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net: introduce netdev_alloc_pcpu_stats() for drivers

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There are many drivers calling alloc_percpu() to allocate pcpu stats
and then initializing ->syncp. So just introduce a helper function for them.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
WANG Cong
2014-02-13 11:46:28 -08:00
committed by David S. Miller
parent ed1acc8cd8
commit 1c213bd24a
19 changed files with 35 additions and 154 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/bridge/br_device.c
+1 -8
View File
@@ -88,18 +88,11 @@ out:
static int br_dev_init(struct net_device *dev)
{
struct net_bridge *br = netdev_priv(dev);
int i;
br->stats = alloc_percpu(struct pcpu_sw_netstats);
br->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
if (!br->stats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct pcpu_sw_netstats *br_dev_stats;
br_dev_stats = per_cpu_ptr(br->stats, i);
u64_stats_init(&br_dev_stats->syncp);
}
return 0;
}