docs: admin-guide: move sysctl directory to it

The stuff under sysctl describes /sys interface from userspace
point of view. So, add it to the admin-guide and remove the
:orphan: from its index file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

20 files changed, 12 insertions, 13 deletions

diff --git a/CREDITS b/CREDITS
index beac0c81d081..401c5092bbf9 100644
--- a/CREDITS
+++ b/CREDITS
@@ -3120,7 +3120,7 @@ S: France
 N: Rik van Riel
 E: riel@redhat.com
 W: http://www.surriel.com/
-D: Linux-MM site, Documentation/sysctl/*, swap/mm readaround
+D: Linux-MM site, Documentation/admin-guide/sysctl/*, swap/mm readaround
 D: kswapd fixes, random kernel hacker, rmap VM,
 D: nl.linux.org administrator, minor scheduler additions
 S: Red Hat Boston
diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index 64e97a969857..5c6ae1ccee1a 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -16,6 +16,7 @@ etc.
    README
    kernel-parameters
    devices
+   sysctl/index
 
 This section describes CPU vulnerabilities and their mitigations.
 
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index e8e28cac32a3..b323f5d4366a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3144,7 +3144,7 @@
 	numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
 			'node', 'default' can be specified
 			This can be set from sysctl after boot.
-			See Documentation/sysctl/vm.rst for details.
+			See Documentation/admin-guide/sysctl/vm.rst for details.
 
 	ohci1394_dma=early	[HW] enable debugging via the ohci1394 driver.
 			See Documentation/debugging-via-ohci1394.txt for more
diff --git a/Documentation/admin-guide/mm/index.rst b/Documentation/admin-guide/mm/index.rst
index f5e92f33f96e..5f61a6c429e0 100644
--- a/Documentation/admin-guide/mm/index.rst
+++ b/Documentation/admin-guide/mm/index.rst
@@ -11,7 +11,7 @@ processes address space and many other cool things.
 Linux memory management is a complex system with many configurable
 settings. Most of these settings are available via ``/proc``
 filesystem and can be quired and adjusted using ``sysctl``. These APIs
-are described in Documentation/sysctl/vm.rst and in `man 5 proc`_.
+are described in Documentation/admin-guide/sysctl/vm.rst and in `man 5 proc`_.
 
 .. _man 5 proc: http://man7.org/linux/man-pages/man5/proc.5.html
 
diff --git a/Documentation/admin-guide/mm/ksm.rst b/Documentation/admin-guide/mm/ksm.rst
index 7b2b8767c0b4..874eb0c77d34 100644
--- a/Documentation/admin-guide/mm/ksm.rst
+++ b/Documentation/admin-guide/mm/ksm.rst
@@ -59,7 +59,7 @@ MADV_UNMERGEABLE is applied to a range which was never MADV_MERGEABLE.
 
 If a region of memory must be split into at least one new MADV_MERGEABLE
 or MADV_UNMERGEABLE region, the madvise may return ENOMEM if the process
-will exceed ``vm.max_map_count`` (see Documentation/sysctl/vm.rst).
+will exceed ``vm.max_map_count`` (see Documentation/admin-guide/sysctl/vm.rst).
 
 Like other madvise calls, they are intended for use on mapped areas of
 the user address space: they will report ENOMEM if the specified range
diff --git a/Documentation/sysctl/abi.rst b/Documentation/admin-guide/sysctl/abi.rst
index 599bcde7f0b7..599bcde7f0b7 100644
--- a/Documentation/sysctl/abi.rst
+++ b/Documentation/admin-guide/sysctl/abi.rst
diff --git a/Documentation/sysctl/fs.rst b/Documentation/admin-guide/sysctl/fs.rst
index 2a45119e3331..2a45119e3331 100644
--- a/Documentation/sysctl/fs.rst
+++ b/Documentation/admin-guide/sysctl/fs.rst
diff --git a/Documentation/sysctl/index.rst b/Documentation/admin-guide/sysctl/index.rst
index efbcde8c1c9c..03346f98c7b9 100644
--- a/Documentation/sysctl/index.rst
+++ b/Documentation/admin-guide/sysctl/index.rst
@@ -1,5 +1,3 @@
-:orphan:
-
 ===========================
 Documentation for /proc/sys
 ===========================
diff --git a/Documentation/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index a0c1d4ce403a..a0c1d4ce403a 100644
--- a/Documentation/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
diff --git a/Documentation/sysctl/net.rst b/Documentation/admin-guide/sysctl/net.rst
index a7d44e71019d..a7d44e71019d 100644
--- a/Documentation/sysctl/net.rst
+++ b/Documentation/admin-guide/sysctl/net.rst
diff --git a/Documentation/sysctl/sunrpc.rst b/Documentation/admin-guide/sysctl/sunrpc.rst
index 09780a682afd..09780a682afd 100644
--- a/Documentation/sysctl/sunrpc.rst
+++ b/Documentation/admin-guide/sysctl/sunrpc.rst
diff --git a/Documentation/sysctl/user.rst b/Documentation/admin-guide/sysctl/user.rst
index 650eaa03f15e..650eaa03f15e 100644
--- a/Documentation/sysctl/user.rst
+++ b/Documentation/admin-guide/sysctl/user.rst
diff --git a/Documentation/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 5aceb5cd5ce7..5aceb5cd5ce7 100644
--- a/Documentation/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst
index 1d8e748f909f..c6224d039bcb 100644
--- a/Documentation/core-api/printk-formats.rst
+++ b/Documentation/core-api/printk-formats.rst
@@ -119,7 +119,7 @@ Kernel Pointers
 
