Since commit b3ac04132c ("mm/rmap: Turn page_referenced() into
folio_referenced()") the page_referenced function name was modified,
so fix it up to use the correct one.
Signed-off-by: Vernon Yang <vernon2gm@gmail.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/20220926152032.74621-1-vernon2gm@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The Code of Conduct interpretation does not reflect the current
practices of the CoC committee or the TAB. Update the documentation
to remove references to initial committees and boot strap periods
since it is past that time, and note that the this document
does serve as the documentation for the CoC committee processes.
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220926211149.2278214-1-kristen@linux.intel.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Now that building html docs with math expressions does not need texlive
packages, remove the note on the requirement in the "Sphinx Install"
section.
Instead, add sections of "Math Expressions in HTML" and "Choice of Math
Renderer".
Describe the effect of setting SPHINX_IMGMATH in the latter section.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/a67e3279-6bc7-ee2c-2b49-9275252460b0@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Bring the description on when to use the Reported-by: tag found in
Documentation/process/5.Posting.rst more in line with the description in
Documentation/process/submitting-patches.rst: before this change the two
were contradicting each other, as the latter is way more permissive and
only states '[...] if the bug was reported in private, then ask for
permission first before using the Reported-by tag.'
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/2fc7162dfb76e04da5ea903c9c170d913e735dad.1664372256.git.linux@leemhuis.info
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
After commit 22471e1313 ("kconfig: use a menu in arch/Kconfig to reduce
clutter"), the location of Kprobes is under "General architecture-dependent
options" rather than "General setup".
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Fixes: 22471e1313 ("kconfig: use a menu in arch/Kconfig to reduce clutter")
Link: https://lore.kernel.org/r/1663322106-12178-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The top-level index.rst file is the entry point for the kernel's
documentation, especially for readers of the HTML output. It is currently
a mess containing everything we thought to throw in there. Firefox says it
would require 26 pages of paper to print it. That is not a user-friendly
introduction.
This series aims to improve our documentation entry point with a focus on
rewriting index.rst. The result is, IMO, simpler and more approachable.
For anybody who wants to see the rendered results without building the
docs, have a look at:
https://static.lwn.net/kerneldoc/
This time around I've rendered the pages using the "Read The Docs" theme,
since that's what everybody will get by default. That theme ignores the
directives regarding the left column, so the results are not as good there.
I have a series proposing a default-theme change in the works, but that's a
separate topic.
This is only a beginning; I think this kind of organizational effort has to
be pushed down into the lower layers of the docs tree itself. But one has
to start somewhere.
Readers looking for user-oriented information may benefit from it.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: David Vernet <void@manifault.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220927160559.97154-8-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
These files describe part of the core API, but have never been converted to
RST due to ... let's say local oppposition. So, create a set of
special-purpose wrappers to ..include these files into a separate page so
that they can be a part of the htmldocs build. Then link them into the
core-api manual and remove them from the "staging" dumping ground.
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: David Vernet <void@manifault.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220927160559.97154-7-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This one file should not really be in the top-level documentation
directory. core-api/ may not be a perfect fit but seems to be best, so
move it there. Adjust a couple of internal document references to make
them location-independent, and point checkpatch.pl at the new location.
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Joe Perches <joe@perches.com>
Reviewed-by: David Vernet <void@manifault.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220927160559.97154-6-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There is some useless boilerplate text that was added by sphinx when this
file was first created; take it out.
Reviewed-by: David Vernet <void@manifault.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220927160559.97154-5-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Use the html_sidebars directive to get a more useful set of links in the
left column.
Unfortunately, this is a no-op with the default RTD theme, but others
observe it.
Reviewed-by: David Vernet <void@manifault.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220927160559.97154-4-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The front page is the entry point to the documentation, especially for
people who read it online. It's a big mess of everything we could think to
toss into it. Rewrite the page with an eye toward simplicity and making it
easy for readers to get going toward what they really want to find.
This is only a beginning, but it makes our docs more approachable than
before.
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: David Vernet <void@manifault.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220927160559.97154-3-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
...otherwise Sphinx won't cooperate when trying to list it explicitly in
the top-level index.rst file
Reviewed-by: David Vernet <void@manifault.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20220927160559.97154-2-corbet@lwn.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add devm_spi_alloc_master() and devm_spi_alloc_slave() to devres.rst.
They are introduced by
commit 5e844cc37a ("spi: Introduce device-managed SPI controller allocation").
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/20220923141803.75734-1-yangyingliang@huawei.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Translate core-api/packing.rst into Chinese.
Last English version used:
commit 1ec779b9fa ("docs: packing: move it to core-api book
and adjust markups").
