Merge tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull rst conversion of docs from Mauro Carvalho Chehab:
 "As agreed with Jon, I'm sending this big series directly to you, c/c
  him, as this series required a special care, in order to avoid
  conflicts with other trees"

* tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (77 commits)
  docs: kbuild: fix build with pdf and fix some minor issues
  docs: block: fix pdf output
  docs: arm: fix a breakage with pdf output
  docs: don't use nested tables
  docs: gpio: add sysfs interface to the admin-guide
  docs: locking: add it to the main index
  docs: add some directories to the main documentation index
  docs: add SPDX tags to new index files
  docs: add a memory-devices subdir to driver-api
  docs: phy: place documentation under driver-api
  docs: serial: move it to the driver-api
  docs: driver-api: add remaining converted dirs to it
  docs: driver-api: add xilinx driver API documentation
  docs: driver-api: add a series of orphaned documents
  docs: admin-guide: add a series of orphaned documents
  docs: cgroup-v1: add it to the admin-guide book
  docs: aoe: add it to the driver-api book
  docs: add some documentation dirs to the driver-api book
  docs: driver-model: move it to the driver-api book
  docs: lp855x-driver.rst: add it to the driver-api book
  ...

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

Documentation/ABI/obsolete/sysfs-gpio

@@ -11,7 +11,7 @@ Description:
   Kernel code may export it for complete or partial access.
 
   GPIOs are identified as they are inside the kernel, using integers in
-  the range 0..INT_MAX.  See Documentation/gpio for more information.
+  the range 0..INT_MAX.  See Documentation/admin-guide/gpio for more information.
 
     /sys/class/gpio
 	/export ... asks the kernel to export a GPIO to userspace

Documentation/ABI/removed/sysfs-class-rfkill

 rfkill - radio frequency (RF) connector kill switch support
 
-For details to this subsystem look at Documentation/rfkill.txt.
+For details to this subsystem look at Documentation/driver-api/rfkill.rst.
 
 What:		/sys/class/rfkill/rfkill[0-9]+/claim
 Date:		09-Jul-2007

Documentation/ABI/stable/sysfs-class-rfkill

 rfkill - radio frequency (RF) connector kill switch support
 
-For details to this subsystem look at Documentation/rfkill.txt.
+For details to this subsystem look at Documentation/driver-api/rfkill.rst.
 
 For the deprecated /sys/class/rfkill/*/claim knobs of this interface look in
 Documentation/ABI/removed/sysfs-class-rfkill.

Documentation/ABI/stable/sysfs-devices-node

@@ -61,7 +61,7 @@ Date:		October 2002
 Contact:	Linux Memory Management list <linux-mm@kvack.org>
 Description:
 		The node's hit/miss statistics, in units of pages.
-		See Documentation/numastat.txt
+		See Documentation/admin-guide/numastat.rst
 
 What:		/sys/devices/system/node/nodeX/distance
 Date:		October 2002

Documentation/ABI/testing/procfs-diskstats

@@ -29,4 +29,4 @@ Description:
 		17 - sectors discarded
 		18 - time spent discarding
 
-		For more details refer to Documentation/iostats.txt
+		For more details refer to Documentation/admin-guide/iostats.rst

Documentation/ABI/testing/sysfs-block

@@ -15,7 +15,7 @@ Description:
 		 9 - I/Os currently in progress
 		10 - time spent doing I/Os (ms)
 		11 - weighted time spent doing I/Os (ms)
-		For more details refer Documentation/iostats.txt
+		For more details refer Documentation/admin-guide/iostats.rst
 
 
 What:		/sys/block/<disk>/<part>/stat

Documentation/ABI/testing/sysfs-block-device

@@ -45,7 +45,7 @@ Description:
 		- Values below -2 are rejected with -EINVAL
 
 		For more information, see
-		Documentation/laptops/disk-shock-protection.txt
+		Documentation/admin-guide/laptops/disk-shock-protection.rst
 
 
 What:		/sys/block/*/device/ncq_prio_enable

Documentation/ABI/testing/sysfs-class-switchtec

 switchtec - Microsemi Switchtec PCI Switch Management Endpoint
 
-For details on this subsystem look at Documentation/switchtec.txt.
+For details on this subsystem look at Documentation/driver-api/switchtec.rst.
 
 What: 		/sys/class/switchtec
 Date:		05-Jan-2017

Documentation/ABI/testing/sysfs-devices-system-cpu

@@ -34,7 +34,7 @@ Description:	CPU topology files that describe kernel limits related to
 		present: cpus that have been identified as being present in
 		the system.
 
-		See Documentation/cputopology.txt for more information.
+		See Documentation/admin-guide/cputopology.rst for more information.
 
 
 What:		/sys/devices/system/cpu/probe
@@ -103,7 +103,7 @@ Description:	CPU topology files that describe a logical CPU's relationship
 		thread_siblings_list: human-readable list of cpu#'s hardware
 		threads within the same core as cpu#
 
-		See Documentation/cputopology.txt for more information.
+		See Documentation/admin-guide/cputopology.rst for more information.
 
 
 What:		/sys/devices/system/cpu/cpuidle/current_driver

Documentation/ABI/testing/sysfs-platform-asus-laptop

@@ -31,7 +31,7 @@ Description:
 		To control the LED display, use the following :
 		    echo 0x0T000DDD > /sys/devices/platform/asus_laptop/
 		where T control the 3 letters display, and DDD the 3 digits display.
-		The DDD table can be found in Documentation/laptops/asus-laptop.txt
+		The DDD table can be found in Documentation/admin-guide/laptops/asus-laptop.rst
 
 What:		/sys/devices/platform/asus_laptop/bluetooth
 Date:		January 2007

Documentation/DMA-API-HOWTO.txt

@@ -212,7 +212,7 @@ The standard 64-bit addressing device would do something like this::
 
 If the device only supports 32-bit addressing for descriptors in the
 coherent allocations, but supports full 64-bits for streaming mappings
-it would look like this:
+it would look like this::
 
 	if (dma_set_mask(dev, DMA_BIT_MASK(64))) {
 		dev_warn(dev, "mydev: No suitable DMA available\n");

Documentation/accounting/cgroupstats.txt → Documentation/accounting/cgroupstats.rst

+==================
+Control Groupstats
+==================
+
 Control Groupstats is inspired by the discussion at
 http://lkml.org/lkml/2007/4/11/187 and implements per cgroup statistics as
 suggested by Andrew Morton in http://lkml.org/lkml/2007/4/11/263.
@@ -19,9 +23,9 @@ about tasks blocked on I/O. If CONFIG_TASK_DELAY_ACCT is disabled, this
 information will not be available.
 
