diff options
| author | Sorin Dumitru <sorin@returnze.ro> | 2015-05-26 10:42:04 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-27 20:33:21 +0300 |
| commit | 14e1d0fa97f821b42e8683500cf4ec817bb5d940 (patch) | |
| tree | 213d748de6b02020fa76c0cf9309755a798f4fd1 /drivers/net/vxlan.c | |
| parent | 07f4c90062f8fc7c8c26f8f95324cbe8fa3145a5 (diff) | |
| download | linux-14e1d0fa97f821b42e8683500cf4ec817bb5d940.tar.xz | |
vxlan: release lock after each bucket in vxlan_cleanup
We're seeing some softlockups from this function when there
are a lot fdb entries on a vxlan device. Taking the lock for
each bucket instead of the whole table is enough to fix that.
Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 5eddbc02c6c2..34c519eb1db5 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -2131,9 +2131,10 @@ static void vxlan_cleanup(unsigned long arg) if (!netif_running(vxlan->dev)) return; - spin_lock_bh(&vxlan->hash_lock); for (h = 0; h < FDB_HASH_SIZE; ++h) { struct hlist_node *p, *n; + + spin_lock_bh(&vxlan->hash_lock); hlist_for_each_safe(p, n, &vxlan->fdb_head[h]) { struct vxlan_fdb *f = container_of(p, struct vxlan_fdb, hlist); @@ -2152,8 +2153,8 @@ static void vxlan_cleanup(unsigned long arg) } else if (time_before(timeout, next_timer)) next_timer = timeout; } + spin_unlock_bh(&vxlan->hash_lock); } - spin_unlock_bh(&vxlan->hash_lock); mod_timer(&vxlan->age_timer, next_timer); } |