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2022-02-24scripts: kernel-doc: Translate the "Other parameters" subsection of OPTIONSTomasz Warniełło1-5/+18
Aim: unified POD, user more satisfied, script better structured Notes: - The -help token is added. - The entries are sorted alphbetically. Signed-off-by: Tomasz Warniełło <tomasz.warniello@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Disliked-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20220218181628.1411551-9-tomasz.warniello@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-24scripts: kernel-doc: Translate the "Output selection modifiers" subsection of OPTIONSTomasz Warniełło1-8/+29
Aim: unified POD, user more satisfied, script better structured A subsection "reStructuredText only" is added for -enable-lineno. Other notes: - paragraphing correction Signed-off-by: Tomasz Warniełło <tomasz.warniello@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Disliked-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20220218181628.1411551-8-tomasz.warniello@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-24scripts: kernel-doc: Translate the "Output selection" subsection of OPTIONSTomasz Warniełło1-13/+29
Aim: unified POD, user more satisfied, script better structured The plurals in -function and -nosymbol are corrected to singulars. That's how the script works now. I think this describes the syntax better. The plurar suggests multiple FILE arguments might be possible. So this seems more coherent. Other notes: - paragraphing correction - article correction Signed-off-by: Tomasz Warniełło <tomasz.warniello@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Disliked-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20220218181628.1411551-7-tomasz.warniello@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-24scripts: kernel-doc: Translate the "Output format selection modifier" subsection of OPTIONSTomasz Warniełło1-7/+15
Aim: unified POD, user more happy This section is renamed to "Output format modifiers" to make it simple. To make it even more simple, a subsection is added: "reStructuredText only". Other notes: - paragraphing correction - article correction Signed-off-by: Tomasz Warniełło <tomasz.warniello@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Disliked-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20220218181628.1411551-6-tomasz.warniello@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-24scripts: kernel-doc: Translate the "Output format selection" subsection of OPTIONSTomasz Warniełło1-5/+26
Another step in the direction of a uniform POD documentation, which will make users happier. Options land at the end of the script, not to clutter the file top. The default output format is corrected to rst. That's what it is now. A POD delimiting comment is added to the script head, which improves the script logical structure. Signed-off-by: Tomasz Warniełło <tomasz.warniello@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Disliked-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20220218181628.1411551-5-tomasz.warniello@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-24scripts: kernel-doc: Translate the DESCRIPTION sectionTomasz Warniełło1-6/+9
Transition the description section into POD. This is one of the standard documentation sections. This adjustment makes the section available for POD and makes it look better. Notes: - an article addition - paragraphing correction Signed-off-by: Tomasz Warniełło <tomasz.warniello@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Disliked-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20220218181628.1411551-4-tomasz.warniello@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-24scripts: kernel-doc: Relink argument parsing error handling to pod2usageTomasz Warniełło1-3/+17
The former usage function is substituted, although not as the -h and -help parameter handler yet. Purpose: Use Pod::Usage to handle documentation printing in an integrated way. Signed-off-by: Tomasz Warniełło <tomasz.warniello@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Disliked-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20220218181628.1411551-3-tomasz.warniello@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-24scripts: kernel-doc: Add the basic POD sectionsTomasz Warniełło1-0/+25