 To extract cgroup statistics a utility very similar to getdelays.c
-has been developed, the sample output of the utility is shown below
+has been developed, the sample output of the utility is shown below::
 
-~/balbir/cgroupstats # ./getdelays  -C "/sys/fs/cgroup/a"
-sleeping 1, blocked 0, running 1, stopped 0, uninterruptible 0
-~/balbir/cgroupstats # ./getdelays  -C "/sys/fs/cgroup"
-sleeping 155, blocked 0, running 1, stopped 0, uninterruptible 2
+  ~/balbir/cgroupstats # ./getdelays  -C "/sys/fs/cgroup/a"
+  sleeping 1, blocked 0, running 1, stopped 0, uninterruptible 0
+  ~/balbir/cgroupstats # ./getdelays  -C "/sys/fs/cgroup"
+  sleeping 155, blocked 0, running 1, stopped 0, uninterruptible 2

Documentation/accounting/delay-accounting.txt → Documentation/accounting/delay-accounting.rst

+================
 Delay accounting
-----------------
+================
 
 Tasks encounter delays in execution when they wait
 for some kernel resource to become available e.g. a
@@ -39,7 +40,9 @@ in detail in a separate document in this directory. Taskstats returns a
 generic data structure to userspace corresponding to per-pid and per-tgid
 statistics. The delay accounting functionality populates specific fields of
 this structure. See
+
      include/linux/taskstats.h
+
 for a description of the fields pertaining to delay accounting.
 It will generally be in the form of counters returning the cumulative
 delay seen for cpu, sync block I/O, swapin, memory reclaim etc.
@@ -61,13 +64,16 @@ also serves as an example of using the taskstats interface.
 Usage
 -----
 
-Compile the kernel with
+Compile the kernel with::
+
 	CONFIG_TASK_DELAY_ACCT=y
 	CONFIG_TASKSTATS=y
 
 Delay accounting is enabled by default at boot up.
-To disable, add
+To disable, add::
+
    nodelayacct
+
 to the kernel boot options. The rest of the instructions
 below assume this has not been done.
 
@@ -78,40 +84,43 @@ The utility also allows a given command to be
 executed and the corresponding delays to be
 seen.
 
-General format of the getdelays command
+General format of the getdelays command::
 
-getdelays [-t tgid] [-p pid] [-c cmd...]
+	getdelays [-t tgid] [-p pid] [-c cmd...]
 
 
-Get delays, since system boot, for pid 10
-# ./getdelays -p 10
-(output similar to next case)
+Get delays, since system boot, for pid 10::
 
-Get sum of delays, since system boot, for all pids with tgid 5
-# ./getdelays -t 5
+	# ./getdelays -p 10
+	(output similar to next case)
 
+Get sum of delays, since system boot, for all pids with tgid 5::
 
-CPU	count	real total	virtual total	delay total
-	7876	92005750	100000000	24001500
-IO	count	delay total
-	0	0
-SWAP	count	delay total
-	0	0
-RECLAIM	count	delay total
-	0	0
+	# ./getdelays -t 5
+
+
+	CPU	count	real total	virtual total	delay total
+		7876	92005750	100000000	24001500
+	IO	count	delay total
+		0	0
+	SWAP	count	delay total
+		0	0
+	RECLAIM	count	delay total
+		0	0
+
+Get delays seen in executing a given simple command::
 
-Get delays seen in executing a given simple command
-# ./getdelays -c ls /
+  # ./getdelays -c ls /
 
-bin   data1  data3  data5  dev  home  media  opt   root  srv        sys  usr
-boot  data2  data4  data6  etc  lib   mnt    proc  sbin  subdomain  tmp  var
+  bin   data1  data3  data5  dev  home  media  opt   root  srv        sys  usr
+  boot  data2  data4  data6  etc  lib   mnt    proc  sbin  subdomain  tmp  var
 
 
-CPU	count	real total	virtual total	delay total
+  CPU	count	real total	virtual total	delay total
 	6	4000250		4000000		0
-IO	count	delay total
+  IO	count	delay total
 	0	0
-SWAP	count	delay total
+  SWAP	count	delay total
 	0	0
-RECLAIM	count	delay total
+  RECLAIM	count	delay total
 	0	0

Documentation/accounting/index.rst

+.. SPDX-License-Identifier: GPL-2.0
+
+==========
+Accounting
+==========
+
+.. toctree::
+   :maxdepth: 1
+
+   cgroupstats
+   delay-accounting
+   psi
+   taskstats
+   taskstats-struct

Documentation/accounting/psi.txt → Documentation/accounting/psi.rst

@@ -35,14 +35,14 @@ Pressure interface
 Pressure information for each resource is exported through the
 respective file in /proc/pressure/ -- cpu, memory, and io.
 
