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Input: make serio and gameport more swsusp friendly 

kseriod and kgameportd used to process all pending events before
checking for freeze condition. This may cause swsusp to time out
while stopping tasks when resuming. Switch to process events one
by one to check freeze status more often.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
hifive-unleashed-5.1
Dmitry Torokhov 2005-11-20 00:56:43 -05:00
parent bd0ef2356c
commit 9e50afd0cb
2 changed files with 18 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/input/gameport/gameport.c
View File

@ -339,14 +339,20 @@ static struct gameport_event *gameport_get_event(void)
return event;
}
static void gameport_handle_events(void)
static void gameport_handle_event(void)
{
struct gameport_event *event;
struct gameport_driver *gameport_drv;
down(&gameport_sem);
while ((event = gameport_get_event())) {
/*
* Note that we handle only one event here to give swsusp
* a chance to freeze kgameportd thread. Gameport events
* should be pretty rare so we are not concerned about
* taking performance hit.
*/
if ((event = gameport_get_event())) {
switch (event->type) {
case GAMEPORT_REGISTER_PORT:
@ -433,7 +439,7 @@ static struct gameport *gameport_get_pending_child(struct gameport *parent)
static int gameport_thread(void *nothing)
{
do {
gameport_handle_events();
gameport_handle_event();
wait_event_interruptible(gameport_wait,
kthread_should_stop() || !list_empty(&gameport_event_list));
try_to_freeze();

12
drivers/input/serio/serio.c
View File

@ -269,14 +269,20 @@ static struct serio_event *serio_get_event(void)
return event;
}
static void serio_handle_events(void)
static void serio_handle_event(void)
{
struct serio_event *event;
struct serio_driver *serio_drv;
down(&serio_sem);
while ((event = serio_get_event())) {
/*
* Note that we handle only one event here to give swsusp
* a chance to freeze kseriod thread. Serio events should
* be pretty rare so we are not concerned about taking
* performance hit.
*/
if ((event = serio_get_event())) {
switch (event->type) {
case SERIO_REGISTER_PORT:
@ -368,7 +374,7 @@ static struct serio *serio_get_pending_child(struct serio *parent)
static int serio_thread(void *nothing)
{
do {
serio_handle_events();
serio_handle_event();
wait_event_interruptible(serio_wait,
kthread_should_stop() || !list_empty(&serio_event_list));
try_to_freeze();