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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-07-29 21:09:39 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-07-29 21:09:39 -0300
commit73bcc49959e4e40911dd0dd634bf1b353827df66 (patch)
tree6b0c1d440c490a65c51ab5cf5aee7095cb4089d3 /drivers/net/virtio_net.c
parent8447c4d15e357a458c9051ddc84aa6c8b9c27000 (diff)
parent28a33cbc24e4256c143dce96c7d93bf423229f92 (diff)
Merge tag 'v3.5'
Linux 3.5 * tag 'v3.5': (1242 commits) Linux 3.5 Remove SYSTEM_SUSPEND_DISK system state kdb: Switch to nolock variants of kmsg_dump functions printk: Implement some unlocked kmsg_dump functions printk: Remove kdb_syslog_data kdb: Revive dmesg command dm raid1: set discard_zeroes_data_unsupported dm thin: do not send discards to shared blocks dm raid1: fix crash with mirror recovery and discard pnfs-obj: Fix __r4w_get_page when offset is beyond i_size pnfs-obj: don't leak objio_state if ore_write/read fails ore: Unlock r4w pages in exact reverse order of locking ore: Remove support of partial IO request (NFS crash) ore: Fix NFS crash by supporting any unaligned RAID IO UBIFS: fix a bug in empty space fix-up cx25821: Remove bad strcpy to read-only char* HID: hid-multitouch: add support for Zytronic panels MIPS: PCI: Move fixups from __init to __devinit. MIPS: Fix bug.h MIPS build regression MIPS: sync-r4k: remove redundant irq operation ...
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 5214b1eceb9..f18149ae258 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -42,7 +42,8 @@ module_param(gso, bool, 0444);
#define VIRTNET_DRIVER_VERSION "1.0.0"
struct virtnet_stats {
- struct u64_stats_sync syncp;
+ struct u64_stats_sync tx_syncp;
+ struct u64_stats_sync rx_syncp;
u64 tx_bytes;
u64 tx_packets;
@@ -300,10 +301,10 @@ static void receive_buf(struct net_device *dev, void *buf, unsigned int len)
hdr = skb_vnet_hdr(skb);
- u64_stats_update_begin(&stats->syncp);
+ u64_stats_update_begin(&stats->rx_syncp);
stats->rx_bytes += skb->len;
stats->rx_packets++;
- u64_stats_update_end(&stats->syncp);
+ u64_stats_update_end(&stats->rx_syncp);
if (hdr->hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) {
pr_debug("Needs csum!\n");
@@ -565,10 +566,10 @@ static unsigned int free_old_xmit_skbs(struct virtnet_info *vi)
while ((skb = virtqueue_get_buf(vi->svq, &len)) != NULL) {
pr_debug("Sent skb %p\n", skb);
- u64_stats_update_begin(&stats->syncp);
+ u64_stats_update_begin(&stats->tx_syncp);
stats->tx_bytes += skb->len;
stats->tx_packets++;
- u64_stats_update_end(&stats->syncp);
+ u64_stats_update_end(&stats->tx_syncp);
tot_sgs += skb_vnet_hdr(skb)->num_sg;
dev_kfree_skb_any(skb);
@@ -703,12 +704,16 @@ static struct rtnl_link_stats64 *virtnet_stats(struct net_device *dev,
u64 tpackets, tbytes, rpackets, rbytes;
do {
- start = u64_stats_fetch_begin(&stats->syncp);
+ start = u64_stats_fetch_begin(&stats->tx_syncp);
tpackets = stats->tx_packets;
tbytes = stats->tx_bytes;
+ } while (u64_stats_fetch_retry(&stats->tx_syncp, start));
+
+ do {
+ start = u64_stats_fetch_begin(&stats->rx_syncp);
rpackets = stats->rx_packets;
rbytes = stats->rx_bytes;
- } while (u64_stats_fetch_retry(&stats->syncp, start));
+ } while (u64_stats_fetch_retry(&stats->rx_syncp, start));
tot->rx_packets += rpackets;
tot->tx_packets += tpackets;