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| author |   Eric Dumazet <edumazet@google.com> | 2022-06-08 08:46:33 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-06-09 21:53:10 -0700 |
| commit | 5665f48ef309d0189e97353a294b54af5d4a726c (patch) | |
| tree | 7e6780c3883aa7d459f72cb3890dba9b12377f89 /drivers/net/ipvlan/ipvlan_main.c | |
| parent | vlan: adopt u64_stats_t (diff) | |
| download | linux-dev-5665f48ef309d0189e97353a294b54af5d4a726c.tar.xz linux-dev-5665f48ef309d0189e97353a294b54af5d4a726c.zip | |
ipvlan: adopt u64_stats_t
As explained in commit 316580b69d0a ("u64_stats: provide u64_stats_t type")
we should use u64_stats_t and related accessors to avoid load/store tearing.
Add READ_ONCE() when reading rx_errs & tx_drps.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ipvlan/ipvlan_main.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index aa28a29e228c..49ba8a50dfb1 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -224,8 +224,8 @@ static netdev_tx_t ipvlan_start_xmit(struct sk_buff *skb, pcptr = this_cpu_ptr(ipvlan->pcpu_stats); u64_stats_update_begin(&pcptr->syncp); - pcptr->tx_pkts++; - pcptr->tx_bytes += skblen; + u64_stats_inc(&pcptr->tx_pkts); + u64_stats_add(&pcptr->tx_bytes, skblen); u64_stats_update_end(&pcptr->syncp); } else { this_cpu_inc(ipvlan->pcpu_stats->tx_drps); @@ -300,11 +300,11 @@ static void ipvlan_get_stats64(struct net_device *dev, pcptr = per_cpu_ptr(ipvlan->pcpu_stats, idx); do { strt= u64_stats_fetch_begin_irq(&pcptr->syncp); - rx_pkts = pcptr->rx_pkts; - rx_bytes = pcptr->rx_bytes; - rx_mcast = pcptr->rx_mcast; - tx_pkts = pcptr->tx_pkts; - tx_bytes = pcptr->tx_bytes; + rx_pkts = u64_stats_read(&pcptr->rx_pkts); + rx_bytes = u64_stats_read(&pcptr->rx_bytes); + rx_mcast = u64_stats_read(&pcptr->rx_mcast); + tx_pkts = u64_stats_read(&pcptr->tx_pkts); + tx_bytes = u64_stats_read(&pcptr->tx_bytes); } while (u64_stats_fetch_retry_irq(&pcptr->syncp, strt)); @@ -315,8 +315,8 @@ static void ipvlan_get_stats64(struct net_device *dev, s->tx_bytes += tx_bytes; /* u32 values are updated without syncp protection. */ - rx_errs += pcptr->rx_errs; - tx_drps += pcptr->tx_drps; + rx_errs += READ_ONCE(pcptr->rx_errs); + tx_drps += READ_ONCE(pcptr->tx_drps); } s->rx_errors = rx_errs; s->rx_dropped = rx_errs; |