net: Replace u64_stats_fetch_begin_bh to u64_stats_fetch_begin_irq
authorEric W. Biederman <ebiederm@xmission.com>
Fri, 14 Mar 2014 04:26:42 +0000 (21:26 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sat, 15 Mar 2014 02:41:36 +0000 (22:41 -0400)
Replace the bh safe variant with the hard irq safe variant.

We need a hard irq safe variant to deal with netpoll transmitting
packets from hard irq context, and we need it in most if not all of
the places using the bh safe variant.

Except on 32bit uni-processor the code is exactly the same so don't
bother with a bh variant, just have a hard irq safe variant that
everyone can use.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
38 files changed:
block/blk-cgroup.h
drivers/net/dummy.c
drivers/net/ethernet/broadcom/b44.c
drivers/net/ethernet/emulex/benet/be_ethtool.c
drivers/net/ethernet/emulex/benet/be_main.c
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
drivers/net/ethernet/intel/i40e/i40e_main.c
drivers/net/ethernet/intel/igb/igb_ethtool.c
drivers/net/ethernet/intel/igb/igb_main.c
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
drivers/net/ethernet/marvell/mvneta.c
drivers/net/ethernet/marvell/sky2.c
drivers/net/ethernet/neterion/vxge/vxge-main.c
drivers/net/ethernet/nvidia/forcedeth.c
drivers/net/ethernet/realtek/8139too.c
drivers/net/ethernet/realtek/r8169.c
drivers/net/ethernet/tile/tilepro.c
drivers/net/ethernet/via/via-rhine.c
drivers/net/ifb.c
drivers/net/loopback.c
drivers/net/macvlan.c
drivers/net/nlmon.c
drivers/net/team/team.c
drivers/net/team/team_mode_loadbalance.c
drivers/net/veth.c
drivers/net/virtio_net.c
drivers/net/xen-netfront.c
include/linux/u64_stats_sync.h
net/8021q/vlan_dev.c
net/bridge/br_device.c
net/ipv4/af_inet.c
net/ipv4/ip_tunnel_core.c
net/ipv6/ip6_tunnel.c
net/netfilter/ipvs/ip_vs_ctl.c
net/openvswitch/datapath.c
net/openvswitch/vport.c

index 86154ea..604f6d9 100644 (file)
@@ -435,9 +435,9 @@ static inline uint64_t blkg_stat_read(struct blkg_stat *stat)
        uint64_t v;
 
        do {
-               start = u64_stats_fetch_begin_bh(&stat->syncp);
+               start = u64_stats_fetch_begin_irq(&stat->syncp);
                v = stat->cnt;
-       } while (u64_stats_fetch_retry_bh(&stat->syncp, start));
+       } while (u64_stats_fetch_retry_irq(&stat->syncp, start));
 
        return v;
 }
@@ -508,9 +508,9 @@ static inline struct blkg_rwstat blkg_rwstat_read(struct blkg_rwstat *rwstat)
        struct blkg_rwstat tmp;
 
        do {
-               start = u64_stats_fetch_begin_bh(&rwstat->syncp);
+               start = u64_stats_fetch_begin_irq(&rwstat->syncp);
                tmp = *rwstat;
-       } while (u64_stats_fetch_retry_bh(&rwstat->syncp, start));
+       } while (u64_stats_fetch_retry_irq(&rwstat->syncp, start));
 
        return tmp;
 }
index 1656317..0932ffb 100644 (file)
@@ -63,10 +63,10 @@ static struct rtnl_link_stats64 *dummy_get_stats64(struct net_device *dev,
 
                dstats = per_cpu_ptr(dev->dstats, i);
                do {
-                       start = u64_stats_fetch_begin_bh(&dstats->syncp);
+                       start = u64_stats_fetch_begin_irq(&dstats->syncp);
                        tbytes = dstats->tx_bytes;
                        tpackets = dstats->tx_packets;
-               } while (u64_stats_fetch_retry_bh(&dstats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&dstats->syncp, start));
                stats->tx_bytes += tbytes;
                stats->tx_packets += tpackets;
        }
index 8a7bf7d..05ba625 100644 (file)
@@ -1685,7 +1685,7 @@ static struct rtnl_link_stats64 *b44_get_stats64(struct net_device *dev,
        unsigned int start;
 
        do {
-               start = u64_stats_fetch_begin_bh(&hwstat->syncp);
+               start = u64_stats_fetch_begin_irq(&hwstat->syncp);
 
