监控框架子系统。DAMON的核心机制使其成为
-（该核心机制详见(Documentation/translations/zh_CN/vm/damon/design.rst)）
+（该核心机制详见(Documentation/translations/zh_CN/mm/damon/design.rst)）
 
  - *准确度* （监测输出对DRAM级别的内存管理足够有用；但可能不适合CPU Cache级别），
  - *轻量级* （监控开销低到可以在线应用），以及
@@ -30,4 +30,3 @@ DAMON是Linux内核的一个数据访问监控框架子系统。DAMON的核心
    faq
    design
    api
-

Documentation/translations/zh_CN/mm/free_page_reporting.rst

@@ -1,6 +1,6 @@
 .. include:: ../disclaimer-zh_CN.rst
 
-:Original: Documentation/vm/_free_page_reporting.rst
+:Original: Documentation/mm/_free_page_reporting.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/frontswap.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/_free_page_reporting.rst
+:Original: Documentation/mm/_free_page_reporting.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/highmem.rst

@@ -1,6 +1,6 @@
 .. include:: ../disclaimer-zh_CN.rst
 
-:Original: Documentation/vm/highmem.rst
+:Original: Documentation/mm/highmem.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/hmm.rst

@@ -1,6 +1,6 @@
 .. include:: ../disclaimer-zh_CN.rst
 
-:Original: Documentation/vm/hmm.rst
+:Original: Documentation/mm/hmm.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/hugetlbfs_reserv.rst

@@ -1,6 +1,6 @@
 .. include:: ../disclaimer-zh_CN.rst
 
-:Original: Documentation/vm/hugetlbfs_reserv.rst
+:Original: Documentation/mm/hugetlbfs_reserv.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/hwpoison.rst

@@ -1,5 +1,5 @@
 
-:Original: Documentation/vm/hwpoison.rst
+:Original: Documentation/mm/hwpoison.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/index.rst

@@ -1,6 +1,6 @@
 .. include:: ../disclaimer-zh_CN.rst
 
-:Original: Documentation/vm/index.rst
+:Original: Documentation/mm/index.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/ksm.rst

@@ -1,6 +1,6 @@
 .. include:: ../disclaimer-zh_CN.rst
 
-:Original: Documentation/vm/ksm.rst
+:Original: Documentation/mm/ksm.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/memory-model.rst

@@ -1,6 +1,6 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-:Original: Documentation/vm/memory-model.rst
+:Original: Documentation/mm/memory-model.rst
 
 :翻译:
 
@@ -129,7 +129,7 @@ ZONE_DEVICE
 * pmem: 通过DAX映射将平台持久性内存作为直接I/O目标使用。
 
 * hmm: 用 `->page_fault()` 和 `->page_free()` 事件回调扩展 `ZONE_DEVICE` ，
-  以允许设备驱动程序协调与设备内存相关的内存管理事件，通常是GPU内存。参见/vm/hmm.rst。
+  以允许设备驱动程序协调与设备内存相关的内存管理事件，通常是GPU内存。参见Documentation/mm/hmm.rst。
 
 * p2pdma: 创建 `struct page` 对象，允许PCI/E拓扑结构中的peer设备协调它们之间的
   直接DMA操作，即绕过主机内存。

Documentation/translations/zh_CN/mm/mmu_notifier.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/mmu_notifier.rst
+:Original: Documentation/mm/mmu_notifier.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/numa.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/numa.rst
+:Original: Documentation/mm/numa.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/overcommit-accounting.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/overcommit-accounting.rst
+:Original: Documentation/mm/overcommit-accounting.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/page_frags.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/page_frag.rst
+:Original: Documentation/mm/page_frag.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/page_owner.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/page_owner.rst
+:Original: Documentation/mm/page_owner.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/page_table_check.rst

@@ -1,6 +1,6 @@
 .. SPDX-License-Identifier: GPL-2.0
 
-:Original: Documentation/vm/page_table_check.rst
+:Original: Documentation/mm/page_table_check.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/remap_file_pages.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/remap_file_pages.rst
+:Original: Documentation/mm/remap_file_pages.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/split_page_table_lock.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/split_page_table_lock.rst
+:Original: Documentation/mm/split_page_table_lock.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/z3fold.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/z3fold.rst
+:Original: Documentation/mm/z3fold.rst
 
 :翻译:
 

Documentation/translations/zh_CN/mm/zsmalloc.rst

@@ -1,4 +1,4 @@
-:Original: Documentation/vm/zs_malloc.rst
+:Original: Documentation/mm/zs_malloc.rst
 
 :翻译:
 

Documentation/translations/zh_TW/index.rst

@@ -128,7 +128,7 @@ TODOList:
 * security/index
 * sound/index
 * crypto/index
-* vm/index
+* mm/index
 * bpf/index
 * usb/index
 * PCI/index