The NAME section provides the doc title, while SYNOPSIS contains the basic syntax and usage description, which will be printed in the help document and in the error output produced on wrong script usage. The rationale is to give users simple and succinct enlightment, at the same time structuring the script internally for the maintainers. In the synopsis, Rst-only options are grouped around rst, and the rest is arranged as in the OPTIONS subsections (yet to be translated into POD, check at the end of the series). The third of the basic sections, DESCRIPTION, is added separately. Signed-off-by: Tomasz Warniełło <tomasz.warniello@gmail.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Disliked-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/20220218181628.1411551-2-tomasz.warniello@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-24docs: Remove duplicated words in trace/osnoise-tracerOscar Shiang1-2/+2
There are 2 duplicated words found in osnoise tracer documentation. This patch removes them. Signed-off-by: Oscar Shiang <oscar0225@livemail.tw> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org> Link: https://lore.kernel.org/r/TYCP286MB1913117487F390E3BCE38B15A1399@TYCP286MB1913.JPNP286.PROD.OUTLOOK.COM Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15docs: pdfdocs: Move CJK monospace font setting to main conf.pyAkira Yokosawa2-12/+8
As LaTeX macros for CJK font settings can have Latin-script font settings as well, settings under Documentation/translations/ can be moved to the main conf.py. By this change, translations.pdf built by top-level "make pdfdocs" can have properly aligned ascii-art diagrams except for Korean ones. For the reason of remaining misalignment in Korean diagrams, see changelog of commit a90dad8f610a ("docs: pdfdocs: Add conf.py local to translations for ascii-art alignment"). Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/eb87790a-03f4-9f29-c8a3-ef2c3e78ca18@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15docs/translations: Skip CJK contents if suitable fonts not foundAkira Yokosawa5-13/+17
On systems without "Noto Sans CJK" fonts, CJK chapters in translations.pdf are full of "TOFU" boxes, with a long build time and a large log file containing lots of missing-font warnings. Avoid such waste of time and resources by skipping CJK chapters when CJK fonts are not available. To skip whole chapters, change the definition of \kerneldocBegin{SC|TC|KR|JP} commands so that they can have an argument to be ignored. This works as far as the argument (#1) is not used in the command. In place of skipped contents, put a note on skipped contents at the beginning of the PDF. Change the call sites in index.rst of CJK translations accordingly. When CJK fonts are available, existing command definitions with no argument just work. LaTeX engine will see additional pairs of "{" and "}", which add a level of grouping without having any effect on typesetting. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/3359ca41-b81d-b2c7-e437-7618efbe241d@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15docs: pdfdocs: Enable CJKspace in TOC for Korean titlesAkira Yokosawa1-1/+5
Korean (Hangul) titles in Table of Contents of translations.pdf don't have inter-phrase spaces. This is because the CJKspace option of xeCJK is disabled by default. Restore the spaces by enabling the option at the beginning of every document and disable it in the \kerneldocBegin{SC|TC|JP} commands. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/19141b3e-01d9-1f6d-5020-42fbda784831@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15docs: pdfdocs: Switch default CJK font to KR variantsAkira Yokosawa1-9/+14
xeCJK is enabled in Table of Contents (TOC) so that translations.pdf built by top-level "make pdfdocs" can have its TOC typeset properly. This causes quotation marks and apostrophe symbols appear too wide in Latin-script docs. This is because (1) Sphinx converts ASCII symbols into multi-byte UTF-8 ones in LaTeX and (2) in the SC variant of "Noto CJK" font families, those UTF-8 symbols have full-width glyph. The KR variant of the font families has half-width glyph for those symbols and TOC pages should look nicer when it is used instead. Switch the default CJK font families to the KR variant and teach xeCJK of those symbols' widths. To compensate the switch, teach xeCJK of the width in the SC and TC variants. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/0c8ea878-0a6f-ea01-ab45-4e66c5facee9@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15docs: pdfdocs: Tweak width params of TOCAkira Yokosawa1-0/+31