-The format for CPU is as such:
+The format for CPU is as such::
 
-some avg10=0.00 avg60=0.00 avg300=0.00 total=0
+	some avg10=0.00 avg60=0.00 avg300=0.00 total=0
 
-and for memory and IO:
+and for memory and IO::
 
-some avg10=0.00 avg60=0.00 avg300=0.00 total=0
-full avg10=0.00 avg60=0.00 avg300=0.00 total=0
+	some avg10=0.00 avg60=0.00 avg300=0.00 total=0
+	full avg10=0.00 avg60=0.00 avg300=0.00 total=0
 
 The "some" line indicates the share of time in which at least some
 tasks are stalled on a given resource.
@@ -77,9 +77,9 @@ To register a trigger user has to open psi interface file under
 /proc/pressure/ representing the resource to be monitored and write the
 desired threshold and time window. The open file descriptor should be
 used to wait for trigger events using select(), poll() or epoll().
-The following format is used:
+The following format is used::
 
-<some|full> <stall amount in us> <time window in us>
+	<some|full> <stall amount in us> <time window in us>
 
 For example writing "some 150000 1000000" into /proc/pressure/memory
 would add 150ms threshold for partial memory stall measured within
@@ -115,18 +115,20 @@ trigger  is closed.
 Userspace monitor usage example
 ===============================
 
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <poll.h>
-#include <string.h>
-#include <unistd.h>
-
-/*
- * Monitor memory partial stall with 1s tracking window size
- * and 150ms threshold.
- */
-int main() {
+::
+
+  #include <errno.h>
+  #include <fcntl.h>
+  #include <stdio.h>
+  #include <poll.h>
+  #include <string.h>
+  #include <unistd.h>
+
+  /*
+   * Monitor memory partial stall with 1s tracking window size
+   * and 150ms threshold.
+   */
+  int main() {
 	const char trig[] = "some 150000 1000000";
 	struct pollfd fds;
 	int n;
@@ -165,7 +167,7 @@ int main() {
 	}
 
 	return 0;
-}
+  }
 
 Cgroup2 interface
 =================

Documentation/accounting/taskstats-struct.txt → Documentation/accounting/taskstats-struct.rst

+====================
 The struct taskstats
---------------------
+====================
 
 This document contains an explanation of the struct taskstats fields.
 
@@ -10,16 +11,24 @@ There are three different groups of fields in the struct taskstats:
     the common fields and basic accounting fields are collected for
     delivery at do_exit() of a task.
 2) Delay accounting fields
-    These fields are placed between
-    /* Delay accounting fields start */
-    and
-    /* Delay accounting fields end */
+    These fields are placed between::
+
+	/* Delay accounting fields start */
+
+    and::
+
+	/* Delay accounting fields end */
+
     Their values are collected if CONFIG_TASK_DELAY_ACCT is set.
 3) Extended accounting fields
-    These fields are placed between
-    /* Extended accounting fields start */
-    and
-    /* Extended accounting fields end */
+    These fields are placed between::
+
+	/* Extended accounting fields start */
+
+    and::
+
+	/* Extended accounting fields end */
+
     Their values are collected if CONFIG_TASK_XACCT is set.
 
 4) Per-task and per-thread context switch count statistics
@@ -31,31 +40,33 @@ There are three different groups of fields in the struct taskstats:
 Future extension should add fields to the end of the taskstats struct, and
 should not change the relative position of each field within the struct.
 
+::
 
-struct taskstats {
+  struct taskstats {
+
+1) Common and basic accounting fields::
 
-1) Common and basic accounting fields:
 	/* The version number of this struct. This field is always set to
 	 * TAKSTATS_VERSION, which is defined in <linux/taskstats.h>.
 	 * Each time the struct is changed, the value should be incremented.
 	 */
 	__u16	version;
 
-  	/* The exit code of a task. */
+	/* The exit code of a task. */
 	__u32	ac_exitcode;		/* Exit status */
 
-  	/* The accounting flags of a task as defined in <linux/acct.h>
+	/* The accounting flags of a task as defined in <linux/acct.h>
 	 * Defined values are AFORK, ASU, ACOMPAT, ACORE, and AXSIG.
 	 */
 	__u8	ac_flag;		/* Record flags */
 
-  	/* The value of task_nice() of a task. */
+	/* The value of task_nice() of a task. */
 	__u8	ac_nice;		/* task_nice */
 
-  	/* The name of the command that started this task. */
+	/* The name of the command that started this task. */
 	char	ac_comm[TS_COMM_LEN];	/* Command name */
 
-  	/* The scheduling discipline as set in task->policy field. */
+	/* The scheduling discipline as set in task->policy field. */
 	__u8	ac_sched;		/* Scheduling discipline */
 
 	__u8	ac_pad[3];
@@ -64,26 +75,27 @@ struct taskstats {
 	__u32	ac_pid;			/* Process ID */
 	__u32	ac_ppid;		/* Parent process ID */
 
-  	/* The time when a task begins, in [secs] since 1970. */
+	/* The time when a task begins, in [secs] since 1970. */
 	__u32	ac_btime;		/* Begin time [sec since 1970] */
 
-  	/* The elapsed time of a task, in [usec]. */
+	/* The elapsed time of a task, in [usec]. */
 	__u64	ac_etime;		/* Elapsed time [usec] */
 
-  	/* The user CPU time of a task, in [usec]. */
+	/* The user CPU time of a task, in [usec]. */
 	__u64	ac_utime;		/* User CPU time [usec] */
 
-  	/* The system CPU time of a task, in [usec]. */
+	/* The system CPU time of a task, in [usec]. */
 	__u64	ac_stime;		/* System CPU time [usec] */
 
-  	/* The minor page fault count of a task, as set in task->min_flt. */
+	/* The minor page fault count of a task, as set in task->min_flt. */
 	__u64	ac_minflt;		/* Minor Page Fault Count */
 
 	/* The major page fault count of a task, as set in task->maj_flt. */
 	__u64	ac_majflt;		/* Major Page Fault Count */
 
 
-2) Delay accounting fields:
+2) Delay accounting fields::
+
 	/* Delay accounting fields start
 	 *
 	 * All values, until the comment "Delay accounting fields end" are
@@ -134,7 +146,8 @@ struct taskstats {
 	/* version 1 ends here */
 
 
-3) Extended accounting fields
+3) Extended accounting fields::
+
 	/* Extended accounting fields start */
 