                /* Convert HW stats into rtnl_link_stats64 stats. */
                nstat->rx_packets = hwstat->rx_pkts;
@@ -1719,7 +1719,7 @@ static struct rtnl_link_stats64 *b44_get_stats64(struct net_device *dev,
                /* Carrier lost counter seems to be broken for some devices */
                nstat->tx_carrier_errors = hwstat->tx_carrier_lost;
 #endif
-       } while (u64_stats_fetch_retry_bh(&hwstat->syncp, start));
+       } while (u64_stats_fetch_retry_irq(&hwstat->syncp, start));
 
        return nstat;
 }
@@ -2073,12 +2073,12 @@ static void b44_get_ethtool_stats(struct net_device *dev,
        do {
                data_src = &hwstat->tx_good_octets;
                data_dst = data;
-               start = u64_stats_fetch_begin_bh(&hwstat->syncp);
+               start = u64_stats_fetch_begin_irq(&hwstat->syncp);
 
                for (i = 0; i < ARRAY_SIZE(b44_gstrings); i++)
                        *data_dst++ = *data_src++;
 
-       } while (u64_stats_fetch_retry_bh(&hwstat->syncp, start));
+       } while (u64_stats_fetch_retry_irq(&hwstat->syncp, start));
 }
 
 static void b44_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
index 66759b6..15ba96c 100644 (file)
@@ -357,10 +357,10 @@ be_get_ethtool_stats(struct net_device *netdev,
                struct be_rx_stats *stats = rx_stats(rxo);
 
                do {
-                       start = u64_stats_fetch_begin_bh(&stats->sync);
+                       start = u64_stats_fetch_begin_irq(&stats->sync);
                        data[base] = stats->rx_bytes;
                        data[base + 1] = stats->rx_pkts;
-               } while (u64_stats_fetch_retry_bh(&stats->sync, start));
+               } while (u64_stats_fetch_retry_irq(&stats->sync, start));
 
                for (i = 2; i < ETHTOOL_RXSTATS_NUM; i++) {
                        p = (u8 *)stats + et_rx_stats[i].offset;
@@ -373,19 +373,19 @@ be_get_ethtool_stats(struct net_device *netdev,
                struct be_tx_stats *stats = tx_stats(txo);
 
                do {
-                       start = u64_stats_fetch_begin_bh(&stats->sync_compl);
+                       start = u64_stats_fetch_begin_irq(&stats->sync_compl);
                        data[base] = stats->tx_compl;
-               } while (u64_stats_fetch_retry_bh(&stats->sync_compl, start));
+               } while (u64_stats_fetch_retry_irq(&stats->sync_compl, start));
 
                do {
-                       start = u64_stats_fetch_begin_bh(&stats->sync);
+                       start = u64_stats_fetch_begin_irq(&stats->sync);
                        for (i = 1; i < ETHTOOL_TXSTATS_NUM; i++) {
                                p = (u8 *)stats + et_tx_stats[i].offset;
                                data[base + i] =
                                        (et_tx_stats[i].size == sizeof(u64)) ?
                                                *(u64 *)p : *(u32 *)p;
                        }
-               } while (u64_stats_fetch_retry_bh(&stats->sync, start));
+               } while (u64_stats_fetch_retry_irq(&stats->sync, start));
                base += ETHTOOL_TXSTATS_NUM;
        }
 }
index 239273b..a61f967 100644 (file)
@@ -591,10 +591,10 @@ static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
        for_all_rx_queues(adapter, rxo, i) {
                const struct be_rx_stats *rx_stats = rx_stats(rxo);
                do {
-                       start = u64_stats_fetch_begin_bh(&rx_stats->sync);
+                       start = u64_stats_fetch_begin_irq(&rx_stats->sync);
                        pkts = rx_stats(rxo)->rx_pkts;
                        bytes = rx_stats(rxo)->rx_bytes;
-               } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
+               } while (u64_stats_fetch_retry_irq(&rx_stats->sync, start));
                stats->rx_packets += pkts;
                stats->rx_bytes += bytes;
                stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
@@ -605,10 +605,10 @@ static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
        for_all_tx_queues(adapter, txo, i) {
                const struct be_tx_stats *tx_stats = tx_stats(txo);
                do {
-                       start = u64_stats_fetch_begin_bh(&tx_stats->sync);
+                       start = u64_stats_fetch_begin_irq(&tx_stats->sync);
                        pkts = tx_stats(txo)->tx_pkts;
                        bytes = tx_stats(txo)->tx_bytes;
-               } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
+               } while (u64_stats_fetch_retry_irq(&tx_stats->sync, start));
                stats->tx_packets += pkts;
                stats->tx_bytes += bytes;
        }
@@ -1408,15 +1408,15 @@ static void be_eqd_update(struct be_adapter *adapter)
 