Sphinx has its own set of width parameters of Table of Contents (TOC) for LaTeX defined in its class definition of sphinxmanual.cls. It also inherits parameters for chapter entries from report.cls of original LaTeX base. However, they are optimized assuming small documents with tens of pages and chapters/sections of less than 10. To cope with some of kernel-doc documents with more than 1000 pages and several tens of chapters/sections, definitions of those parameters need to be adjusted. Unfortunately, those parameters are hard coded in the class definitions and need low-level LaTeX coding tricks to redefine. As Sphinx 1.7.9 does not have \sphinxtableofcontentshook, which defines those parameters in later Sphinx versions, for compatibility with both pre-1.8 and later Sphinx versions, empty the hook altogether and redefine \@pnumwidth, \l@chapter, \l@section, and \@subsection commands originally defined in report.cls. Summary of parameter changes: Width of page number (\@pnumwidth): 1.55em -> 2.7em Width of chapter number: 1.5em -> 1.8em Indent of section number: 1.5em -> 1.8em Width of section number: 2.6em -> 3.2em Indent of subsection number: 4.1em -> 5em Width of subsection number: 3.5em -> 4.3em Notes: 1. Parameters for subsection become relevant only when ":maxdepth: 3" is specified under "toctree::" (e.g., RCU/index.rst). They can hold subsection numbers up to 5 digits such as "18.7.13" (in RCU.pdf). 2. Number of chapters in driver-api.pdf is getting closer to 100. When it reaches 100, another set of tweaks will be necessary. 3. The low-level LaTeX trick is mentioned in "Unofficial LaTeX2e reference manual" at: http://latexref.xyz/Table-of-contents-etc_002e.html Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/e52b4718-7909-25be-fbc1-76800aa62ae3@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15docs: Fix wording in optional zram feature docsEthan Dye1-10/+10
This fixes some simple grammar errors in the documentation for zram, specifically errors in the optional feature section of the zram documentation. Signed-off-by: Ethan Dye <mrtops03@gmail.com> Link: https://lore.kernel.org/r/20220207235442.95090-1-mrtops03@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15docs/zh_CN: Add sched-energy Chinese translationTang Yizhou2-2/+353
Translate scheduler/sched-energy.rst into Chinese. Signed-off-by: Tang Yizhou <tangyizhou@huawei.com> Reviewed-by: Alex Shi <alexs@kernel.org> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Link: https://lore.kernel.org/r/20220208020105.14117-1-tangyizhou@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15docs/zh_CN: Add energy-model Chinese translationTang Yizhou2-1/+191
Translate power/energy-model.rst into Chinese. Signed-off-by: Tang Yizhou <tangyizhou@huawei.com> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/20220208133716.24070-1-tangyizhou@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15Documentation: Fix links for udftools project and pktcdvd toolPali Rohár2-3/+3
Signed-off-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20220210192200.30828-1-pali@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-15Documentation: dev-tools: clarify KTAP specification wordingFrank Rowand1-8/+23
Add the spec version to the title line. Explain likely source of "Unknown lines". "Unknown lines" in nested tests are optionally indented. Add "Unknown lines" items to differences between TAP & KTAP list Convert "Major differences between TAP and KTAP" from a bullet list to a table. The bullet list was being formatted as a single paragraph. Reviewed-by: Tim Bird <Tim.Bird@sony.com> Reviewed-by: David Gow <davidgow@google.com> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Frank Rowand <frank.rowand@sony.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Link: https://lore.kernel.org/r/20220210233630.3304495-1-frowand.list@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-14docs: Makefile: Add -no-shell-escape option to LATEXOPTSAkira Yokosawa1-1/+1
It turns out that LaTeX enables \write18, which allows (some) shell commands to be executed from the document source, by default. This the often-seen warning during a pdfdocs build: restricted \write18 enabled That is a potential security problem and is entirely unnecessary; nothing in the kernel PDF docs build needs that capability. So disable \write18 explicitly. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/519bd2d9-1bee-03e1-eeb4-d9883c18be0c@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-09docs: sphinx/kfigure.py: Delegate inkscape msg to kernellog.verboseAkira Yokosawa1-3/+19
