Based on the implementation in arch/x86/kernel/acpi/sleep.c, in
particular the acpi_sleep_setup() function.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The description of panic doesn’t cover all the supported scenarios;
this patch fixes that, describing the three possibilities (no reboot,
immediate reboot, reboot after a delay).
Based on the implementation in kernel/panic.c.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This describes the SPARC-specific stop-a sysctl entry, which was
previously listed in kernel.rst but not documented.
Base on the implementation in arch/sparc/kernel/setup_{32,64}.c and
kernel/panic.c.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This adds short descriptions of msgmax, msgmnb, msgmni, and shmmni,
which were previously listed in kernel.rst but not described.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The l2cr sysctl entry was removed in commit c2f3dabefa ("sysctl:
kill binary sysctl KERN_PPC_L2CR"), this removes the corresponding
documentation.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This fits nicely in sysctl/kernel.rst, merge it (and rephrase it)
instead of linking to it.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This updates sysctl/kernel.rst to use ReStructured Text more fully:
* the list of files is now the table of contents (old entries with no
corresponding sections are added as empty sections for now);
* code references and commands are formatted as code, except for
function names which end up linked to the appropriate documentation;
* links are used to point to other documentation and other sections;
* tables are used to make lists of values more readable (as already
done for some sections);
* in heavily-reworked paragraphs, sentences are wrapped individually,
to make future diffs easier to read.
The first mention of the kernel version is dropped. The second
mention, saying that the document is accurate for 2.2, is preserved
for now; I will update that once the document really is accurate for a
current kernel release.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
There is somehow no description of %c corename format specifier for
/proc/sys/kernel/core_pattern. The %c corename format specifier is
used by user-space application such as systemd-coredump, so it should
be documented.
To find where %c is handled in the kernel source code, look at
function format_corename() in fs/coredump.c.
Signed-off-by: HATAYAMA Daisuke <d.hatayama@fujitsu.com>
Link: https://lore.kernel.org/r/TYAPR01MB4014714BB2ACE425BB6EC6B7951A0@TYAPR01MB4014.jpnprd01.prod.outlook.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Since following path was merged in 5.4-rc3,
auto-tuning feature in threads-max does not exist any more.
Fix the admin-guide document as is.
kernel/sysctl.c: do not override max_threads provided by userspace
b0f53dbc4b
Fixes: b0f53dbc4b ("kernel/sysctl.c: do not override max_threads provided by userspace")
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Since following patch was merged 5.4-rc3, minimum value for
threads-max changed to 1.
kernel/sysctl.c: do not override max_threads provided by userspace
b0f53dbc4b
Fixes: b0f53dbc4b ("kernel/sysctl.c: do not override max_threads provided by userspace")
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The printk_ratelimit value accepts seconds, not jiffies (though it is
converted into jiffies internally). Update documentation to reflect
this.
Also, remove the statement about allowing 1 message in 5 seconds since
bursts up to 10 messages are allowed by default.
Finally, while we are here, mention default value for
printk_ratelimit_burst too.
Signed-off-by: Oleksandr Natalenko <oleksandr@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Both IPX and TR have not been supported for a while now.
Remove them from the /proc/sys/net documentation.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are lots of documents that belong to the admin-guide but
are on random places (most under Documentation root dir).
Move them to the admin guide.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The docs under Documentation/laptops contain users specific
information.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
The stuff under sysctl describes /sys interface from userspace
point of view. So, add it to the admin-guide and remove the
:orphan: from its index file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