                rxo = &adapter->rx_obj[eqo->idx];
                do {
-                       start = u64_stats_fetch_begin_bh(&rxo->stats.sync);
+                       start = u64_stats_fetch_begin_irq(&rxo->stats.sync);
                        rx_pkts = rxo->stats.rx_pkts;
-               } while (u64_stats_fetch_retry_bh(&rxo->stats.sync, start));
+               } while (u64_stats_fetch_retry_irq(&rxo->stats.sync, start));
 
                txo = &adapter->tx_obj[eqo->idx];
                do {
-                       start = u64_stats_fetch_begin_bh(&txo->stats.sync);
+                       start = u64_stats_fetch_begin_irq(&txo->stats.sync);
                        tx_pkts = txo->stats.tx_reqs;
-               } while (u64_stats_fetch_retry_bh(&txo->stats.sync, start));
+               } while (u64_stats_fetch_retry_irq(&txo->stats.sync, start));
 
 
                /* Skip, if wrapped around or first calculation */
index 8ee224f..6049e63 100644 (file)
@@ -653,18 +653,18 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 
                /* process Tx ring statistics */
                do {
-                       start = u64_stats_fetch_begin_bh(&tx_ring->syncp);
+                       start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
                        data[i] = tx_ring->stats.packets;
                        data[i + 1] = tx_ring->stats.bytes;
-               } while (u64_stats_fetch_retry_bh(&tx_ring->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
 
                /* Rx ring is the 2nd half of the queue pair */
                rx_ring = &tx_ring[1];
                do {
-                       start = u64_stats_fetch_begin_bh(&rx_ring->syncp);
+                       start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
                        data[i + 2] = rx_ring->stats.packets;
                        data[i + 3] = rx_ring->stats.bytes;
-               } while (u64_stats_fetch_retry_bh(&rx_ring->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
        }
        rcu_read_unlock();
        if (vsi == pf->vsi[pf->lan_vsi]) {
index 7379e5a..c66a11e 100644 (file)
@@ -376,20 +376,20 @@ static struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
                        continue;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&tx_ring->syncp);
+                       start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
                        packets = tx_ring->stats.packets;
                        bytes   = tx_ring->stats.bytes;
-               } while (u64_stats_fetch_retry_bh(&tx_ring->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
 
                stats->tx_packets += packets;
                stats->tx_bytes   += bytes;
                rx_ring = &tx_ring[1];
 
                do {
-                       start = u64_stats_fetch_begin_bh(&rx_ring->syncp);
+                       start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
                        packets = rx_ring->stats.packets;
                        bytes   = rx_ring->stats.bytes;
-               } while (u64_stats_fetch_retry_bh(&rx_ring->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
 
                stats->rx_packets += packets;
                stats->rx_bytes   += bytes;
@@ -770,10 +770,10 @@ void i40e_update_stats(struct i40e_vsi *vsi)
                p = ACCESS_ONCE(vsi->tx_rings[q]);
 
                do {
-                       start = u64_stats_fetch_begin_bh(&p->syncp);
+                       start = u64_stats_fetch_begin_irq(&p->syncp);
                        packets = p->stats.packets;
                        bytes = p->stats.bytes;
-               } while (u64_stats_fetch_retry_bh(&p->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&p->syncp, start));
                tx_b += bytes;
                tx_p += packets;
                tx_restart += p->tx_stats.restart_queue;
@@ -782,10 +782,10 @@ void i40e_update_stats(struct i40e_vsi *vsi)
                /* Rx queue is part of the same block as Tx queue */
                p = &p[1];
                do {
-                       start = u64_stats_fetch_begin_bh(&p->syncp);
+                       start = u64_stats_fetch_begin_irq(&p->syncp);
                        packets = p->stats.packets;
                        bytes = p->stats.bytes;
-               } while (u64_stats_fetch_retry_bh(&p->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&p->syncp, start));
                rx_b += bytes;
                rx_p += packets;
                rx_buf += p->rx_stats.alloc_buff_failed;
index 170e4db..e35bc1f 100644 (file)
@@ -2273,15 +2273,15 @@ static void igb_get_ethtool_stats(struct net_device *netdev,
 
