diff options
| author | Dave Young <dyoung@redhat.com> | 2012-02-01 10:33:14 +0800 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2012-03-26 12:50:50 +1030 |
| commit | 02608bef8f774c058779546926889a2f2717a499 (patch) | |
| tree | fdbdd5918c0d9a9f142c6c88535a2b18f13ce02c | |
| parent | e22057c8599373e5caef0bc42bdb95d2a361ab0d (diff) | |
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>
| -rw-r--r-- | Documentation/kernel-parameters.txt | 2 | ||||
| -rw-r--r-- | kernel/module.c | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 58eac231fe6..e2f8c297a8a 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 2c932760fd3..7e31da9750c 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); |