tasklets: new tasklet scheduling function

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / softirq.c

diff --git a/kernel/softirq.c b/kernel/softirq.c
index 258885a543db60692a695aa682abb6c95f3ffcdf..b41fb710e114f5d233c18c37b0e0aee9344fa7d8 100644 (file)
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -382,6 +382,17 @@ void __tasklet_hi_schedule(struct tasklet_struct *t)
 
 EXPORT_SYMBOL(__tasklet_hi_schedule);
 
+void __tasklet_hi_schedule_first(struct tasklet_struct *t)
+{
+       BUG_ON(!irqs_disabled());
+
+       t->next = __get_cpu_var(tasklet_hi_vec).head;
+       __get_cpu_var(tasklet_hi_vec).head = t;
+       __raise_softirq_irqoff(HI_SOFTIRQ);
+}
+
+EXPORT_SYMBOL(__tasklet_hi_schedule_first);
+
 static void tasklet_action(struct softirq_action *a)
 {
        struct tasklet_struct *list;