 For printing kernel pointers which should be hidden from unprivileged
 users. The behaviour of %pK depends on the kptr_restrict sysctl - see
-Documentation/sysctl/kernel.rst for more details.
+Documentation/admin-guide/sysctl/kernel.rst for more details.
 
 Unmodified Addresses
 --------------------
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index d750b6926899..fb4735fd73b0 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -1500,7 +1500,7 @@ review the kernel documentation in the directory /usr/src/linux/Documentation.
 This chapter  is  heavily  based  on the documentation included in the pre 2.2
 kernels, and became part of it in version 2.2.1 of the Linux kernel.
 
-Please see: Documentation/sysctl/ directory for descriptions of these
+Please see: Documentation/admin-guide/sysctl/ directory for descriptions of these
 entries.
 
 ------------------------------------------------------------------------------
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 5c3399cde1c4..df33674799b5 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -2287,7 +2287,7 @@ addr_scope_policy - INTEGER
 
 
 /proc/sys/net/core/*
-	Please see: Documentation/sysctl/net.rst for descriptions of these entries.
+	Please see: Documentation/admin-guide/sysctl/net.rst for descriptions of these entries.
 
 
 /proc/sys/net/unix/*
diff --git a/Documentation/vm/unevictable-lru.rst b/Documentation/vm/unevictable-lru.rst
index 8ba656f37cd8..109052215bce 100644
--- a/Documentation/vm/unevictable-lru.rst
+++ b/Documentation/vm/unevictable-lru.rst
@@ -439,7 +439,7 @@ Compacting MLOCKED Pages
 
 The unevictable LRU can be scanned for compactable regions and the default
 behavior is to do so.  /proc/sys/vm/compact_unevictable_allowed controls
-this behavior (see Documentation/sysctl/vm.rst).  Once scanning of the
+this behavior (see Documentation/admin-guide/sysctl/vm.rst).  Once scanning of the
 unevictable LRU is enabled, the work of compaction is mostly handled by
 the page migration code and the same work flow as described in MIGRATING
 MLOCKED PAGES will apply.
diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 4c3dcb718961..47d2651fd9dc 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -72,7 +72,7 @@ config PROC_SYSCTL
 	  interface is through /proc/sys.  If you say Y here a tree of
 	  modifiable sysctl entries will be generated beneath the
           /proc/sys directory. They are explained in the files
-	  in <file:Documentation/sysctl/>.  Note that enabling this
+	  in <file:Documentation/admin-guide/sysctl/>.  Note that enabling this
 	  option will enlarge the kernel by at least 8 KB.
 
 	  As it is generally a good thing, you should say Y here unless
diff --git a/kernel/panic.c b/kernel/panic.c
index e0ea74bbb41d..057540b6eee9 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -372,7 +372,7 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {
 /**
  * print_tainted - return a string to represent the kernel taint state.
  *
- * For individual taint flag meanings, see Documentation/sysctl/kernel.rst
+ * For individual taint flag meanings, see Documentation/admin-guide/sysctl/kernel.rst
  *
  * The string is overwritten by the next call to print_tainted(),
  * but is always NULL terminated.
diff --git a/mm/swap.c b/mm/swap.c
index 83a2a15f4836..ae300397dfda 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -8,7 +8,7 @@
 /*
  * This file contains the default values for the operation of the
  * Linux VM subsystem. Fine-tuning documentation can be found in
- * Documentation/sysctl/vm.rst.
+ * Documentation/admin-guide/sysctl/vm.rst.
  * Started 18.12.91
  * Swap aging added 23.2.95, Stephen Tweedie.
  * Buffermem limits added 12.3.98, Rik van Riel.