Depending on its version, distro config, and system-setup type, inkscape(1) emits various warning messages which are harmless in command-line uses. List of such warning messages (incomplete, long ones wrapped): - Gtk-Message: hh:mm:ss.nnn: Failed to load module "canberra-gtk-module" - Unable to init server: Could not connect: Connection refused - Failed to get connection - ** (inkscape:xxx): CRITICAL **: hh:mm:ss.nnn: dbus_g_proxy_new_for_name: assertion 'connection != NULL' failed - ** (inkscape:xxx): CRITICAL **: hh:mm:ss.nnn: dbus_g_proxy_call: assertion 'DBUS_IS_G_PROXY (proxy)' failed - ** (inkscape:xxx): CRITICAL **: hh:mm:ss.nnn: dbus_g_connection_register_g_object: assertion 'connection != NULL' failed - ** (inkscape:xxx): WARNING **: hh:mm:ss.nnn: Fonts dir '/usr/share/inkscape/fonts' does not exist and will be ignored. To avoid unnecessary anxiety, capture the message and output it via kernellog.verbose or kernellog.warn depending on the exit code. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/e26a7b53-9155-8394-4a31-6006379b65a5@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-09docs: sphinx/kfigure.py: Use inkscape(1) for SVG -> PDF conversionAkira Yokosawa1-20/+48
Using convert(1) of ImageMagick for SVG -> PDF conversion results in PDFs containing raster (bitmap) images which sometimes look blurry. Ideally speaking, SVG to PDF conversion should retain vector graphics in SVG. rsvg-convert(1) can do such conversions with regard to SVG files generated by dot(1). Unfortunately, rsvg-convert(1) does not cover some of SVG features specific to Inkscape. inkscape(1) of Inkscape naturally covers such SVG features. So add a route in svg2pdf() so that inkscape(1) is used when it is available. Note: After this change, if you have Inkscape installed, ImageMagick nor librsvg are not required. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/3eea2a8d-c52d-ee07-cf7b-83784c6f6e4b@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-09docs: sphinx/kfigure.py: Add check of 'dot -Tpdf'Akira Yokosawa1-4/+26
To prevent any regression on existing build systems, limit the fallback of converting DOT -> raster PDF only when both of the following conditions are met. o dot(1) doesn't support -Tpdf o rsvg-convert(1) is not found While we are here, add kernellog.verbose messages related to rsvg-convert, 'dot -Tpdf', and 'dot -Tsvg' commands. Suggested-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/e76f61e1-7366-ba00-b119-8ea6a2499861@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-09docs: sphinx/kfigure.py: Use rsvg-convert(1) for DOT -> PDF conversionAkira Yokosawa1-2/+44
On openSUSE, dot(1) command does not support direct PDF output. On other distros, generated PDF images have unnecessarily wide margins, especially for small graphs. By using dot(1) for DOT -> SVG, then rsvg-convert(1) for SVG -> PDF, more optimal PDF images can be obtained, with the bonus of improved portability across various distros. Add rules in kfigure.py so that the above mentioned route is taken when rsvg-convert(1) is available. Note that rsvg-convert(1) is recommended by sphinx_pre_install. So it is most likely that existing systems for building pdfdocs have rsvg-convert(1) installed. Note: SVG features supported by rsvg-convert(1) vary depending on its version and distro config. For example, the one found on Ubuntu Bionic (version 2.40.20) does poor job in rendering some of SVG files drawn by Inkscape. SVG files generated by dot(1) are converted nicely even with such old versions of rsvg-convert. So this change does not affect the quality of such figures in any way. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/15b56dd3-081a-2469-c3a4-dfc1ca4c6c2d@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-01docs: scheduler: Fix outdated parameter of rebalance_domainsTang Yizhou1-4/+4
According to the function prototype of rebalance_domains(), its first parameter is *rq* and the document need to be updated. Signed-off-by: Tang Yizhou <tangyizhou@huawei.com> Link: https://lore.kernel.org/r/20211221031818.23186-1-tangyizhou@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-01docs/zh_CN: Add rbtree Chinese translationTang Yizhou2-1/+392
Translate core-api/rbtree.rst into Chinese. Signed-off-by: Tang Yizhou <tangyizhou@huawei.com> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/20211225015146.1535-1-tangyizhou@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs: process: submitting-patches: Clarify the Reported-by usageAndy Shevchenko1-1/+2
It's unclear from "Submitting Patches" documentation that Reported-by is not supposed to be used against new features. (It's more clear in the section 5.4 "Patch formatting and changelogs" of the "A guide to the Kernel Development Process", where it suggests that change should fix something existing in the kernel. Clarify the Reported-by usage in the "Submitting Patches". Reported-by: Florian Eckert <fe@dev.tdt.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20220127163258.48482-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: add highmem translationYanteng Si2-1/+129
