From 02608bef8f774c058779546926889a2f2717a499 Mon Sep 17 00:00:00 2001 From: Dave Young <dyoung@redhat.com> Date: Wed, 1 Feb 2012 10:33:14 +0800 Subject: [PATCH] module: add kernel param to force disable module load Sometimes we need to test a kernel of same version with code or config option changes. We already have sysctl to disable module load, but add a kernel parameter will be more convenient. Since modules_disabled is int, so here use bint type in core_param. TODO: make sysctl accept bool and change modules_disabled to bool Signed-off-by: Dave Young <dyoung@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- Documentation/kernel-parameters.txt | 2 ++ kernel/module.c | 1 + 2 files changed, 3 insertions(+) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 58eac231fe694..e2f8c297a8a4f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1869,6 +1869,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted. shutdown the other cpus. Instead use the REBOOT_VECTOR irq. + nomodule Disable module load + nopat [X86] Disable PAT (page attribute table extension of pagetables) support. diff --git a/kernel/module.c b/kernel/module.c index 2c932760fd33d..7e31da9750c08 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -105,6 +105,7 @@ struct list_head *kdb_modules = &modules; /* kdb needs the list of modules */ /* Block module loading/unloading? */ int modules_disabled = 0; +core_param(nomodule, modules_disabled, bint, 0); /* Waiting for a module to finish initializing? */ static DECLARE_WAIT_QUEUE_HEAD(module_wq); -- GitLab