                ring = adapter->tx_ring[j];
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->tx_syncp);
+                       start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
                        data[i]   = ring->tx_stats.packets;
                        data[i+1] = ring->tx_stats.bytes;
                        data[i+2] = ring->tx_stats.restart_queue;
-               } while (u64_stats_fetch_retry_bh(&ring->tx_syncp, start));
+               } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->tx_syncp2);
+                       start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
                        restart2  = ring->tx_stats.restart_queue2;
-               } while (u64_stats_fetch_retry_bh(&ring->tx_syncp2, start));
+               } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
                data[i+2] += restart2;
 
                i += IGB_TX_QUEUE_STATS_LEN;
@@ -2289,13 +2289,13 @@ static void igb_get_ethtool_stats(struct net_device *netdev,
        for (j = 0; j < adapter->num_rx_queues; j++) {
                ring = adapter->rx_ring[j];
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->rx_syncp);
+                       start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
                        data[i]   = ring->rx_stats.packets;
                        data[i+1] = ring->rx_stats.bytes;
                        data[i+2] = ring->rx_stats.drops;
                        data[i+3] = ring->rx_stats.csum_err;
                        data[i+4] = ring->rx_stats.alloc_failed;
-               } while (u64_stats_fetch_retry_bh(&ring->rx_syncp, start));
+               } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
                i += IGB_RX_QUEUE_STATS_LEN;
        }
        spin_unlock(&adapter->stats64_lock);
index ea8b9c4..f81d87c 100644 (file)
@@ -5168,10 +5168,10 @@ void igb_update_stats(struct igb_adapter *adapter,
                }
 
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->rx_syncp);
+                       start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
                        _bytes = ring->rx_stats.bytes;
                        _packets = ring->rx_stats.packets;
-               } while (u64_stats_fetch_retry_bh(&ring->rx_syncp, start));
+               } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
                bytes += _bytes;
                packets += _packets;
        }
@@ -5184,10 +5184,10 @@ void igb_update_stats(struct igb_adapter *adapter,
        for (i = 0; i < adapter->num_tx_queues; i++) {
                struct igb_ring *ring = adapter->tx_ring[i];
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->tx_syncp);
+                       start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
                        _bytes = ring->tx_stats.bytes;
                        _packets = ring->tx_stats.packets;
-               } while (u64_stats_fetch_retry_bh(&ring->tx_syncp, start));
+               } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
                bytes += _bytes;
                packets += _packets;
        }
index 24dd6f0..6c55c14 100644 (file)
@@ -1128,10 +1128,10 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
                }
 
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->syncp);
+                       start = u64_stats_fetch_begin_irq(&ring->syncp);
                        data[i]   = ring->stats.packets;
                        data[i+1] = ring->stats.bytes;
-               } while (u64_stats_fetch_retry_bh(&ring->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
                i += 2;
 #ifdef BP_EXTENDED_STATS
                data[i] = ring->stats.yields;
@@ -1156,10 +1156,10 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
                }
 
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->syncp);
+                       start = u64_stats_fetch_begin_irq(&ring->syncp);
                        data[i]   = ring->stats.packets;
                        data[i+1] = ring->stats.bytes;
-               } while (u64_stats_fetch_retry_bh(&ring->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
                i += 2;
 #ifdef BP_EXTENDED_STATS
                data[i] = ring->stats.yields;
index 851c413..5d314fe 100644 (file)
@@ -7293,10 +7293,10 @@ static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev,
 
                if (ring) {
                        do {
-                               start = u64_stats_fetch_begin_bh(&ring->syncp);
+                               start = u64_stats_fetch_begin_irq(&ring->syncp);
                                packets = ring->stats.packets;
                                bytes   = ring->stats.bytes;
-                       } while (u64_stats_fetch_retry_bh(&ring->syncp, start));
+                       } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
                        stats->rx_packets += packets;
                        stats->rx_bytes   += bytes;
                }
@@ -7309,10 +7309,10 @@ static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev,
 
