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author | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-06-01 07:38:12 (GMT) |
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committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-06-01 07:38:12 (GMT) |
commit | a9180ab2e21b0c0ffcec7461c3a52ab7608d023a (patch) | |
tree | f4994ab5ca4a60b4e57141536bc01794bab7d461 /drivers/input | |
parent | 9d5432979951c8761c2b4517007039b9bcc1c110 (diff) | |
download | linux-fsl-qoriq-a9180ab2e21b0c0ffcec7461c3a52ab7608d023a.tar.xz |
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/input')
-rw-r--r-- | drivers/input/serio/serio.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index 0beacb7..2c93cea 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); |