I noticed that in contrast to other kernel core parameters (e.g. kernel.panic,
kernel.panic_on_warn, kernel.panic_print) crash_kexec_post_notifiers is not
available as a sysctl tunable. I am aware that because it is a kernel core
parameter, there is already an entry under:
/sys/module/kernel/parameters/crash_kexec_post_notifiers
and that allows us to read/modify it at runtime. However, I thought it should
also be available via sysctl, since users that want to read/set this value at
runtime might look there first.
I believe there is an ongoing effort to clean up kernel/sysctl.c, but it wasn't
clear to me if this entry (and perhaps the other panic related entries too)
should be placed on kernel/panic.c. I wanted to verify first that this change
would be welcomed before doing additional refactoring work.
I'd appreciate any comments or suggestions.
Thank you,
Alejandro
Alejandro Jimenez (1):
kernel/sysctl: Add sysctl entry for crash_kexec_post_notifiers
Documentation/admin-guide/sysctl/kernel.rst | 8 ++++++++
include/uapi/linux/sysctl.h | 1 +
kernel/sysctl.c | 7 +++++++
3 files changed, 16 insertions(+)
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2.34.1