                if (ring) {
                        do {
-                               start = u64_stats_fetch_begin_bh(&ring->syncp);
+                               start = u64_stats_fetch_begin_irq(&ring->syncp);
                                packets = ring->stats.packets;
                                bytes   = ring->stats.bytes;
-                       } while (u64_stats_fetch_retry_bh(&ring->syncp, start));
+                       } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
                        stats->tx_packets += packets;
                        stats->tx_bytes   += bytes;
                }
index 475341d..8581079 100644 (file)
@@ -3337,10 +3337,10 @@ static struct rtnl_link_stats64 *ixgbevf_get_stats(struct net_device *netdev,
        for (i = 0; i < adapter->num_rx_queues; i++) {
                ring = adapter->rx_ring[i];
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->syncp);
+                       start = u64_stats_fetch_begin_irq(&ring->syncp);
                        bytes = ring->stats.bytes;
                        packets = ring->stats.packets;
-               } while (u64_stats_fetch_retry_bh(&ring->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
                stats->rx_bytes += bytes;
                stats->rx_packets += packets;
        }
@@ -3348,10 +3348,10 @@ static struct rtnl_link_stats64 *ixgbevf_get_stats(struct net_device *netdev,
        for (i = 0; i < adapter->num_tx_queues; i++) {
                ring = adapter->tx_ring[i];
                do {
-                       start = u64_stats_fetch_begin_bh(&ring->syncp);
+                       start = u64_stats_fetch_begin_irq(&ring->syncp);
                        bytes = ring->stats.bytes;
                        packets = ring->stats.packets;
-               } while (u64_stats_fetch_retry_bh(&ring->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
                stats->tx_bytes += bytes;
                stats->tx_packets += packets;
        }
index 12c6a66..f3afcbd 100644 (file)
@@ -508,12 +508,12 @@ struct rtnl_link_stats64 *mvneta_get_stats64(struct net_device *dev,
 
                cpu_stats = per_cpu_ptr(pp->stats, cpu);
                do {
-                       start = u64_stats_fetch_begin_bh(&cpu_stats->syncp);
+                       start = u64_stats_fetch_begin_irq(&cpu_stats->syncp);
                        rx_packets = cpu_stats->rx_packets;
                        rx_bytes   = cpu_stats->rx_bytes;
                        tx_packets = cpu_stats->tx_packets;
                        tx_bytes   = cpu_stats->tx_bytes;
-               } while (u64_stats_fetch_retry_bh(&cpu_stats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start));
 
                stats->rx_packets += rx_packets;
                stats->rx_bytes   += rx_bytes;
index 2434611..5a5b237 100644 (file)
@@ -3908,19 +3908,19 @@ static struct rtnl_link_stats64 *sky2_get_stats(struct net_device *dev,
        u64 _bytes, _packets;
 
        do {
-               start = u64_stats_fetch_begin_bh(&sky2->rx_stats.syncp);
+               start = u64_stats_fetch_begin_irq(&sky2->rx_stats.syncp);
                _bytes = sky2->rx_stats.bytes;
                _packets = sky2->rx_stats.packets;
-       } while (u64_stats_fetch_retry_bh(&sky2->rx_stats.syncp, start));
+       } while (u64_stats_fetch_retry_irq(&sky2->rx_stats.syncp, start));
 
        stats->rx_packets = _packets;
        stats->rx_bytes = _bytes;
 
        do {
-               start = u64_stats_fetch_begin_bh(&sky2->tx_stats.syncp);
+               start = u64_stats_fetch_begin_irq(&sky2->tx_stats.syncp);
                _bytes = sky2->tx_stats.bytes;
                _packets = sky2->tx_stats.packets;
-       } while (u64_stats_fetch_retry_bh(&sky2->tx_stats.syncp, start));
+       } while (u64_stats_fetch_retry_irq(&sky2->tx_stats.syncp, start));
 
        stats->tx_packets = _packets;
        stats->tx_bytes = _bytes;
index c83cedd..c5bb1ac 100644 (file)
@@ -3134,12 +3134,12 @@ vxge_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
                u64 packets, bytes, multicast;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&rxstats->syncp);
+                       start = u64_stats_fetch_begin_irq(&rxstats->syncp);
 
                        packets   = rxstats->rx_frms;
                        multicast = rxstats->rx_mcast;
                        bytes     = rxstats->rx_bytes;
-               } while (u64_stats_fetch_retry_bh(&rxstats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&rxstats->syncp, start));
 
                net_stats->rx_packets += packets;
                net_stats->rx_bytes += bytes;
@@ -3149,11 +3149,11 @@ vxge_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
                net_stats->rx_dropped += rxstats->rx_dropped;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&txstats->syncp);
+                       start = u64_stats_fetch_begin_irq(&txstats->syncp);
 
                        packets = txstats->tx_frms;
                        bytes   = txstats->tx_bytes;
-               } while (u64_stats_fetch_retry_bh(&txstats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&txstats->syncp, start));
 
                net_stats->tx_packets += packets;
                net_stats->tx_bytes += bytes;
index bad3c05..811be0b 100644 (file)
@@ -1753,19 +1753,19 @@ nv_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *storage)
 