Documentation/vm/.gitignore

@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-page-types
-slabinfo

MAINTAINERS

@@ -5526,7 +5526,7 @@ L:	linux-mm@kvack.org
 S:	Maintained
 F:	Documentation/ABI/testing/sysfs-kernel-mm-damon
 F:	Documentation/admin-guide/mm/damon/
-F:	Documentation/vm/damon/
+F:	Documentation/mm/damon/
 F:	include/linux/damon.h
 F:	include/trace/events/damon.h
 F:	mm/damon/
@@ -9037,7 +9037,7 @@ HMM - Heterogeneous Memory Management
 M:	Jérôme Glisse <jglisse@redhat.com>
 L:	linux-mm@kvack.org
 S:	Maintained
-F:	Documentation/vm/hmm.rst
+F:	Documentation/mm/hmm.rst
 F:	include/linux/hmm*
 F:	lib/test_hmm*
 F:	mm/hmm*
@@ -9135,8 +9135,8 @@ L:	linux-mm@kvack.org
 S:	Maintained
 F:	Documentation/ABI/testing/sysfs-kernel-mm-hugepages
 F:	Documentation/admin-guide/mm/hugetlbpage.rst
-F:	Documentation/vm/hugetlbfs_reserv.rst
+F:	Documentation/mm/hugetlbfs_reserv.rst
-F:	Documentation/vm/vmemmap_dedup.rst
+F:	Documentation/mm/vmemmap_dedup.rst
 F:	fs/hugetlbfs/
 F:	include/linux/hugetlb.h
 F:	mm/hugetlb.c
@@ -15072,7 +15072,7 @@ M:	Pasha Tatashin <pasha.tatashin@soleen.com>
 M:	Andrew Morton <akpm@linux-foundation.org>
 L:	linux-mm@kvack.org
 S:	Maintained
-F:	Documentation/vm/page_table_check.rst
+F:	Documentation/mm/page_table_check.rst
 F:	include/linux/page_table_check.h
 F:	mm/page_table_check.c
 
@@ -22158,7 +22158,7 @@ M:	Nitin Gupta <ngupta@vflare.org>
 R:	Sergey Senozhatsky <senozhatsky@chromium.org>
 L:	linux-mm@kvack.org
 S:	Maintained
-F:	Documentation/vm/zsmalloc.rst
+F:	Documentation/mm/zsmalloc.rst
 F:	include/linux/zsmalloc.h
 F:	mm/zsmalloc.c
 

arch/loongarch/Kconfig

@@ -410,7 +410,7 @@ config ARCH_SPARSEMEM_ENABLE
 	  Say Y to support efficient handling of sparse physical memory,
 	  for architectures which are either NUMA (Non-Uniform Memory Access)
 	  or have huge holes in the physical address space for other reasons.
-	  See <file:Documentation/vm/numa.rst> for more.
+	  See <file:Documentation/mm/numa.rst> for more.
 
 config ARCH_ENABLE_THP_MIGRATION
 	def_bool y

arch/powerpc/include/asm/book3s/64/pgtable.h

@@ -1273,7 +1273,7 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, unsigned long addr,
  * should return true.
  * We should not call this on a hugetlb entry. We should check for HugeTLB
  * entry using vma->vm_flags
- * The page table walk rule is explained in Documentation/vm/transhuge.rst
+ * The page table walk rule is explained in Documentation/mm/transhuge.rst
  */
 static inline int pmd_trans_huge(pmd_t pmd)
 {

include/linux/hmm.h

@@ -4,7 +4,7 @@
  *
  * Authors: Jérôme Glisse <jglisse@redhat.com>
  *
- * See Documentation/vm/hmm.rst for reasons and overview of what HMM is.
+ * See Documentation/mm/hmm.rst for reasons and overview of what HMM is.
  */
 #ifndef LINUX_HMM_H
 #define LINUX_HMM_H
@@ -100,7 +100,7 @@ struct hmm_range {
 };
 
 /*
- * Please see Documentation/vm/hmm.rst for how to use the range API.
+ * Please see Documentation/mm/hmm.rst for how to use the range API.
  */
 int hmm_range_fault(struct hmm_range *range);
 

include/linux/memremap.h

@@ -39,7 +39,7 @@ struct vmem_altmap {
  * must be treated as an opaque object, rather than a "normal" struct page.
  *
  * A more complete discussion of unaddressable memory may be found in
- * include/linux/hmm.h and Documentation/vm/hmm.rst.
+ * include/linux/hmm.h and Documentation/mm/hmm.rst.
  *
  * MEMORY_DEVICE_FS_DAX:
  * Host memory that has similar access semantics as System RAM i.e. DMA

