Commit 02608bef authored by Dave Young's avatar Dave Young Committed by Rusty Russell

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: default avatarDave Young <>
Signed-off-by: default avatarRusty Russell <>
parent e22057c8
......@@ -1869,6 +1869,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
shutdown the other cpus. Instead use the REBOOT_VECTOR
nomodule Disable module load
nopat [X86] Disable PAT (page attribute table extension of
pagetables) support.
......@@ -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);
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