        /* software stats */
        do {
-               syncp_start = u64_stats_fetch_begin_bh(&np->swstats_rx_syncp);
+               syncp_start = u64_stats_fetch_begin_irq(&np->swstats_rx_syncp);
                storage->rx_packets       = np->stat_rx_packets;
                storage->rx_bytes         = np->stat_rx_bytes;
                storage->rx_dropped       = np->stat_rx_dropped;
                storage->rx_missed_errors = np->stat_rx_missed_errors;
-       } while (u64_stats_fetch_retry_bh(&np->swstats_rx_syncp, syncp_start));
+       } while (u64_stats_fetch_retry_irq(&np->swstats_rx_syncp, syncp_start));
 
        do {
-               syncp_start = u64_stats_fetch_begin_bh(&np->swstats_tx_syncp);
+               syncp_start = u64_stats_fetch_begin_irq(&np->swstats_tx_syncp);
                storage->tx_packets = np->stat_tx_packets;
                storage->tx_bytes   = np->stat_tx_bytes;
                storage->tx_dropped = np->stat_tx_dropped;
-       } while (u64_stats_fetch_retry_bh(&np->swstats_tx_syncp, syncp_start));
+       } while (u64_stats_fetch_retry_irq(&np->swstats_tx_syncp, syncp_start));
 
        /* If the nic supports hw counters then retrieve latest values */
        if (np->driver_data & DEV_HAS_STATISTICS_V123) {
index 8cb2f35..2e5df14 100644 (file)
@@ -2522,16 +2522,16 @@ rtl8139_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
        netdev_stats_to_stats64(stats, &dev->stats);
 
        do {
-               start = u64_stats_fetch_begin_bh(&tp->rx_stats.syncp);
+               start = u64_stats_fetch_begin_irq(&tp->rx_stats.syncp);
                stats->rx_packets = tp->rx_stats.packets;
                stats->rx_bytes = tp->rx_stats.bytes;
-       } while (u64_stats_fetch_retry_bh(&tp->rx_stats.syncp, start));
+       } while (u64_stats_fetch_retry_irq(&tp->rx_stats.syncp, start));
 
        do {
-               start = u64_stats_fetch_begin_bh(&tp->tx_stats.syncp);
+               start = u64_stats_fetch_begin_irq(&tp->tx_stats.syncp);
                stats->tx_packets = tp->tx_stats.packets;
                stats->tx_bytes = tp->tx_stats.bytes;
-       } while (u64_stats_fetch_retry_bh(&tp->tx_stats.syncp, start));
+       } while (u64_stats_fetch_retry_irq(&tp->tx_stats.syncp, start));
 
        return stats;
 }
index 90c14d1..aa1c079 100644 (file)
@@ -6590,17 +6590,17 @@ rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
                rtl8169_rx_missed(dev, ioaddr);
 
        do {
-               start = u64_stats_fetch_begin_bh(&tp->rx_stats.syncp);
+               start = u64_stats_fetch_begin_irq(&tp->rx_stats.syncp);
                stats->rx_packets = tp->rx_stats.packets;
                stats->rx_bytes = tp->rx_stats.bytes;
-       } while (u64_stats_fetch_retry_bh(&tp->rx_stats.syncp, start));
+       } while (u64_stats_fetch_retry_irq(&tp->rx_stats.syncp, start));
 
 
        do {
-               start = u64_stats_fetch_begin_bh(&tp->tx_stats.syncp);
+               start = u64_stats_fetch_begin_irq(&tp->tx_stats.syncp);
                stats->tx_packets = tp->tx_stats.packets;
                stats->tx_bytes = tp->tx_stats.bytes;
-       } while (u64_stats_fetch_retry_bh(&tp->tx_stats.syncp, start));
+       } while (u64_stats_fetch_retry_irq(&tp->tx_stats.syncp, start));
 
        stats->rx_dropped       = dev->stats.rx_dropped;
        stats->tx_dropped       = dev->stats.tx_dropped;
index edb2e12..7e33973 100644 (file)
@@ -2068,14 +2068,14 @@ static struct rtnl_link_stats64 *tile_net_get_stats64(struct net_device *dev,
                cpu_stats = &priv->cpu[i]->stats;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&cpu_stats->syncp);
+                       start = u64_stats_fetch_begin_irq(&cpu_stats->syncp);
                        trx_packets = cpu_stats->rx_packets;
                        ttx_packets = cpu_stats->tx_packets;
                        trx_bytes   = cpu_stats->rx_bytes;
                        ttx_bytes   = cpu_stats->tx_bytes;
                        trx_errors  = cpu_stats->rx_errors;
                        trx_dropped = cpu_stats->rx_dropped;
-               } while (u64_stats_fetch_retry_bh(&cpu_stats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start));
 