Translate .../vm/highmem.rst into Chenese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/51e088d1e8659b9411534a5a3ad03d88c79a5297.1643246827.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: add free_page_reporting translationYanteng Si2-1/+39
Translate .../vm/free_page_reporting.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/4ef77c1be8319fc45b18e9f4c41986095d794562.1643246827.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: add damon api translationYanteng Si2-3/+33
Translate .../vm/damon/api.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/3d81dbc79e0f982edd68fb9dfee6f0ccb47f7710.1642230669.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: add damon design translationYanteng Si2-1/+140
Translate .../vm/damon/design.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/2685ed7d446620b260c20158685728c3adb5e0fe.1642230669.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: add damon faq translationYanteng Si2-1/+51
Translate .../vm/damon/faq.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/30507f807a835360f57bb9498c37f4c3644b33b7.1642230669.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: add damon index tronslationYanteng Si2-1/+34
1) Translate .../vm/damon/index.rst into Chinese. 2) add damon into .../zh_CN/vm/index.rst Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/8e8c7651785f1ce20766bc1b3a4fc44faedb84bb.1642230669.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: Update zh_CN/accounting/delay-accounting.rstwangyong1-32/+30
Update zh_CN/accounting/delay-accounting.rst. The document modification has been merged which refers to the following link: https://lore.kernel.org/all/1639583021-92977-1-git-send-email-wang.yong12@zte.com.cn/ Signed-off-by: wangyong <wang.yong12@zte.com.cn> Reviewed-by: Yang Yang <yang.yang29@zte.com.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/1642003482-48935-1-git-send-email-wang.yong12@zte.com.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: add balance translationYanteng Si2-1/+82
Translate .../vm/balance.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Reviewed-by: Tang Yizhou <tangyizhou@huawei.com> Link: https://lore.kernel.org/r/f1e5a6bcbee3e34fe65a56ee185d9b44daf01cab.1641866889.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs_zh_CN: add active_mm translationYanteng Si2-1/+86
Translatr .../vm/active_mm.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Alex Shi <alexs@kernel.org> Reviewed-by: Tang Yizhou <tangyizhou@huawei.com> Link: https://lore.kernel.org/r/99ba014bdd9550bad57db6c21653cb7314d7c2d8.1641866889.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: add vm/index translationYanteng Si2-1/+53
Translate ../vm/index.rst into Chinese. Signed-off-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Tang Yizhou <tangyizhou@huawei.com> Reviewed-by: Alex Shi <alexs@kernel.org> Link: https://lore.kernel.org/r/60c579b34792c4c76194c4843a695263a982b37d.1641866889.git.siyanteng@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27Documentation: core-api: entry: Add comments about nestingNicolas Saenz Julienne1-0/+18
The topic of nesting and reentrancy in the context of early entry code hasn't been addressed so far. So do it. Signed-off-by: Nicolas Saenz Julienne <nsaenzju@redhat.com> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Reviewed-by: Paul E. McKenney <paulmck@kernel.org> Link: https://lore.kernel.org/r/20220110105044.94423-2-nsaenzju@redhat.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27Documentation: Fill the gaps about entry/noinstr constraintsThomas Gleixner2-0/+269
The entry/exit handling for exceptions, interrupts, syscalls and KVM is not really documented except for some comments. Fill the gaps. Signed-off-by: Thomas Gleixner <tglx@linutronix.de Co-developed-by: Nicolas Saenz Julienne <nsaenzju@redhat.com> Signed-off-by: Nicolas Saenz Julienne <nsaenzju@redhat.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Paul E. McKenney <paulmck@kernel.org> ---- Changes since v3: - s/nointr/noinstr/ Changes since v2: - No big content changes, just style corrections, so it should be pretty clean at this stage. In the light of this, I kept Mark's Reviewed-by. - Paul's style and paragraph re-writes - Randy's style comments - Add links to transition type sections Documentation/core-api/entry.rst | 261 +++++++++++++++++++++++++++++++ Documentation/core-api/index.rst | 8 + 2 files changed, 269 insertions(+) create mode 100644 Documentation/core-api/entry.rst Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Link: https://lore.kernel.org/r/20220110105044.94423-1-nsaenzju@redhat.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: Add opp Chinese translationTang Yizhou2-1/+343
