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yaml
---
r: 312030
b: refs/heads/master
c: 5dcaba7
h: refs/heads/master
v: v3
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David S. Miller committed Jul 17, 2012
1 parent 700366b commit 7df6a92
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Showing 7 changed files with 69 additions and 39 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: a52359b56c29f55aaadf1dab80a0e1043b982676
refs/heads/master: 5dcaba7ed5be7fcedde7732111f31692e2e39ef9
12 changes: 0 additions & 12 deletions trunk/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -969,8 +969,6 @@ static irqreturn_t ixgbevf_msix_clean_tx(int irq, void *data)
r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues);
for (i = 0; i < q_vector->txr_count; i++) {
tx_ring = &(adapter->tx_ring[r_idx]);
tx_ring->total_bytes = 0;
tx_ring->total_packets = 0;
ixgbevf_clean_tx_irq(adapter, tx_ring);
r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues,
r_idx + 1);
Expand All @@ -994,16 +992,6 @@ static irqreturn_t ixgbevf_msix_clean_rx(int irq, void *data)
struct ixgbe_hw *hw = &adapter->hw;
struct ixgbevf_ring *rx_ring;
int r_idx;
int i;

r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues);
for (i = 0; i < q_vector->rxr_count; i++) {
rx_ring = &(adapter->rx_ring[r_idx]);
rx_ring->total_bytes = 0;
rx_ring->total_packets = 0;
r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues,
r_idx + 1);
}

if (!q_vector->rxr_count)
return IRQ_HANDLED;
Expand Down
2 changes: 1 addition & 1 deletion trunk/net/caif/caif_dev.c
Original file line number Diff line number Diff line change
Expand Up @@ -561,9 +561,9 @@ static int __init caif_device_init(void)

static void __exit caif_device_exit(void)
{
unregister_pernet_subsys(&caif_net_ops);
unregister_netdevice_notifier(&caif_device_notifier);
dev_remove_pack(&caif_packet_type);
unregister_pernet_subsys(&caif_net_ops);
}

module_init(caif_device_init);
Expand Down
71 changes: 54 additions & 17 deletions trunk/net/core/netprio_cgroup.c
Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ static void put_prioidx(u32 idx)
spin_unlock_irqrestore(&prioidx_map_lock, flags);
}

static void extend_netdev_table(struct net_device *dev, u32 new_len)
static int extend_netdev_table(struct net_device *dev, u32 new_len)
{
size_t new_size = sizeof(struct netprio_map) +
((sizeof(u32) * new_len));
Expand All @@ -77,7 +77,7 @@ static void extend_netdev_table(struct net_device *dev, u32 new_len)

if (!new_priomap) {
pr_warn("Unable to alloc new priomap!\n");
return;
return -ENOMEM;
}

for (i = 0;
Expand All @@ -90,46 +90,79 @@ static void extend_netdev_table(struct net_device *dev, u32 new_len)
rcu_assign_pointer(dev->priomap, new_priomap);
if (old_priomap)
kfree_rcu(old_priomap, rcu);
return 0;
}

static void update_netdev_tables(void)
static int write_update_netdev_table(struct net_device *dev)
{
int ret = 0;
u32 max_len;
struct netprio_map *map;

rtnl_lock();
max_len = atomic_read(&max_prioidx) + 1;
map = rtnl_dereference(dev->priomap);
if (!map || map->priomap_len < max_len)
ret = extend_netdev_table(dev, max_len);
rtnl_unlock();

return ret;
}

static int update_netdev_tables(void)
{
int ret = 0;
struct net_device *dev;
u32 max_len = atomic_read(&max_prioidx) + 1;
u32 max_len;
struct netprio_map *map;

rtnl_lock();
max_len = atomic_read(&max_prioidx) + 1;
for_each_netdev(&init_net, dev) {
map = rtnl_dereference(dev->priomap);
if ((!map) ||
(map->priomap_len < max_len))
extend_netdev_table(dev, max_len);
/*
* don't allocate priomap if we didn't
* change net_prio.ifpriomap (map == NULL),
* this will speed up skb_update_prio.
*/
if (map && map->priomap_len < max_len) {
ret = extend_netdev_table(dev, max_len);
if (ret < 0)
break;
}
}
rtnl_unlock();
return ret;
}

