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docs: Fix reST markup when linking to sections

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During the process of converting the documentation to reST, some links
were converted using the following wrong syntax (and sometimes using %20
instead of spaces):

   `Display text <#section-name-in-html>`__

This syntax isn't valid according to the docutils' spec [1], but more
importantly, it is specific to HTML, since it uses '#' to link to an
HTML anchor.

The right syntax would instead use a docutils hyperlink reference as the
embedded URI to point to the section [2], that is:

   `Display text <Section Name_>`__

This syntax works in both HTML and PDF.

The LaTeX toolchain doesn't mind the HTML anchor syntax when generating
the pdf documentation (make pdfdocs), that is, the build succeeds but
the links don't work, but that syntax causes errors when trying to build
using the not-yet-merged rst2pdf:

   ValueError: format not resolved, probably missing URL scheme or undefined destination target for 'Forcing%20Quiescent%20States'

So, use the correct syntax in order to have it work in all different
output formats.

[1]: https://docutils.sourceforge.io/docs/ref/rst/restructuredtext.html#reference-names
[2]: https://docutils.sourceforge.io/docs/ref/rst/restructuredtext.html#embedded-uris-and-aliases

Fixes: ccc9971e21 ("docs: rcu: convert some articles from html to ReST")
Fixes: c8cce10a62 ("docs: Fix the reference labels in Locking.rst")
Fixes: e548cdeffc ("docs-rst: convert kernel-locking to ReST")
Fixes: 7ddedebb03 ("ALSA: doc: ReSTize writing-an-alsa-driver document")
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20201228144537.135353-1-nfraprado@protonmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Nícolas F. R. A. Prado
2020-12-28 14:46:07 +00:00
committed by Jonathan Corbet
parent 5c8fe583cc
commit 4f8af077a0
4 changed files with 26 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
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@@ -473,7 +473,7 @@ read-side critical sections that follow the idle period (the oval near
the bottom of the diagram above).
Plumbing this into the full grace-period execution is described
`below <#Forcing%20Quiescent%20States>`__.
`below <Forcing Quiescent States_>`__.
CPU-Hotplug Interface
^^^^^^^^^^^^^^^^^^^^^
@@ -494,7 +494,7 @@ mask to detect CPUs having gone offline since the beginning of this
grace period.
Plumbing this into the full grace-period execution is described
`below <#Forcing%20Quiescent%20States>`__.
`below <Forcing Quiescent States_>`__.
Forcing Quiescent States
^^^^^^^^^^^^^^^^^^^^^^^^
@@ -532,7 +532,7 @@ from other CPUs.
| RCU. But this diagram is complex enough as it is, so simplicity |
| overrode accuracy. You can think of it as poetic license, or you can |
| think of it as misdirection that is resolved in the |
| `stitched-together diagram <#Putting%20It%20All%20Together>`__. |
| `stitched-together diagram <Putting It All Together_>`__. |
+-----------------------------------------------------------------------+
Grace-Period Cleanup
@@ -596,7 +596,7 @@ maintain ordering. For example, if the callback function wakes up a task
that runs on some other CPU, proper ordering must in place in both the
callback function and the task being awakened. To see why this is
important, consider the top half of the `grace-period
cleanup <#Grace-Period%20Cleanup>`__ diagram. The callback might be
cleanup`_ diagram. The callback might be
running on a CPU corresponding to the leftmost leaf ``rcu_node``
structure, and awaken a task that is to run on a CPU corresponding to
the rightmost leaf ``rcu_node`` structure, and the grace-period kernel