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drivers/edac: mod MC to use workq instead of kthread

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Move the memory controller object to work queue based implementation from the
kernel thread based.

Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dave Jiang
2007-07-19 01:49:52 -07:00
committed by Linus Torvalds
parent 535c6a5303
commit 81d87cb13e
6 changed files with 177 additions and 97 deletions
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drivers/edac/edac_device.c
+20 -16
View File
@@ -332,17 +332,17 @@ EXPORT_SYMBOL(edac_device_find);
/*
* edac_workq_function
* edac_device_workq_function
* performs the operation scheduled by a workq request
*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
static void edac_workq_function(struct work_struct *work_req)
static void edac_device_workq_function(struct work_struct *work_req)
{
struct delayed_work *d_work = (struct delayed_work*) work_req;
struct edac_device_ctl_info *edac_dev =
to_edac_device_ctl_work(d_work);
#else
static void edac_workq_function(void *ptr)
static void edac_device_workq_function(void *ptr)
{
struct edac_device_ctl_info *edac_dev =
(struct edac_device_ctl_info *) ptr;
@@ -364,30 +364,31 @@ static void edac_workq_function(void *ptr)
}
/*
* edac_workq_setup
* edac_device_workq_setup
* initialize a workq item for this edac_device instance
* passing in the new delay period in msec
*/
void edac_workq_setup(struct edac_device_ctl_info *edac_dev, unsigned msec)
void edac_device_workq_setup(struct edac_device_ctl_info *edac_dev,
unsigned msec)
{
debugf0("%s()\n", __func__);
edac_dev->poll_msec = msec;
edac_device_calc_delay(edac_dev); /* Calc delay jiffies */
edac_calc_delay(edac_dev); /* Calc delay jiffies */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
INIT_DELAYED_WORK(&edac_dev->work,edac_workq_function);
INIT_DELAYED_WORK(&edac_dev->work, edac_device_workq_function);
#else
INIT_WORK(&edac_dev->work,edac_workq_function,edac_dev);
INIT_WORK(&edac_dev->work, edac_device_workq_function, edac_dev);
#endif
queue_delayed_work(edac_workqueue,&edac_dev->work, edac_dev->delay);
queue_delayed_work(edac_workqueue, &edac_dev->work, edac_dev->delay);
}
/*
* edac_workq_teardown
* edac_device_workq_teardown
* stop the workq processing on this edac_dev
*/
void edac_workq_teardown(struct edac_device_ctl_info *edac_dev)
void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev)
{
int status;
@@ -409,10 +410,10 @@ void edac_device_reset_delay_period(
lock_device_list();
/* cancel the current workq request */
edac_workq_teardown(edac_dev);
edac_device_workq_teardown(edac_dev);
/* restart the workq request, with new delay value */
edac_workq_setup(edac_dev, value);
edac_device_workq_setup(edac_dev, value);
unlock_device_list();
}
@@ -479,8 +480,11 @@ int edac_device_add_device(struct edac_device_ctl_info *edac_dev, int edac_idx)
/* This instance is NOW RUNNING */
edac_dev->op_state = OP_RUNNING_POLL;
/* enable workq processing on this instance, default = 1000 msec */
edac_workq_setup(edac_dev, 1000);
/*
* enable workq processing on this instance,
* default = 1000 msec
*/
edac_device_workq_setup(edac_dev, 1000);
} else {
edac_dev->op_state = OP_RUNNING_INTERRUPT;
}
@@ -538,7 +542,7 @@ struct edac_device_ctl_info * edac_device_del_device(struct device *dev)
edac_dev->op_state = OP_OFFLINE;
/* clear workq processing on this instance */
edac_workq_teardown(edac_dev);
edac_device_workq_teardown(edac_dev);
/* Tear down the sysfs entries for this instance */
edac_device_remove_sysfs(edac_dev);