static struct cgroup_subsys_state *cgrp_create(struct cgroup *cgrp)
{
struct cgroup_netprio_state *cs;
int ret;
int ret = -EINVAL;

cs = kzalloc(sizeof(*cs), GFP_KERNEL);
if (!cs)
return ERR_PTR(-ENOMEM);

if (cgrp->parent && cgrp_netprio_state(cgrp->parent)->prioidx) {
kfree(cs);
return ERR_PTR(-EINVAL);
}
if (cgrp->parent && cgrp_netprio_state(cgrp->parent)->prioidx)
goto out;

ret = get_prioidx(&cs->prioidx);
if (ret != 0) {
if (ret < 0) {
pr_warn("No space in priority index array\n");
kfree(cs);
return ERR_PTR(ret);
goto out;
}

ret = update_netdev_tables();
if (ret < 0) {
put_prioidx(cs->prioidx);
goto out;
}

return &cs->css;
out:
kfree(cs);
return ERR_PTR(ret);
}

static void cgrp_destroy(struct cgroup *cgrp)
Expand Down Expand Up @@ -221,13 +254,17 @@ static int write_priomap(struct cgroup *cgrp, struct cftype *cft,
if (!dev)
goto out_free_devname;

update_netdev_tables();
ret = 0;
ret = write_update_netdev_table(dev);
if (ret < 0)
goto out_put_dev;

rcu_read_lock();
map = rcu_dereference(dev->priomap);
if (map)
map->priomap[prioidx] = priority;
rcu_read_unlock();

out_put_dev:
dev_put(dev);

out_free_devname:
Expand Down
2 changes: 1 addition & 1 deletion trunk/net/core/skbuff.c
Original file line number Diff line number Diff line change
Expand Up @@ -353,7 +353,7 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
unsigned int fragsz = SKB_DATA_ALIGN(length + NET_SKB_PAD) +
SKB_DATA_ALIGN(sizeof(struct skb_shared_info));

if (fragsz <= PAGE_SIZE && !(gfp_mask & __GFP_WAIT)) {
if (fragsz <= PAGE_SIZE && !(gfp_mask & (__GFP_WAIT | GFP_DMA))) {
void *data = netdev_alloc_frag(fragsz);

if (likely(data)) {
Expand Down
7 changes: 2 additions & 5 deletions trunk/net/sctp/input.c
Original file line number Diff line number Diff line change
Expand Up @@ -736,15 +736,12 @@ static void __sctp_unhash_endpoint(struct sctp_endpoint *ep)

epb = &ep->base;

if (hlist_unhashed(&epb->node))
return;

epb->hashent = sctp_ep_hashfn(epb->bind_addr.port);

head = &sctp_ep_hashtable[epb->hashent];

sctp_write_lock(&head->lock);
__hlist_del(&epb->node);
hlist_del_init(&epb->node);
sctp_write_unlock(&head->lock);
}

Expand Down Expand Up @@ -825,7 +822,7 @@ static void __sctp_unhash_established(struct sctp_association *asoc)
head = &sctp_assoc_hashtable[epb->hashent];

sctp_write_lock(&head->lock);
__hlist_del(&epb->node);
hlist_del_init(&epb->node);
sctp_write_unlock(&head->lock);
}

Expand Down
12 changes: 10 additions & 2 deletions trunk/net/sctp/socket.c
Original file line number Diff line number Diff line change
Expand Up @@ -1231,8 +1231,14 @@ static int __sctp_connect(struct sock* sk,
SCTP_DEBUG_PRINTK("About to exit __sctp_connect() free asoc: %p"
" kaddrs: %p err: %d\n",
asoc, kaddrs, err);
if (asoc)
if (asoc) {
/* sctp_primitive_ASSOCIATE may have added this association
* To the hash table, try to unhash it, just in case, its a noop
* if it wasn't hashed so we're safe
*/
sctp_unhash_established(asoc);
sctp_association_free(asoc);
}
return err;
}

Expand Down Expand Up @@ -1942,8 +1948,10 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
goto out_unlock;

out_free:
if (new_asoc)
if (new_asoc) {
sctp_unhash_established(asoc);
sctp_association_free(asoc);
}
out_unlock:
sctp_release_sock(sk);

Expand Down

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