Translate power/opp.rst into Chinese. Signed-off-by: Tang Yizhou <tangyizhou@huawei.com> Reviewed-by: Alex Shi <alexs@kernel.org> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Link: https://lore.kernel.org/r/20211229024212.32752-4-tangyizhou@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: Add power/index Chinese translationTang Yizhou2-1/+56
Translate power/index.rst into Chinese. Signed-off-by: Tang Yizhou <tangyizhou@huawei.com> Reviewed-by: Alex Shi <alexs@kernel.org> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Link: https://lore.kernel.org/r/20211229024212.32752-3-tangyizhou@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/zh_CN: Cleanup index.rstTang Yizhou1-3/+3
Many */index in the Chinese index.rst are not in the same order as the English version. Put them to where they should be. Signed-off-by: Tang Yizhou <tangyizhou@huawei.com> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Link: https://lore.kernel.org/r/20211229024212.32752-2-tangyizhou@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs/vm: Fix typo in *harden*Paul Menzel1-1/+1
Fixes: df4e817b7108 ("mm: page table check") Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Link: https://lore.kernel.org/r/20220117111338.115455-1-pmenzel@molgen.mpg.de Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27Documentation: arm: marvell: Extend Avanta listPali Rohár1-0/+2
Include another two SoCs from Avanta family. Signed-off-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20220121115804.28824-1-pali@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs: fix typo in Documentation/kernel-hacking/locking.rstTakahiro Itazuri1-1/+1
Change copy_from_user*( to copy_from_user() . Signed-off-by: Takahiro Itazuri <itazur@amazon.com> Link: https://lore.kernel.org/r/20220124081447.34066-1-itazur@amazon.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-27docs: Hook the RTLA documents into the kernel docs buildJonathan Corbet3-0/+47
The RTLA documents were added to Documentation/ but never hooked into the rest of the docs build, leading to a bunch of warnings like: Documentation/tools/rtla/rtla-osnoise.rst: WARNING: document isn't included in any toctree Add some basic glue to wire these documents into the build so that they are available with the rest of the rendered docs. No attempt has been made to turn the RTLA docs into proper RST files rather than warmed-over man pages; that is an exercise for the future. Fixes: d40d48e1f1f2 ("rtla: Add Documentation") Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/877dau555q.fsf@meer.lwn.net Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-01-23Linux 5.17-rc1Linus Torvalds1-2/+2
2022-01-23ftrace: Fix assuming build time sort works for s390Steven Rostedt (Google)2-3/+10
To speed up the boot process, as mcount_loc needs to be sorted for ftrace to work properly, sorting it at build time is more efficient than boot up and can save milliseconds of time. Unfortunately, this change broke s390 as it will modify the mcount_loc location after the sorting takes place and will put back the unsorted locations. Since the sorting is skipped at boot up if it is believed that it was sorted at run time, ftrace can crash as its algorithms are dependent on the list being sorted. Add a new config BUILDTIME_MCOUNT_SORT that is set when BUILDTIME_TABLE_SORT but not if S390 is set. Use this config to determine if sorting should take place at boot up. Link: https://lore.kernel.org/all/yt9dee51ctfn.fsf@linux.ibm.com/ Fixes: 72b3942a173c ("scripts: ftrace - move the sort-processing in ftrace_init") Reported-by: Sven Schnelle <svens@linux.ibm.com> Tested-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-01-22perf tools: Remove redundant err variableMinghao Chi1-4/+1
Return value from perf_event__process_tracing_data() directly instead of taking this in another redundant variable. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lore.kernel.org/lkml/20220112080109.666800-1-chi.minghao@zte.com.cn Signed-off-by: CGEL ZTE <cgel.zte@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-01-22perf test: Add parse-events test for aliases with hyphensJohn Garry2-9/+82
Add a test which allows us to test parsing an event alias with hyphens. Since these events typically do not exist on most host systems, add the alias to the fake pmu. Function perf_pmu__test_parse_init() has terms added to match known test aliases. Signed-off-by: John Garry <john.garry@huawei.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Qi Liu <liuqi115@huawei.com> Cc: Shaokun Zhang <zhangshaokun@hisilicon.com> Cc: linuxarm@huawei.com Link: https://lore.kernel.org/r/1642432215-234089-4-git-send-email-john.garry@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>