 	/* Accumulated RSS usage in duration of a task, in MBytes-usecs.
@@ -145,15 +158,15 @@ struct taskstats {
 	 */
 	__u64	coremem;		/* accumulated RSS usage in MB-usec */
 
-  	/* Accumulated virtual memory usage in duration of a task.
+	/* Accumulated virtual memory usage in duration of a task.
 	 * Same as acct_rss_mem1 above except that we keep track of VM usage.
 	 */
 	__u64	virtmem;		/* accumulated VM usage in MB-usec */
 
-  	/* High watermark of RSS usage in duration of a task, in KBytes. */
+	/* High watermark of RSS usage in duration of a task, in KBytes. */
 	__u64	hiwater_rss;		/* High-watermark of RSS usage */
 
-  	/* High watermark of VM  usage in duration of a task, in KBytes. */
+	/* High watermark of VM  usage in duration of a task, in KBytes. */
 	__u64	hiwater_vm;		/* High-water virtual memory usage */
 
 	/* The following four fields are I/O statistics of a task. */
@@ -164,17 +177,23 @@ struct taskstats {
 
 	/* Extended accounting fields end */
 
-4) Per-task and per-thread statistics
+4) Per-task and per-thread statistics::
+
 	__u64	nvcsw;			/* Context voluntary switch counter */
 	__u64	nivcsw;			/* Context involuntary switch counter */
 
-5) Time accounting for SMT machines
+5) Time accounting for SMT machines::
+
 	__u64	ac_utimescaled;		/* utime scaled on frequency etc */
 	__u64	ac_stimescaled;		/* stime scaled on frequency etc */
 	__u64	cpu_scaled_run_real_total; /* scaled cpu_run_real_total */
 
-6) Extended delay accounting fields for memory reclaim
+6) Extended delay accounting fields for memory reclaim::
+
 	/* Delay waiting for memory reclaim */
 	__u64	freepages_count;
 	__u64	freepages_delay_total;
-}
+
+::
+
+  }

Documentation/accounting/taskstats.txt → Documentation/accounting/taskstats.rst

+=============================
 Per-task statistics interface
------------------------------
+=============================
 
 
 Taskstats is a netlink-based interface for sending per-task and
@@ -65,7 +66,7 @@ taskstats.h file.
 
 The data exchanged between user and kernel space is a netlink message belonging
 to the NETLINK_GENERIC family and using the netlink attributes interface.
-The messages are in the format
+The messages are in the format::
 
     +----------+- - -+-------------+-------------------+
     | nlmsghdr | Pad |  genlmsghdr | taskstats payload |
@@ -167,15 +168,13 @@ extended and the number of cpus grows large.
 To avoid losing statistics, userspace should do one or more of the following:
 
 - increase the receive buffer sizes for the netlink sockets opened by
-listeners to receive exit data.
+  listeners to receive exit data.
 
 - create more listeners and reduce the number of cpus being listened to by
-each listener. In the extreme case, there could be one listener for each cpu.
-Users may also consider setting the cpu affinity of the listener to the subset
-of cpus to which it listens, especially if they are listening to just one cpu.
+  each listener. In the extreme case, there could be one listener for each cpu.
+  Users may also consider setting the cpu affinity of the listener to the subset
+  of cpus to which it listens, especially if they are listening to just one cpu.
 
 Despite these measures, if the userspace receives ENOBUFS error messages
 indicated overflow of receive buffers, it should take measures to handle the
 loss of data.
-
-----

Documentation/aoe/aoe.rst → Documentation/admin-guide/aoe/aoe.rst

@@ -20,7 +20,7 @@ driver.  The aoetools are on sourceforge.
 
   http://aoetools.sourceforge.net/
 
-The scripts in this Documentation/aoe directory are intended to
+The scripts in this Documentation/admin-guide/aoe directory are intended to
 document the use of the driver and are not necessary if you install
 the aoetools.
 
@@ -86,7 +86,7 @@ Using sysfs
   a convenient way.  Users with aoetools should use the aoe-stat
   command::
 
-    root@makki root# sh Documentation/aoe/status.sh
+    root@makki root# sh Documentation/admin-guide/aoe/status.sh
        e10.0            eth3              up
        e10.1            eth3              up
        e10.2            eth3              up

Documentation/aoe/index.rst → Documentation/admin-guide/aoe/index.rst

-:orphan:
-
 =======================
 ATA over Ethernet (AoE)
 =======================

Documentation/aoe/udev.txt → Documentation/admin-guide/aoe/udev.txt

@@ -11,7 +11,7 @@
 #   udev_rules="/etc/udev/rules.d/"
 #   bash# ls /etc/udev/rules.d/
 #   10-wacom.rules  50-udev.rules
-#   bash# cp /path/to/linux/Documentation/aoe/udev.txt \
+#   bash# cp /path/to/linux/Documentation/admin-guide/aoe/udev.txt \
 #           /etc/udev/rules.d/60-aoe.rules
 #  
 

Documentation/blockdev/drbd/data-structure-v9.txt → Documentation/admin-guide/blockdev/drbd/data-structure-v9.rst

+================================
+kernel data structure for DRBD-9
+================================
+
 This describes the in kernel data structure for DRBD-9. Starting with
 Linux v3.14 we are reorganizing DRBD to use this data structure.
 
@@ -10,7 +14,7 @@ device is represented by a block device locally.
 
