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authorDmitry Torokhov <dtor_core@ameritech.net>2005-06-01 02:38:12 -0500
committerDmitry Torokhov <dtor_core@ameritech.net>2005-06-01 02:38:12 -0500
commita9180ab2e21b0c0ffcec7461c3a52ab7608d023a (patch)
treef4994ab5ca4a60b4e57141536bc01794bab7d461 /drivers
parent9d5432979951c8761c2b4517007039b9bcc1c110 (diff)
Input: switch serio core to using kthread API instead of using
daemonize() and signals. This way kseriod will never be accidentially killed. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/serio/serio.c27
1 files changed, 10 insertions, 17 deletions
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 0beacb77ee1..2c93ceab831 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -31,10 +31,9 @@
#include <linux/serio.h>
#include <linux/errno.h>
#include <linux/wait.h>
-#include <linux/completion.h>
#include <linux/sched.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
+#include <linux/kthread.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Serio abstraction core");
@@ -138,8 +137,7 @@ struct serio_event {
static DEFINE_SPINLOCK(serio_event_lock); /* protects serio_event_list */
static LIST_HEAD(serio_event_list);
static DECLARE_WAIT_QUEUE_HEAD(serio_wait);
-static DECLARE_COMPLETION(serio_exited);
-static int serio_pid;
+static struct task_struct *serio_task;
static void serio_queue_event(void *object, struct module *owner,
enum serio_event_type event_type)
@@ -337,20 +335,15 @@ static struct serio *serio_get_pending_child(struct serio *parent)
static int serio_thread(void *nothing)
{
- lock_kernel();
- daemonize("kseriod");
- allow_signal(SIGTERM);
-
do {
serio_handle_events();
- wait_event_interruptible(serio_wait, !list_empty(&serio_event_list));
+ wait_event_interruptible(serio_wait,
+ kthread_should_stop() || !list_empty(&serio_event_list));
try_to_freeze(PF_FREEZE);
- } while (!signal_pending(current));
+ } while (!kthread_should_stop());
printk(KERN_DEBUG "serio: kseriod exiting\n");
-
- unlock_kernel();
- complete_and_exit(&serio_exited, 0);
+ return 0;
}
@@ -848,9 +841,10 @@ irqreturn_t serio_interrupt(struct serio *serio,
static int __init serio_init(void)
{
- if (!(serio_pid = kernel_thread(serio_thread, NULL, CLONE_KERNEL))) {
+ serio_task = kthread_run(serio_thread, NULL, "kseriod");
+ if (IS_ERR(serio_task)) {
printk(KERN_ERR "serio: Failed to start kseriod\n");
- return -1;
+ return PTR_ERR(serio_task);
}
serio_bus.dev_attrs = serio_device_attrs;
@@ -866,8 +860,7 @@ static int __init serio_init(void)
static void __exit serio_exit(void)
{
bus_unregister(&serio_bus);
- kill_proc(serio_pid, SIGTERM, 1);
- wait_for_completion(&serio_exited);
+ kthread_stop(serio_task);
}
module_init(serio_init);