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si<siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/96b19575ca7e9e23941e8a5ef92120f1bffbc518.1660881950.git.zhoubinbin@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Translate core-api/generic-radix-tree.rst into Chinese.
Last English version used:
commit ba20ba2e37 ("generic radix trees").
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si<siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/aad94e2a053ae021eb4d63240690b05c2f3e8dec.1660881950.git.zhoubinbin@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Translate core-api/idr.rst into Chinese.
Last English version used:
commit 85656ec193 ("IDR: Note that the IDR API is deprecated").
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si<siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/9f578ea087df7ef8665fc08541d208e7429176ec.1660881950.git.zhoubinbin@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
In Fedora 36, cross-compiling an allmodconfig configuration
for other architectures on x86 fails with this problem:
In file included from ../scripts/gcc-plugins/gcc-common.h:95,
from ../scripts/gcc-plugins/latent_entropy_plugin.c:78:
/usr/lib/gcc/aarch64-linux-gnu/12/plugin/include/builtins.h:23:10: fatal
error: mpc.h: No such file or directory
23 | #include <mpc.h>
| ^~~~~~~
compilation terminated.
In that distro, that header file is available in the separate
libmpc-devel package.
Although future versions of Fedora might correctly mark
that dependency, mention this additional package.
To help detect such problems ahead of time, describe the
gcc -print-file-name=plugin
command that is used by scripts/gcc-plugins/Kconfig to detect
plugins [1].
[1] https://lore.kernel.org/lkml/CAHk-=wjjiYjCp61gdAMpDOsUBU-A2hFFKJoVx5VAC7yV4K6WYg@xxxxxxxxxxxxxx/
Fixes: 43e96ef8b7 ("docs/core-api: Add Fedora instructions for GCC plugins");
Signed-off-by: Robert Elliott <elliott@hpe.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220827193836.2582079-1-elliott@hpe.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* update to commit c04639a7d2 ("coding-style.rst: trivial: fix
location of driver model macros")
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/Yw2ewM4wfaDDLjTk@bobwxc.mipc
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit 7c693f54c8 ("x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS")
adds the "ibrs " option in
Documentation/admin-guide/kernel-parameters.txt but omits it to
Documentation/admin-guide/hw-vuln/spectre.rst, add it.
Signed-off-by: Lin Yujun <linyujun809@huawei.com>
Link: https://lore.kernel.org/r/20220830123614.23007-1-linyujun809@huawei.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Change occurrences of "it's" that are possessive to "its"
so that they don't read as "it is".
For f2fs.rst, reword one description for better clarity.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Cc: linux-xfs@vger.kernel.org
Cc: Christian Brauner <brauner@kernel.org>
Cc: Seth Forshee <sforshee@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: "Christian Brauner (Microsoft)" <brauner@kernel.org>
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Link: https://lore.kernel.org/r/20220901002828.25102-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Additionally to the "commit <sha1> upstream." variant, "[ Upstream
commit <sha1> ]" is used as well as alternative to refer to the upstream
commit hash.
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Link: https://lore.kernel.org/r/20220901184328.4075701-1-carnil@debian.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The current section 'If something goes wrong' makes a number of suggestions
for debugging, bug hunting and reporting issues, which are quite briefly
described in that section.
However, the suggestions are also well covered in other kernel
documentation or sometimes simply outdated. Here, each suggestion in that
section is summarized, and then followed with its assessment, and the
derived action for each suggestion:
- use MAINTAINERS and mailing list: covered in 'Reporting issues',
summarized in the short guide, detailed in its further section.
Reporting issues even provides some specific examples that guides
readers well through the needed steps. Refer to 'Reporting issues'.
- contact Linus Torvalds: probably outdated as currently described.
nevertheless covered in 'Reporting issues'. Reporting issues points out
to contact the relevant kernel maintainers first, and after some
patience and failed attempts with those maintainers, contacting Linus
Torvalds might be okay. Refer to 'Reporting issues'.
- tell what kernel, how to duplicate, the setup, if the problem is new
or old and when did you notice: covered in 'Reporting issues',
especially in Step-by-step guide how to report issues to the kernel
maintainers. Refer to 'Reporting issues'.
- duplicate kernel bug reports exactly: covered in 'Reporting issues',
especially in Write and send the report. Refer to 'Reporting issues'.
- read 'Bug hunting': keep this reference. Refer to 'Bug hunting'.
- compile the kernel with CONFIG_KALLSYMS: covered in 'Reporting issues',
especially in Decode failure messages. Refer to 'Reporting issues'.