 The DRBD objects are interconnected to form a matrix as depicted below; a
 drbd_peer_device object sits at each intersection between a drbd_device and a
-drbd_connection:
+drbd_connection::
 
   /--------------+---------------+.....+---------------\
   |   resource   |    device     |     |    device     |

Documentation/admin-guide/blockdev/drbd/figures.rst

+.. SPDX-License-Identifier: GPL-2.0
+
+.. The here included files are intended to help understand the implementation
+
+Data flows that Relate some functions, and write packets
+========================================================
+
+.. kernel-figure:: DRBD-8.3-data-packets.svg
+    :alt:   DRBD-8.3-data-packets.svg
+    :align: center
+
+.. kernel-figure:: DRBD-data-packets.svg
+    :alt:   DRBD-data-packets.svg
+    :align: center
+
+
+Sub graphs of DRBD's state transitions
+======================================
+
+.. kernel-figure:: conn-states-8.dot
+    :alt:   conn-states-8.dot
+    :align: center
+
+.. kernel-figure:: disk-states-8.dot
+    :alt:   disk-states-8.dot
+    :align: center
+
+.. kernel-figure:: node-states-8.dot
+    :alt:   node-states-8.dot
+    :align: center

Documentation/blockdev/drbd/README.txt → Documentation/admin-guide/blockdev/drbd/index.rst

+==========================================
+Distributed Replicated Block Device - DRBD
+==========================================
+
 Description
+===========
 
   DRBD is a shared-nothing, synchronously replicated block device. It
   is designed to serve as a building block for high availability
@@ -7,10 +12,8 @@ Description
 
   Please visit http://www.drbd.org to find out more.
 
-The here included files are intended to help understand the implementation
-
-DRBD-8.3-data-packets.svg, DRBD-data-packets.svg  
-  relates some functions, and write packets.
+.. toctree::
+   :maxdepth: 1
 
-conn-states-8.dot, disk-states-8.dot, node-states-8.dot
-  The sub graphs of DRBD's state transitions
+   data-structure-v9
+   figures

Documentation/blockdev/drbd/node-states-8.dot → Documentation/admin-guide/blockdev/drbd/node-states-8.dot

@@ -11,4 +11,3 @@ digraph peer_states {
 	Unknown   -> Primary           [ label = "connected" ]
 	Unknown   -> Secondary         [ label = "connected" ]
 }
-

Documentation/blockdev/floppy.txt → Documentation/admin-guide/blockdev/floppy.rst

-This file describes the floppy driver.
+=============
+Floppy Driver
+=============
 
 FAQ list:
 =========
 
- A FAQ list may be found in the fdutils package (see below), and also
+A FAQ list may be found in the fdutils package (see below), and also
 at <http://fdutils.linux.lu/faq.html>.
 
 
 LILO configuration options (Thinkpad users, read this)
 ======================================================
 
- The floppy driver is configured using the 'floppy=' option in
+The floppy driver is configured using the 'floppy=' option in
 lilo. This option can be typed at the boot prompt, or entered in the
 lilo configuration file.
 
- Example: If your kernel is called linux-2.6.9, type the following line
-at the lilo boot prompt (if you have a thinkpad):
+Example: If your kernel is called linux-2.6.9, type the following line
+at the lilo boot prompt (if you have a thinkpad)::
 
  linux-2.6.9 floppy=thinkpad
 
 You may also enter the following line in /etc/lilo.conf, in the description
-of linux-2.6.9:
+of linux-2.6.9::
 
  append = "floppy=thinkpad"
 
- Several floppy related options may be given, example:
+Several floppy related options may be given, example::
 
  linux-2.6.9 floppy=daring floppy=two_fdc
  append = "floppy=daring floppy=two_fdc"
 
- If you give options both in the lilo config file and on the boot
+If you give options both in the lilo config file and on the boot
 prompt, the option strings of both places are concatenated, the boot
 prompt options coming last. That's why there are also options to
 restore the default behavior.
@@ -38,21 +40,23 @@ restore the default behavior.
 Module configuration options
 ============================
 
- If you use the floppy driver as a module, use the following syntax:
-modprobe floppy floppy="<options>"
+If you use the floppy driver as a module, use the following syntax::
 
-Example:
- modprobe floppy floppy="omnibook messages"
+	modprobe floppy floppy="<options>"
 
- If you need certain options enabled every time you load the floppy driver,
-you can put:
+Example::
 
- options floppy floppy="omnibook messages"
+	modprobe floppy floppy="omnibook messages"
+
+If you need certain options enabled every time you load the floppy driver,
+you can put::
+
+	options floppy floppy="omnibook messages"
 
 in a configuration file in /etc/modprobe.d/.
 
 
- The floppy driver related options are:
+The floppy driver related options are:
 
  floppy=asus_pci
 	Sets the bit mask to allow only units 0 and 1. (default)
@@ -70,8 +74,7 @@ in a configuration file in /etc/modprobe.d/.
 	Tells the floppy driver that you have only one floppy controller.
 	(default)
 
- floppy=two_fdc
- floppy=<address>,two_fdc
+ floppy=two_fdc / floppy=<address>,two_fdc
 	Tells the floppy driver that you have two floppy controllers.
 	The second floppy controller is assumed to be at <address>.
 	This option is not needed if the second controller is at address
@@ -84,8 +87,7 @@ in a configuration file in /etc/modprobe.d/.
  floppy=0,thinkpad
 	Tells the floppy driver that you don't have a Thinkpad.
 
- floppy=omnibook
- floppy=nodma
+ floppy=omnibook / floppy=nodma
 	Tells the floppy driver not to use Dma for data transfers.
 	This is needed on HP Omnibooks, which don't have a workable
 	DMA channel for the floppy driver. This option is also useful
@@ -144,14 +146,16 @@ in a configuration file in /etc/modprobe.d/.
 	described in the physical CMOS), or if your BIOS uses
 	non-standard CMOS types. The CMOS types are:
 
-		0 - Use the value of the physical CMOS
-		1 - 5 1/4 DD
-		2 - 5 1/4 HD
-		3 - 3 1/2 DD
-		4 - 3 1/2 HD
-		5 - 3 1/2 ED
-		6 - 3 1/2 ED
-	       16 - unknown or not installed
+	       ==  ==================================
+		0  Use the value of the physical CMOS
+		1  5 1/4 DD
+		2  5 1/4 HD
+		3  3 1/2 DD
+		4  3 1/2 HD
+		5  3 1/2 ED
+		6  3 1/2 ED
+	       16  unknown or not installed
+	       ==  ==================================
 