                rx_packets += trx_packets;
                tx_packets += ttx_packets;
index ef312bc..5bc1a2d 100644 (file)
@@ -2070,16 +2070,16 @@ rhine_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
        netdev_stats_to_stats64(stats, &dev->stats);
 
        do {
-               start = u64_stats_fetch_begin_bh(&rp->rx_stats.syncp);
+               start = u64_stats_fetch_begin_irq(&rp->rx_stats.syncp);
                stats->rx_packets = rp->rx_stats.packets;
                stats->rx_bytes = rp->rx_stats.bytes;
-       } while (u64_stats_fetch_retry_bh(&rp->rx_stats.syncp, start));
+       } while (u64_stats_fetch_retry_irq(&rp->rx_stats.syncp, start));
 
        do {
-               start = u64_stats_fetch_begin_bh(&rp->tx_stats.syncp);
+               start = u64_stats_fetch_begin_irq(&rp->tx_stats.syncp);
                stats->tx_packets = rp->tx_stats.packets;
                stats->tx_bytes = rp->tx_stats.bytes;
-       } while (u64_stats_fetch_retry_bh(&rp->tx_stats.syncp, start));
+       } while (u64_stats_fetch_retry_irq(&rp->tx_stats.syncp, start));
 
        return stats;
 }
index c14d39b..1da3676 100644 (file)
@@ -136,18 +136,18 @@ static struct rtnl_link_stats64 *ifb_stats64(struct net_device *dev,
        unsigned int start;
 
        do {
-               start = u64_stats_fetch_begin_bh(&dp->rsync);
+               start = u64_stats_fetch_begin_irq(&dp->rsync);
                stats->rx_packets = dp->rx_packets;
                stats->rx_bytes = dp->rx_bytes;
-       } while (u64_stats_fetch_retry_bh(&dp->rsync, start));
+       } while (u64_stats_fetch_retry_irq(&dp->rsync, start));
 
        do {
-               start = u64_stats_fetch_begin_bh(&dp->tsync);
+               start = u64_stats_fetch_begin_irq(&dp->tsync);
 
                stats->tx_packets = dp->tx_packets;
                stats->tx_bytes = dp->tx_bytes;
 
-       } while (u64_stats_fetch_retry_bh(&dp->tsync, start));
+       } while (u64_stats_fetch_retry_irq(&dp->tsync, start));
 
        stats->rx_dropped = dev->stats.rx_dropped;
        stats->tx_dropped = dev->stats.tx_dropped;
index 282effe..bb96409 100644 (file)
@@ -111,10 +111,10 @@ static struct rtnl_link_stats64 *loopback_get_stats64(struct net_device *dev,
 
                lb_stats = per_cpu_ptr(dev->lstats, i);
                do {
-                       start = u64_stats_fetch_begin_bh(&lb_stats->syncp);
+                       start = u64_stats_fetch_begin_irq(&lb_stats->syncp);
                        tbytes = lb_stats->bytes;
                        tpackets = lb_stats->packets;
-               } while (u64_stats_fetch_retry_bh(&lb_stats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&lb_stats->syncp, start));
                bytes   += tbytes;
                packets += tpackets;
        }
index c683ac2..753a8c2 100644 (file)
@@ -582,13 +582,13 @@ static struct rtnl_link_stats64 *macvlan_dev_get_stats64(struct net_device *dev,
                for_each_possible_cpu(i) {
                        p = per_cpu_ptr(vlan->pcpu_stats, i);
                        do {
-                               start = u64_stats_fetch_begin_bh(&p->syncp);
+                               start = u64_stats_fetch_begin_irq(&p->syncp);
                                rx_packets      = p->rx_packets;
                                rx_bytes        = p->rx_bytes;
                                rx_multicast    = p->rx_multicast;
                                tx_packets      = p->tx_packets;
                                tx_bytes        = p->tx_bytes;
-                       } while (u64_stats_fetch_retry_bh(&p->syncp, start));
+                       } while (u64_stats_fetch_retry_irq(&p->syncp, start));
 
