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authorTom Herbert <therbert@google.com>2010-10-07 10:09:10 +0000
committerDavid S. Miller <davem@davemloft.net>2010-10-08 14:34:32 -0700
commit4315d834c1496ddca977e9e22002b77c85bfec2c (patch)
treeb5d36552a72ac630e7024d855e564e63db93bb6a /net/core
parenta131d82266e77b8eb8a2dab930a94ed0de9e91b0 (diff)
downloadop-kernel-dev-4315d834c1496ddca977e9e22002b77c85bfec2c.zip
op-kernel-dev-4315d834c1496ddca977e9e22002b77c85bfec2c.tar.gz
net: Fix rxq ref counting
The rx->count reference is used to track reference counts to the number of rx-queue kobjects created for the device. This patch eliminates initialization of the counter in netif_alloc_rx_queues and instead increments the counter each time a kobject is created. This is now symmetric with the decrement that is done when an object is released. Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c1
-rw-r--r--net/core/net-sysfs.c2
2 files changed, 2 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 4962c8a..193eafa 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5024,7 +5024,6 @@ static int netif_alloc_rx_queues(struct net_device *dev)
return -ENOMEM;
}
dev->_rx = rx;
- atomic_set(&rx->count, count);
/*
* Set a pointer to first element in the array which holds the
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index fa81fd0..b143173 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -726,6 +726,7 @@ static struct kobj_type rx_queue_ktype = {
static int rx_queue_add_kobject(struct net_device *net, int index)
{
struct netdev_rx_queue *queue = net->_rx + index;
+ struct netdev_rx_queue *first = queue->first;
struct kobject *kobj = &queue->kobj;
int error = 0;
@@ -738,6 +739,7 @@ static int rx_queue_add_kobject(struct net_device *net, int index)
}
kobject_uevent(kobj, KOBJ_ADD);
+ atomic_inc(&first->count);
return error;
}
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