 	(Note: there are two valid types for ED drives. This is because 5 was
 	initially chosen to represent floppy *tapes*, and 6 for ED drives.
@@ -162,8 +166,7 @@ in a configuration file in /etc/modprobe.d/.
 	Print a warning message when an unexpected interrupt is received.
 	(default)
 
- floppy=no_unexpected_interrupts
- floppy=L40SX
+ floppy=no_unexpected_interrupts / floppy=L40SX
 	Don't print a message when an unexpected interrupt is received. This
 	is needed on IBM L40SX laptops in certain video modes. (There seems
 	to be an interaction between video and floppy. The unexpected
@@ -199,47 +202,54 @@ in a configuration file in /etc/modprobe.d/.
 	Sets the floppy DMA channel to <nr> instead of 2.
 
  floppy=slow
-	Use PS/2 stepping rate:
-	 " PS/2 floppies have much slower step rates than regular floppies.
+	Use PS/2 stepping rate::
+
+	   PS/2 floppies have much slower step rates than regular floppies.
 	   It's been recommended that take about 1/4 of the default speed
-	   in some more extreme cases."
+	   in some more extreme cases.
 
 
 Supporting utilities and additional documentation:
 ==================================================
 
- Additional parameters of the floppy driver can be configured at
+Additional parameters of the floppy driver can be configured at
 runtime. Utilities which do this can be found in the fdutils package.
 This package also contains a new version of mtools which allows to
 access high capacity disks (up to 1992K on a high density 3 1/2 disk!).
 It also contains additional documentation about the floppy driver.
 
 The latest version can be found at fdutils homepage:
+
  http://fdutils.linux.lu
 
 The fdutils releases can be found at:
+
  http://fdutils.linux.lu/download.html
+
  http://www.tux.org/pub/knaff/fdutils/
+
  ftp://metalab.unc.edu/pub/Linux/utils/disk-management/
 
 Reporting problems about the floppy driver
 ==========================================
 
- If you have a question or a bug report about the floppy driver, mail
+If you have a question or a bug report about the floppy driver, mail
 me at Alain.Knaff@poboxes.com . If you post to Usenet, preferably use
 comp.os.linux.hardware. As the volume in these groups is rather high,
 be sure to include the word "floppy" (or "FLOPPY") in the subject
 line.  If the reported problem happens when mounting floppy disks, be
 sure to mention also the type of the filesystem in the subject line.
 
- Be sure to read the FAQ before mailing/posting any bug reports!
+Be sure to read the FAQ before mailing/posting any bug reports!
 
- Alain
+Alain
 
 Changelog
 =========
 
-10-30-2004 :	Cleanup, updating, add reference to module configuration.
+10-30-2004 :
+		Cleanup, updating, add reference to module configuration.
 		James Nelson <james4765@gmail.com>
 
-6-3-2000 :	Original Document
+6-3-2000 :
+		Original Document

Documentation/admin-guide/blockdev/index.rst

+.. SPDX-License-Identifier: GPL-2.0
+
+===========================
+The Linux RapidIO Subsystem
+===========================
+
+.. toctree::
+   :maxdepth: 1
+
+   floppy
+   nbd
+   paride
+   ramdisk
+   zram
+
+   drbd/index

Documentation/blockdev/nbd.txt → Documentation/admin-guide/blockdev/nbd.rst

+==================================
 Network Block Device (TCP version)
 ==================================
 
@@ -28,4 +29,3 @@ max_part
 
 nbds_max
 	Number of block devices that should be initialized (default: 16).
-

Documentation/blockdev/ramdisk.txt → Documentation/admin-guide/blockdev/ramdisk.rst

+==========================================
 Using the RAM disk block device with Linux
-------------------------------------------
+==========================================
 
-Contents:
+.. Contents:
 
 	1) Overview
 	2) Kernel Command Line Parameters
@@ -42,7 +43,7 @@ rescue floppy disk.
 2a) Kernel Command Line Parameters
 
 	ramdisk_size=N
-	==============
+		Size of the ramdisk.
 
 This parameter tells the RAM disk driver to set up RAM disks of N k size.  The
 default is 4096 (4 MB).
@@ -50,16 +51,13 @@ default is 4096 (4 MB).
 2b) Module parameters
 
 	rd_nr
-	=====
-	/dev/ramX devices created.
+		/dev/ramX devices created.
 
 	max_part
-	========
-	Maximum partition number.
+		Maximum partition number.
 
 	rd_size
-	=======
-	See ramdisk_size.
+		See ramdisk_size.
 
 3) Using "rdev -r"
 ------------------
@@ -71,11 +69,11 @@ to 2 MB (2^11) of where to find the RAM disk (this used to be the size). Bit
 prompt/wait sequence is to be given before trying to read the RAM disk. Since
 the RAM disk dynamically grows as data is being written into it, a size field
 is not required. Bits 11 to 13 are not currently used and may as well be zero.
-These numbers are no magical secrets, as seen below:
+These numbers are no magical secrets, as seen below::
 
-./arch/x86/kernel/setup.c:#define RAMDISK_IMAGE_START_MASK     0x07FF
-./arch/x86/kernel/setup.c:#define RAMDISK_PROMPT_FLAG          0x8000
-./arch/x86/kernel/setup.c:#define RAMDISK_LOAD_FLAG            0x4000
+  ./arch/x86/kernel/setup.c:#define RAMDISK_IMAGE_START_MASK     0x07FF
+  ./arch/x86/kernel/setup.c:#define RAMDISK_PROMPT_FLAG          0x8000
+  ./arch/x86/kernel/setup.c:#define RAMDISK_LOAD_FLAG            0x4000
 
 Consider a typical two floppy disk setup, where you will have the
 kernel on disk one, and have already put a RAM disk image onto disk #2.
@@ -92,20 +90,23 @@ sequence so that you have a chance to switch floppy disks.
 The command line equivalent is: "prompt_ramdisk=1"
 
 Putting that together gives 2^15 + 2^14 + 0 = 49152 for an rdev word.
-So to create disk one of the set, you would do:
+So to create disk one of the set, you would do::
 
