Convert bonding timers to workqueues

	Convert bonding timers to workqueues.  This converts the various
monitor functions to run in periodic work queues instead of timers.  This
patch introduces the framework and convers the calls, but does not resolve
various locking issues, and does not stand alone.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 20 insertions, 43 deletions

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 855dc10..19d970e 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -662,12 +662,9 @@ static ssize_t bonding_store_arp_interval(struct device *d,
 		       "%s Disabling MII monitoring.\n",
 		       bond->dev->name, bond->dev->name);
 		bond->params.miimon = 0;
-		/* Kill MII timer, else it brings bond's link down */
-		if (bond->arp_timer.function) {
-			printk(KERN_INFO DRV_NAME
-			": %s: Kill MII timer, else it brings bond's link down...\n",
-		       bond->dev->name);
-			del_timer_sync(&bond->mii_timer);
+		if (delayed_work_pending(&bond->mii_work)) {
+			cancel_delayed_work(&bond->mii_work);
+			flush_workqueue(bond->wq);
 		}
 	}
 	if (!bond->params.arp_targets[0]) {
@@ -682,25 +679,15 @@ static ssize_t bonding_store_arp_interval(struct device *d,
 		 * timer will get fired off when the open function
 		 * is called.
 		 */
-		if (bond->arp_timer.function) {
-			/* The timer's already set up, so fire it off */
-			mod_timer(&bond->arp_timer, jiffies + 1);
-		} else {
-			/* Set up the timer. */
-			init_timer(&bond->arp_timer);
-			bond->arp_timer.expires = jiffies + 1;
-			bond->arp_timer.data =
-				(unsigned long) bond->dev;
-			if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) {
-				bond->arp_timer.function =
-					(void *)
-					&bond_activebackup_arp_mon;
-			} else {
-				bond->arp_timer.function =
-					(void *)
-					&bond_loadbalance_arp_mon;
-			}
-			add_timer(&bond->arp_timer);
+		if (!delayed_work_pending(&bond->arp_work)) {
+			if (bond->params.mode == BOND_MODE_ACTIVEBACKUP)
+				INIT_DELAYED_WORK(&bond->arp_work,
+						  bond_activebackup_arp_mon);
+			else
+				INIT_DELAYED_WORK(&bond->arp_work,
+						  bond_loadbalance_arp_mon);
+
+			queue_delayed_work(bond->wq, &bond->arp_work, 0);
 		}
 	}
 
@@ -1056,12 +1043,9 @@ static ssize_t bonding_store_miimon(struct device *d,
 				bond->params.arp_validate =
 					BOND_ARP_VALIDATE_NONE;
 			}
-			/* Kill ARP timer, else it brings bond's link down */
-			if (bond->mii_timer.function) {
-				printk(KERN_INFO DRV_NAME
-				": %s: Kill ARP timer, else it brings bond's link down...\n",
-			       bond->dev->name);
-				del_timer_sync(&bond->arp_timer);
+			if (delayed_work_pending(&bond->arp_work)) {
+				cancel_delayed_work(&bond->arp_work);
+				flush_workqueue(bond->wq);
 			}
 		}
 
@@ -1071,18 +1055,11 @@ static ssize_t bonding_store_miimon(struct device *d,
 			 * timer will get fired off when the open function
 			 * is called.
 			 */
-			if (bond->mii_timer.function) {
-				/* The timer's already set up, so fire it off */
-				mod_timer(&bond->mii_timer, jiffies + 1);
-			} else {
-				/* Set up the timer. */
-				init_timer(&bond->mii_timer);
-				bond->mii_timer.expires = jiffies + 1;
-				bond->mii_timer.data =
-					(unsigned long) bond->dev;
-				bond->mii_timer.function =
-					(void *) &bond_mii_monitor;
-				add_timer(&bond->mii_timer);
+			if (!delayed_work_pending(&bond->mii_work)) {
+				INIT_DELAYED_WORK(&bond->mii_work,
+						  bond_mii_monitor);
+				queue_delayed_work(bond->wq,
+						   &bond->mii_work, 0);
 			}
 		}
 	}