include/linux/mmu_notifier.h

@@ -198,7 +198,7 @@ struct mmu_notifier_ops {
 	 * invalidate_range_start()/end() notifiers, as
 	 * invalidate_range() already catches the points in time when an
 	 * external TLB range needs to be flushed. For more in depth
-	 * discussion on this see Documentation/vm/mmu_notifier.rst
+	 * discussion on this see Documentation/mm/mmu_notifier.rst
 	 *
 	 * Note that this function might be called with just a sub-range
 	 * of what was passed to invalidate_range_start()/end(), if

include/linux/sched/mm.h

@@ -29,7 +29,7 @@ extern struct mm_struct *mm_alloc(void);
  *
  * Use mmdrop() to release the reference acquired by mmgrab().
  *
- * See also <Documentation/vm/active_mm.rst> for an in-depth explanation
+ * See also <Documentation/mm/active_mm.rst> for an in-depth explanation
  * of &mm_struct.mm_count vs &mm_struct.mm_users.
  */
 static inline void mmgrab(struct mm_struct *mm)
@@ -92,7 +92,7 @@ static inline void mmdrop_sched(struct mm_struct *mm)
  *
  * Use mmput() to release the reference acquired by mmget().
  *
- * See also <Documentation/vm/active_mm.rst> for an in-depth explanation
+ * See also <Documentation/mm/active_mm.rst> for an in-depth explanation
  * of &mm_struct.mm_count vs &mm_struct.mm_users.
  */
 static inline void mmget(struct mm_struct *mm)

include/linux/swap.h

@@ -74,7 +74,7 @@ static inline int current_is_kswapd(void)
 
 /*
  * Unaddressable device memory support. See include/linux/hmm.h and
- * Documentation/vm/hmm.rst. Short description is we need struct pages for
+ * Documentation/mm/hmm.rst. Short description is we need struct pages for
  * device memory that is unaddressable (inaccessible) by CPU, so that we can
  * migrate part of a process memory to device memory.
  *

mm/Kconfig

@@ -663,7 +663,7 @@ config KSM
 	  the many instances by a single page with that content, so
 	  saving memory until one or another app needs to modify the content.
 	  Recommended for use with KVM, or with other duplicative applications.
-	  See Documentation/vm/ksm.rst for more information: KSM is inactive
+	  See Documentation/mm/ksm.rst for more information: KSM is inactive
 	  until a program has madvised that an area is MADV_MERGEABLE, and
 	  root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
 

mm/debug_vm_pgtable.c

@@ -35,7 +35,7 @@
 #include <asm/tlbflush.h>
 
 /*
- * Please refer Documentation/vm/arch_pgtable_helpers.rst for the semantics
+ * Please refer Documentation/mm/arch_pgtable_helpers.rst for the semantics
  * expectations that are being validated here. All future changes in here
  * or the documentation need to be in sync.
  */

mm/frontswap.c

@@ -4,7 +4,7 @@
  *
  * This code provides the generic "frontend" layer to call a matching
  * "backend" driver implementation of frontswap.  See
- * Documentation/vm/frontswap.rst for more information.
+ * Documentation/mm/frontswap.rst for more information.
  *
  * Copyright (C) 2009-2012 Oracle Corp.  All rights reserved.
  * Author: Dan Magenheimer

mm/huge_memory.c

@@ -1937,7 +1937,7 @@ static void __split_huge_zero_page_pmd(struct vm_area_struct *vma,
 	 * replacing a zero pmd write protected page with a zero pte write
 	 * protected page.
 	 *
-	 * See Documentation/vm/mmu_notifier.rst
+	 * See Documentation/mm/mmu_notifier.rst
 	 */
 	pmdp_huge_clear_flush(vma, haddr, pmd);
 

mm/hugetlb.c

@@ -4875,7 +4875,7 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
 				 * table protection not changing it to point
 				 * to a new page.
 				 *
-				 * See Documentation/vm/mmu_notifier.rst
+				 * See Documentation/mm/mmu_notifier.rst
 				 */
 				huge_ptep_set_wrprotect(src, addr, src_pte);
 				entry = huge_pte_wrprotect(entry);
@@ -6403,7 +6403,7 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
 	 * No need to call mmu_notifier_invalidate_range() we are downgrading
 	 * page table protection not changing it to point to a new page.
 	 *
-	 * See Documentation/vm/mmu_notifier.rst
+	 * See Documentation/mm/mmu_notifier.rst
 	 */
 	i_mmap_unlock_write(vma->vm_file->f_mapping);
 	mmu_notifier_invalidate_range_end(&range);
@@ -7102,7 +7102,7 @@ void hugetlb_unshare_all_pmds(struct vm_area_struct *vma)
 	i_mmap_unlock_write(vma->vm_file->f_mapping);
 	/*
 	 * No need to call mmu_notifier_invalidate_range(), see
-	 * Documentation/vm/mmu_notifier.rst.
+	 * Documentation/mm/mmu_notifier.rst.
 	 */
 	mmu_notifier_invalidate_range_end(&range);
 }