 	/usr/src/linux# cat arch/x86/boot/zImage > /dev/fd0
 	/usr/src/linux# rdev /dev/fd0 /dev/fd0
 	/usr/src/linux# rdev -r /dev/fd0 49152
 
-If you make a boot disk that has LILO, then for the above, you would use:
+If you make a boot disk that has LILO, then for the above, you would use::
+
 	append = "ramdisk_start=0 load_ramdisk=1 prompt_ramdisk=1"
-Since the default start = 0 and the default prompt = 1, you could use:
+
+Since the default start = 0 and the default prompt = 1, you could use::
+
 	append = "load_ramdisk=1"
 
 
 4) An Example of Creating a Compressed RAM Disk
-----------------------------------------------
+-----------------------------------------------
 
 To create a RAM disk image, you will need a spare block device to
 construct it on. This can be the RAM disk device itself, or an
@@ -120,11 +121,11 @@ a) Decide on the RAM disk size that you want. Say 2 MB for this example.
    Create it by writing to the RAM disk device. (This step is not currently
    required, but may be in the future.) It is wise to zero out the
    area (esp. for disks) so that maximal compression is achieved for
-   the unused blocks of the image that you are about to create.
+   the unused blocks of the image that you are about to create::
 
 	dd if=/dev/zero of=/dev/ram0 bs=1k count=2048
 
-b) Make a filesystem on it. Say ext2fs for this example.
+b) Make a filesystem on it. Say ext2fs for this example::
 
 	mke2fs -vm0 /dev/ram0 2048
 
@@ -133,11 +134,11 @@ c) Mount it, copy the files you want to it (eg: /etc/* /dev/* ...)
 
 d) Compress the contents of the RAM disk. The level of compression
    will be approximately 50% of the space used by the files. Unused
-   space on the RAM disk will compress to almost nothing.
+   space on the RAM disk will compress to almost nothing::
 
 	dd if=/dev/ram0 bs=1k count=2048 | gzip -v9 > /tmp/ram_image.gz
 
-e) Put the kernel onto the floppy
+e) Put the kernel onto the floppy::
 
 	dd if=zImage of=/dev/fd0 bs=1k
 
@@ -146,13 +147,13 @@ f) Put the RAM disk image onto the floppy, after the kernel. Use an offset
    (possibly larger) kernel onto the same floppy later without overlapping
    the RAM disk image. An offset of 400 kB for kernels about 350 kB in
    size would be reasonable. Make sure offset+size of ram_image.gz is
-   not larger than the total space on your floppy (usually 1440 kB).
+   not larger than the total space on your floppy (usually 1440 kB)::
 
 	dd if=/tmp/ram_image.gz of=/dev/fd0 bs=1k seek=400
 
 g) Use "rdev" to set the boot device, RAM disk offset, prompt flag, etc.
    For prompt_ramdisk=1, load_ramdisk=1, ramdisk_start=400, one would
-   have 2^15 + 2^14 + 400 = 49552.
+   have 2^15 + 2^14 + 400 = 49552::
 
 	rdev /dev/fd0 /dev/fd0
 	rdev -r /dev/fd0 49552
@@ -160,15 +161,17 @@ g) Use "rdev" to set the boot device, RAM disk offset, prompt flag, etc.
 That is it. You now have your boot/root compressed RAM disk floppy. Some
 users may wish to combine steps (d) and (f) by using a pipe.
 
---------------------------------------------------------------------------
+
 						Paul Gortmaker 12/95
 
 Changelog:
 ----------
 
-10-22-04 :	Updated to reflect changes in command line options, remove
+10-22-04 :
+		Updated to reflect changes in command line options, remove
 		obsolete references, general cleanup.
 		James Nelson (james4765@gmail.com)
 
 
-12-95 :		Original Document
+12-95 :
+		Original Document

Documentation/admin-guide/bug-hunting.rst

@@ -90,9 +90,9 @@ the disk is not available then you have three options:
     run a null modem to a second machine and capture the output there
     using your favourite communication program.  Minicom works well.
 
-(3) Use Kdump (see Documentation/kdump/kdump.rst),
+(3) Use Kdump (see Documentation/admin-guide/kdump/kdump.rst),
     extract the kernel ring buffer from old memory with using dmesg
-    gdbmacro in Documentation/kdump/gdbmacros.txt.
+    gdbmacro in Documentation/admin-guide/kdump/gdbmacros.txt.
 
 Finding the bug's location
 --------------------------

Documentation/cgroup-v1/cgroups.rst → Documentation/admin-guide/cgroup-v1/cgroups.rst

@@ -3,7 +3,7 @@ Control Groups
 ==============
 
 Written by Paul Menage <menage@google.com> based on
-Documentation/cgroup-v1/cpusets.rst
+Documentation/admin-guide/cgroup-v1/cpusets.rst
 
 Original copyright statements from cpusets.txt:
 
@@ -76,7 +76,7 @@ On their own, the only use for cgroups is for simple job
 tracking. The intention is that other subsystems hook into the generic
 cgroup support to provide new attributes for cgroups, such as
 accounting/limiting the resources which processes in a cgroup can
-access. For example, cpusets (see Documentation/cgroup-v1/cpusets.rst) allow
+access. For example, cpusets (see Documentation/admin-guide/cgroup-v1/cpusets.rst) allow
 you to associate a set of CPUs and a set of memory nodes with the
 tasks in each cgroup.
 

Documentation/cgroup-v1/cpusets.rst → Documentation/admin-guide/cgroup-v1/cpusets.rst

@@ -49,7 +49,7 @@ hooks, beyond what is already present, required to manage dynamic
 job placement on large systems.
 
 Cpusets use the generic cgroup subsystem described in
-Documentation/cgroup-v1/cgroups.rst.
+Documentation/admin-guide/cgroup-v1/cgroups.rst.
 
