]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
kernel/watchdog.c: convert {soft/hard}lockup boot parameters to sysctl aliases
authorGuilherme G. Piccoli <gpiccoli@canonical.com>
Mon, 8 Jun 2020 04:40:42 +0000 (21:40 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 8 Jun 2020 18:05:56 +0000 (11:05 -0700)
commitf117955a2255721a6a0e9cecf6cad3a6eb43cbc3
treee39ebf40c91f2eda1bf92efa18c5678ad8870803
parent4f2f682d89d83fb6194562321d875253282d8496
kernel/watchdog.c: convert {soft/hard}lockup boot parameters to sysctl aliases

After a recent change introduced by Vlastimil's series [0], kernel is
able now to handle sysctl parameters on kernel command line; also, the
series introduced a simple infrastructure to convert legacy boot
parameters (that duplicate sysctls) into sysctl aliases.

This patch converts the watchdog parameters softlockup_panic and
{hard,soft}lockup_all_cpu_backtrace to use the new alias infrastructure.
It fixes the documentation too, since the alias only accepts values 0 or
1, not the full range of integers.

We also took the opportunity here to improve the documentation of the
previously converted hung_task_panic (see the patch series [0]) and put
the alias table in alphabetical order.

[0] http://lkml.kernel.org/r/20200427180433.7029-1-vbabka@suse.cz

Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Kees Cook <keescook@chromium.org>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Link: http://lkml.kernel.org/r/20200507214624.21911-1-gpiccoli@canonical.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/admin-guide/kernel-parameters.txt
fs/proc/proc_sysctl.c
kernel/watchdog.c