- alternatively, use ksymoops: ksymoops at the mentioned URL seems not to
be maintained anymore. It was released roughly once a year until
version 2.4.11 in 2005, but has not seen a new release since then. The
information in ./scripts/ksymoops/README is from 1999, and does not
give more insight on its actual maintenance state either. Ksymoops is
mentioned as system utility in changes.rst, but also not recommended
there. Drop the explanation on using ksymoops.
- alternatively, lookup dump manually with the EIP and nm to determine
the function in which the kernel crashes: this method seems already a
quite advanced and low-level debugging method. Even all the further
references on bug hunting and debugging do not mention it. Drop this
alternative method and limit mentioning methods explained in the other
existing kernel documentation.
- read 'Reporting issues': keep this reference.
Refer to 'Reporting issues'.
- use gdb for debugging: some specific details, e.g., edit
arch/x86/Makefile, are probably outdated or limited to one (historic
important) setup. Using gdb is covered in 'Bug hunting', 'Debugging
kernel and modules via gdb' and 'Using kgdb, kdb and the kernel
debugger internals'. Refer to those three documents.
Overall, it is sufficient to refer to reporting-issues.rst,
bug-hunting.rst, gdb-kernel-debugging.rst and kgdb.rst and this way cover
the existing suggestions.
'Reporting issues' is quite new and probably up to date. 'Bug hunting',
'Debugging kernel and modules via gdb' and 'Using kgdb, kdb and the kernel
debugger internals' might need some revisit and update, but they are
generally in an acceptable state for referring to them.
Replace the existing suggestions by reference to other existing kernel
documentation covering those suggestions---partly even nicely summarized
and then explained in greater detail.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220720041325.15693-3-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Running a.out user programs with the latest kernel release is a very rare
and uncommon use case nowadays. The support of a.out user programs is only
remaining for the alpha architecture and is not defined and activated in
the architecture's Kconfig (so even the activation of this support requires
to modify the Kconfig file and not just kernel build configuration).
The discussion on a.out support in 2019 (see Link) shows that the support
of a.out user programs is just remaining for a special corner case from
some (alpha architecture) users.
There is no need to point out and mention this special feature to the
general audience of kernel users. Delete the reference to this historic and
special feature.
Link: https://lore.kernel.org/all/CAHk-=wgt7M6yA5BJCJo0nF22WgPJnN8CvViL9CAJmd+S+Civ6w@mail.gmail.com/
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220720041325.15693-2-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Correct all uses of "it's" that are meant to be possessive "its".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220801025207.29971-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
On some distros with coarse-grained packaging policy, dvipng is
installed along with latex. In such cases, math rendering will
use imgmath by default. It is possible to override the choice by
specifying the option string of "-D html_math_renderer='mathjax'"
to sphinx-build (Sphinx >= 1.8).
To provide developers an easier-to-use knob, add code for an env
variable "SPHINX_IMGMATH" which overrides the automatic choice
of math renderer for html docs.
SPHINX_IMGMATH=yes : Load imgmath even if dvipng is not found
SPHINX_IMGMATH=no : Don't load imgmath (fall back to mathjax)
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/5a582b2b-d51c-a062-36b2-19479cf68fab@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Currently, math expressions using the "math::" directive or
the ":math:" role of Sphinx need the imgmath extension for proper
rendering in html and epub builds.
imgmath requires dvipng (and latex).
Otherwise, "make htmldocs" will complain of missing commands.
As a matter of fact, the mathjax extension is loaded by default since
Sphinx v1.8 and it is good enough for html docs without any dependency
on texlive packages.
Stop loading the imgmath extension for html docs unless requirements
for imgmath are met.
To find out whether required commands are available, add a helper
find_command(), which is a wrapper of shutil.which().
For epub docs, keep the same behavior of always loading imgmath.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/a6a877fc-dc93-2bda-a6d3-37001d99942a@gmail.com
[jc: Took out the writing of the math_renderer decision]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* update to commit 163ba35ff3 ("doc: use KCFLAGS instead of
EXTRA_CFLAGS to pass flags from command line")
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/Ywli7VfhQVPHKiGw@bobwxc.mipc
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add missing update for the documentation bit of some scheduler knob.
The knobs have been moved to /debug/sched/ location (with adjusted names).
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Alex Shi <alexs@kernel.org>
Tested-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20220816121907.841-1-lukasz.luba@arm.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The English version of IRQ has been refactored and
the new document (not called that anymore) has been
moved to core-api/irq, which has been translated
into Chinese. oops-tracing is pretty much the same,
let's remove them.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Wu XiangCheng <bobwxc@email.cn>
Link: https://lore.kernel.org/r/7dc43c33ea7e2edf668070b203dce83b285f2cdb.1661431365.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
