On Thu, Jul 27, 2023 at 08:35:10PM -0700, Paul E. McKenney wrote: Hello! This series provides a /proc interface parallel to /proc/cmdline that provides only those kernel boot parameters that were provided by the bootloader in a new /proc/cmdline_load. This is especially important when these parameters are presented to the boot loader by automation that might gather them from diverse sources, and also when a kexec-based reboot process pulls the kernel boot parameters from /proc. If such a reboot process uses /proc/cmdline, the kernel parameters from the image are replicated on every reboot, which can be frustrating when the new kernel has different embedded kernel boot parameters. Why put these in /proc? Because they is quite similar to /proc/cmdline, so it makes sense to put it in the same place that /proc/cmdline is located. 1. Update /proc/cmdline documentation to include boot config. 2. fs/proc: Add /proc/cmdline_load for boot loader arguments. 3. Add /proc/bootconfig to proc.rst. Changes since v1: o Dropped /proc/cmdline_image in favor of the existing /proc/bootconfig. o Pulled in fixes from Stephen and Arnd. o Added documentation for /proc/bootconfig. Thanx, Paul ------------------------------------------------------------------------ Documentation/filesystems/proc.rst | 2 ++ b/Documentation/filesystems/proc.rst | 3 ++- b/fs/proc/cmdline.c | 13 +++++++++++++ b/include/linux/init.h | 3 ++- b/init/main.c | 2 +- 5 files changed, 20 insertions(+), 3 deletions(-)
