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authorSteven Rostedt <rostedt@goodmis.org>2012-03-26 12:50:52 +1030
committerRusty Russell <rusty@rustcorp.com.au>2012-03-26 12:50:52 +1030
commitd53799be6758841e1ffb1fd3780f73d0ffe44432 (patch)
treeaad25045e0bcfe4b4e612d09a0c3abe3beb7e761 /kernel/module.c
parent026cee0086fe1df4cf74691cf273062cc769617d (diff)
downloadlinaro-lsk-d53799be6758841e1ffb1fd3780f73d0ffe44432.tar.gz
module: move __module_get and try_module_get() out of line.
With the preempt, tracepoint and everything, it's getting a bit chubby. For an Ubuntu-based config: Before: $ size -t `find * -name '*.ko'` | grep TOTAL 56199906 3870760 1606616 61677282 3ad1ee2 (TOTALS) $ size vmlinux text data bss dec hex filename 8509342 850368 3358720 12718430 c2115e vmlinux After: $ size -t `find * -name '*.ko'` | grep TOTAL 56183760 3867892 1606616 61658268 3acd49c (TOTALS) $ size vmlinux text data bss dec hex filename 8501842 849088 3358720 12709650 c1ef12 vmlinux Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (made all out-of-line)
Diffstat (limited to 'kernel/module.c')
-rw-r--r--kernel/module.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 6f6651a5459..294692d8fcd 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -904,6 +904,36 @@ static ssize_t show_refcnt(struct module_attribute *mattr,
static struct module_attribute modinfo_refcnt =
__ATTR(refcnt, 0444, show_refcnt, NULL);
+void __module_get(struct module *module)
+{
+ if (module) {
+ preempt_disable();
+ __this_cpu_inc(module->refptr->incs);
+ trace_module_get(module, _RET_IP_);
+ preempt_enable();
+ }
+}
+EXPORT_SYMBOL(__module_get);
+
+bool try_module_get(struct module *module)
+{
+ bool ret = true;
+
+ if (module) {
+ preempt_disable();
+
+ if (likely(module_is_live(module))) {
+ __this_cpu_inc(module->refptr->incs);
+ trace_module_get(module, _RET_IP_);
+ } else
+ ret = false;
+
+ preempt_enable();
+ }
+ return ret;
+}
+EXPORT_SYMBOL(try_module_get);
+
void module_put(struct module *module)
{
if (module) {