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authorArjan van de Ven <arjan@linux.intel.com>2008-07-30 12:49:02 -0700
committerRusty Russell <rusty@rustcorp.com.au>2008-08-12 17:52:54 +1000
commit59f9415ffb9759e950d775f4c400f747b332cc02 (patch)
tree354544b8cad8ae77a5f960fe601b2a3613a2523a /kernel
parent4bceba417a795b78a5146e3f85291cb7bb2402ef (diff)
modules: extend initcall_debug functionality to the module loader
The kernel has this really nice facility where if you put "initcall_debug" on the kernel commandline, it'll print which function it's going to execute just before calling an initcall, and then after the call completes it will 1) print if it had an error code 2) checks for a few simple bugs (like leaving irqs off) and 3) print how long the init call took in milliseconds. While trying to optimize the boot speed of my laptop, I have been loving number 3 to figure out what to optimize... ... and then I wished that the same thing was done for module loading. This patch makes the module loader use this exact same functionality; it's a logical extension in my view (since modules are just sort of late binding initcalls anyway) and so far I've found it quite useful in finding where things are too slow in my boot. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/module.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 61d212120df4..08864d257eb0 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2288,7 +2288,7 @@ sys_init_module(void __user *umod,
/* Start the module */
if (mod->init != NULL)
- ret = mod->init();
+ ret = do_one_initcall(mod->init);
if (ret < 0) {
/* Init routine failed: abort. Try to protect us from
buggy refcounters. */

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