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A handful of relatively boring documentation fixes.

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Merge tag 'docs-6.8-fixes' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of relatively boring documentation fixes"

* tag 'docs-6.8-fixes' of git://git.lwn.net/linux:
  docs: admin-guide: remove obsolete advice related to SLAB allocator
  doc: admin-guide/kernel-parameters: remove useless comment
  docs/accel: correct links to mailing list archives
  docs/sphinx: Fix TOC scroll hack for the home page
This commit is contained in:
Linus Torvalds 2024-01-26 14:51:41 -08:00
commit 70da22eb63
4 changed files with 11 additions and 18 deletions
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4
Documentation/accel/introduction.rst
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@ -101,8 +101,8 @@ External References
email threads
-------------
* `Initial discussion on the New subsystem for acceleration devices <https://lkml.org/lkml/2022/7/31/83>`_ - Oded Gabbay (2022)
* `patch-set to add the new subsystem <https://lkml.org/lkml/2022/10/22/544>`_ - Oded Gabbay (2022)
* `Initial discussion on the New subsystem for acceleration devices <https://lore.kernel.org/lkml/CAFCwf11=9qpNAepL7NL+YAV_QO=Wv6pnWPhKHKAepK3fNn+2Dg@mail.gmail.com/>`_ - Oded Gabbay (2022)
* `patch-set to add the new subsystem <https://lore.kernel.org/lkml/20221022214622.18042-1-ogabbay@kernel.org/>`_ - Oded Gabbay (2022)
Conference talks
----------------

5
Documentation/admin-guide/kernel-parameters.rst
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@ -218,8 +218,3 @@ bytes respectively. Such letter suffixes can also be entirely omitted:
.. include:: kernel-parameters.txt
:literal:
Todo
----
Add more DRM drivers.

16
Documentation/admin-guide/kernel-per-CPU-kthreads.rst
View File

@ -243,13 +243,9 @@ To reduce its OS jitter, do any of the following:
3. Do any of the following needed to avoid jitter that your
application cannot tolerate:
a. Build your kernel with CONFIG_SLUB=y rather than
CONFIG_SLAB=y, thus avoiding the slab allocator's periodic
use of each CPU's workqueues to run its cache_reap()
function.
b. Avoid using oprofile, thus avoiding OS jitter from
a. Avoid using oprofile, thus avoiding OS jitter from
wq_sync_buffer().
c. Limit your CPU frequency so that a CPU-frequency
b. Limit your CPU frequency so that a CPU-frequency
governor is not required, possibly enlisting the aid of
special heatsinks or other cooling technologies. If done
correctly, and if you CPU architecture permits, you should
@ -259,7 +255,7 @@ To reduce its OS jitter, do any of the following:
WARNING: Please check your CPU specifications to
make sure that this is safe on your particular system.
d. As of v3.18, Christoph Lameter's on-demand vmstat workers
c. As of v3.18, Christoph Lameter's on-demand vmstat workers
commit prevents OS jitter due to vmstat_update() on
CONFIG_SMP=y systems. Before v3.18, is not possible
to entirely get rid of the OS jitter, but you can
@ -274,7 +270,7 @@ To reduce its OS jitter, do any of the following:
(based on an earlier one from Gilad Ben-Yossef) that
reduces or even eliminates vmstat overhead for some
workloads at https://lore.kernel.org/r/00000140e9dfd6bd-40db3d4f-c1be-434f-8132-7820f81bb586-000000@email.amazonses.com.
e. If running on high-end powerpc servers, build with
d. If running on high-end powerpc servers, build with
CONFIG_PPC_RTAS_DAEMON=n. This prevents the RTAS
daemon from running on each CPU every second or so.
(This will require editing Kconfig files and will defeat
@ -282,12 +278,12 @@ To reduce its OS jitter, do any of the following:
due to the rtas_event_scan() function.
WARNING: Please check your CPU specifications to
make sure that this is safe on your particular system.
f. If running on Cell Processor, build your kernel with
e. If running on Cell Processor, build your kernel with
CBE_CPUFREQ_SPU_GOVERNOR=n to avoid OS jitter from
spu_gov_work().
WARNING: Please check your CPU specifications to
make sure that this is safe on your particular system.
g. If running on PowerMAC, build your kernel with
f. If running on PowerMAC, build your kernel with
CONFIG_PMAC_RACKMETER=n to disable the CPU-meter,
avoiding OS jitter from rackmeter_do_timer().

4
Documentation/sphinx/templates/kernel-toc.html
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@ -12,5 +12,7 @@
<script type="text/javascript"> <!--
var sbar = document.getElementsByClassName("sphinxsidebar")[0];
let currents = document.getElementsByClassName("current")
sbar.scrollTop = currents[currents.length - 1].offsetTop;
if (currents.length) {
sbar.scrollTop = currents[currents.length - 1].offsetTop;
}
--> </script>