 Requests by a task, using the sched_setaffinity(2) system call to
 include CPUs in its CPU affinity mask, and using the mbind(2) and

Documentation/cgroup-v1/index.rst → Documentation/admin-guide/cgroup-v1/index.rst

-:orphan:
-
 ========================
 Control Groups version 1
 ========================

Documentation/cgroup-v1/memcg_test.rst → Documentation/admin-guide/cgroup-v1/memcg_test.rst

@@ -10,7 +10,7 @@ Because VM is getting complex (one of reasons is memcg...), memcg's behavior
 is complex. This is a document for memcg's internal behavior.
 Please note that implementation details can be changed.
 
-(*) Topics on API should be in Documentation/cgroup-v1/memory.rst)
+(*) Topics on API should be in Documentation/admin-guide/cgroup-v1/memory.rst)
 
 0. How to record usage ?
 ========================
@@ -327,7 +327,7 @@ Under below explanation, we assume CONFIG_MEM_RES_CTRL_SWAP=y.
 	You can see charges have been moved by reading ``*.usage_in_bytes`` or
 	memory.stat of both A and B.
 
-	See 8.2 of Documentation/cgroup-v1/memory.rst to see what value should
+	See 8.2 of Documentation/admin-guide/cgroup-v1/memory.rst to see what value should
 	be written to move_charge_at_immigrate.
 
 9.10 Memory thresholds

Documentation/admin-guide/cgroup-v2.rst

@@ -9,7 +9,7 @@ This is the authoritative documentation on the design, interface and
 conventions of cgroup v2.  It describes all userland-visible aspects
 of cgroup including core and specific controller behaviors.  All
 future changes must be reflected in this document.  Documentation for
-v1 is available under Documentation/cgroup-v1/.
+v1 is available under Documentation/admin-guide/cgroup-v1/.
 
 .. CONTENTS
 
@@ -1014,7 +1014,7 @@ All time durations are in microseconds.
 	A read-only nested-key file which exists on non-root cgroups.
 
 	Shows pressure stall information for CPU. See
-	Documentation/accounting/psi.txt for details.
+	Documentation/accounting/psi.rst for details.
 
 
 Memory
@@ -1355,7 +1355,7 @@ PAGE_SIZE multiple when read back.
 	A read-only nested-key file which exists on non-root cgroups.
 
 	Shows pressure stall information for memory. See
-	Documentation/accounting/psi.txt for details.
+	Documentation/accounting/psi.rst for details.
 
 
 Usage Guidelines
@@ -1498,7 +1498,7 @@ IO Interface Files
 	A read-only nested-key file which exists on non-root cgroups.
 
 	Shows pressure stall information for IO. See
-	Documentation/accounting/psi.txt for details.
+	Documentation/accounting/psi.rst for details.
 
 
 Writeback

Documentation/device-mapper/index.rst → Documentation/admin-guide/device-mapper/index.rst

-:orphan:
-
 =============
 Device Mapper
 =============

Documentation/device-mapper/statistics.rst → Documentation/admin-guide/device-mapper/statistics.rst

@@ -13,7 +13,7 @@ the range specified.
 
 The I/O statistics counters for each step-sized area of a region are
 in the same format as `/sys/block/*/stat` or `/proc/diskstats` (see:
-Documentation/iostats.txt).  But two extra counters (12 and 13) are
+Documentation/admin-guide/iostats.rst).  But two extra counters (12 and 13) are
 provided: total time spent reading and writing.  When the histogram
 argument is used, the 14th parameter is reported that represents the
 histogram of latencies.  All these counters may be accessed by sending
@@ -151,7 +151,7 @@ Messages
 	  The first 11 counters have the same meaning as
 	  `/sys/block/*/stat or /proc/diskstats`.
 
-	  Please refer to Documentation/iostats.txt for details.
+	  Please refer to Documentation/admin-guide/iostats.rst for details.
 
 	  1. the number of reads completed
 	  2. the number of reads merged

Documentation/gpio/index.rst → Documentation/admin-guide/gpio/index.rst

-:orphan:
+.. SPDX-License-Identifier: GPL-2.0
 
 ====
 gpio

Documentation/admin-guide/hw-vuln/l1tf.rst

@@ -241,7 +241,7 @@ Guest mitigation mechanisms
    For further information about confining guests to a single or to a group
    of cores consult the cpusets documentation:
 
-   https://www.kernel.org/doc/Documentation/cgroup-v1/cpusets.rst
+   https://www.kernel.org/doc/Documentation/admin-guide/cgroup-v1/cpusets.rst
 
 .. _interrupt_isolation:
 

Documentation/admin-guide/index.rst

@@ -16,6 +16,7 @@ etc.
    README
    kernel-parameters
    devices
+   sysctl/index
 
 This section describes CPU vulnerabilities and their mitigations.
 
@@ -38,6 +39,8 @@ problems and bugs in particular.
    ramoops
    dynamic-debug-howto
    init
+   kdump/index
+   perf/index
 
 This is the beginning of a section with information of interest to
 application developers.  Documents covering various aspects of the kernel
@@ -56,11 +59,13 @@ configure specific aspects of kernel behavior to your liking.
 
    initrd
    cgroup-v2
+   cgroup-v1/index
    serial-console
    braille-console
    parport
    md
    module-signing
+   rapidio
    sysrq
    unicode
    vga-softcursor
@@ -69,14 +74,37 @@ configure specific aspects of kernel behavior to your liking.
    java
    ras
    bcache
+   blockdev/index
    ext4
    binderfs
    pm/index
    thunderbolt
    LSM/index
    mm/index
+   namespaces/index
    perf-security
    acpi/index
+   aoe/index
+   btmrvl
+   clearing-warn-once
+   cpu-load
+   cputopology
+   device-mapper/index
+   efi-stub
+   gpio/index
+   highuid
+   hw_random
+   iostats
+   kernel-per-CPU-kthreads
+   laptops/index
+   lcd-panel-cgram
+   ldm
+   lockup-watchdogs
+   numastat
+   pnp
+   rtc
+   svga
+   video-output
 
 .. only::  subproject and html