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authorJay Vosburgh <fubar@us.ibm.com>2008-05-17 21:10:07 -0700
committerJeff Garzik <jgarzik@redhat.com>2008-05-22 06:34:17 -0400
commit5ce0da8f0386b62345312ec8fed31303732f4220 (patch)
tree001fb0e4f6b256f07851936f74d0805f931b63e8 /drivers
parentd63ddcec20f59e78212aeaf5144e9652c0097211 (diff)
bonding: Use msecs_to_jiffies, eliminate panic
Convert bonding to use msecs_to_jiffies instead of doing the math. For the ARP monitor, there was an underflow problem that could result in an infinite loop. The miimon already had that worked around, but this is cleaner. Originally by Nicolas de Pesloüan <nicolas.2p.debian@free.fr> Jay Vosburgh corrected a math error in the original; Nicolas' original commit message is: When setting arp_interval parameter to a very low value, delta_in_ticks for next arp might become 0, causing an infinite loop. See http://bugzilla.kernel.org/show_bug.cgi?id=10680 Same problem for miimon parameter already fixed, but fix might be enhanced, by using msecs_to_jiffies() function. Signed-off-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/bonding/bond_main.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 50a40e43315..12c71582f4f 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2397,7 +2397,7 @@ void bond_mii_monitor(struct work_struct *work)
read_lock(&bond->lock);
}
- delay = ((bond->params.miimon * HZ) / 1000) ? : 1;
+ delay = msecs_to_jiffies(bond->params.miimon);
read_unlock(&bond->lock);
queue_delayed_work(bond->wq, &bond->mii_work, delay);
}
@@ -2707,7 +2707,7 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
read_lock(&bond->lock);
- delta_in_ticks = (bond->params.arp_interval * HZ) / 1000;
+ delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval);
if (bond->kill_timers) {
goto out;
@@ -2837,7 +2837,7 @@ void bond_activebackup_arp_mon(struct work_struct *work)
read_lock(&bond->lock);
- delta_in_ticks = (bond->params.arp_interval * HZ) / 1000;
+ delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval);
if (bond->kill_timers) {
goto out;