                        stats->rx_packets       += rx_packets;
                        stats->rx_bytes         += rx_bytes;
index 14ce7de..6929b03 100644 (file)
@@ -90,10 +90,10 @@ nlmon_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
                nl_stats = per_cpu_ptr(dev->lstats, i);
 
                do {
-                       start = u64_stats_fetch_begin_bh(&nl_stats->syncp);
+                       start = u64_stats_fetch_begin_irq(&nl_stats->syncp);
                        tbytes = nl_stats->bytes;
                        tpackets = nl_stats->packets;
-               } while (u64_stats_fetch_retry_bh(&nl_stats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&nl_stats->syncp, start));
 
                packets += tpackets;
                bytes += tbytes;
index aea92f0..2b1a1d6 100644 (file)
@@ -1761,13 +1761,13 @@ team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
        for_each_possible_cpu(i) {
                p = per_cpu_ptr(team->pcpu_stats, i);
                do {
-                       start = u64_stats_fetch_begin_bh(&p->syncp);
+                       start = u64_stats_fetch_begin_irq(&p->syncp);
                        rx_packets      = p->rx_packets;
                        rx_bytes        = p->rx_bytes;
                        rx_multicast    = p->rx_multicast;
                        tx_packets      = p->tx_packets;
                        tx_bytes        = p->tx_bytes;
-               } while (u64_stats_fetch_retry_bh(&p->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&p->syncp, start));
 
                stats->rx_packets       += rx_packets;
                stats->rx_bytes         += rx_bytes;
index d671fc3..dbde341 100644 (file)
@@ -432,9 +432,9 @@ static void __lb_one_cpu_stats_add(struct lb_stats *acc_stats,
        struct lb_stats tmp;
 
        do {
-               start = u64_stats_fetch_begin_bh(syncp);
+               start = u64_stats_fetch_begin_irq(syncp);
                tmp.tx_bytes = cpu_stats->tx_bytes;
-       } while (u64_stats_fetch_retry_bh(syncp, start));
+       } while (u64_stats_fetch_retry_irq(syncp, start));
        acc_stats->tx_bytes += tmp.tx_bytes;
 }
 
index 3aca92e..e1c77d4 100644 (file)
@@ -156,10 +156,10 @@ static u64 veth_stats_one(struct pcpu_vstats *result, struct net_device *dev)
                unsigned int start;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&stats->syncp);
+                       start = u64_stats_fetch_begin_irq(&stats->syncp);
                        packets = stats->packets;
                        bytes = stats->bytes;
-               } while (u64_stats_fetch_retry_bh(&stats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
                result->packets += packets;
                result->bytes += bytes;
        }
index 5632a99..80d84c4 100644 (file)
@@ -1000,16 +1000,16 @@ static struct rtnl_link_stats64 *virtnet_stats(struct net_device *dev,
                u64 tpackets, tbytes, rpackets, rbytes;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&stats->tx_syncp);
+                       start = u64_stats_fetch_begin_irq(&stats->tx_syncp);
                        tpackets = stats->tx_packets;
                        tbytes   = stats->tx_bytes;
-               } while (u64_stats_fetch_retry_bh(&stats->tx_syncp, start));
+               } while (u64_stats_fetch_retry_irq(&stats->tx_syncp, start));
 
                do {
-                       start = u64_stats_fetch_begin_bh(&stats->rx_syncp);
+                       start = u64_stats_fetch_begin_irq(&stats->rx_syncp);
                        rpackets = stats->rx_packets;
                        rbytes   = stats->rx_bytes;
-               } while (u64_stats_fetch_retry_bh(&stats->rx_syncp, start));
+               } while (u64_stats_fetch_retry_irq(&stats->rx_syncp, start));
 
                tot->rx_packets += rpackets;
                tot->tx_packets += tpackets;
index a38f03d..49f3b3d 100644 (file)
@@ -1060,13 +1060,13 @@ static struct rtnl_link_stats64 *xennet_get_stats64(struct net_device *dev,
                unsigned int start;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&stats->syncp);
+                       start = u64_stats_fetch_begin_irq(&stats->syncp);
 
                        rx_packets = stats->rx_packets;
                        tx_packets = stats->tx_packets;
                        rx_bytes = stats->rx_bytes;
                        tx_bytes = stats->tx_bytes;
-               } while (u64_stats_fetch_retry_bh(&stats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
 
                tot->rx_packets += rx_packets;
                tot->tx_packets += tx_packets;
index 7bfabd2..4b4439e 100644 (file)
@@ -27,8 +27,8 @@
  *    (On UP, there is no seqcount_t protection, a reader allowing interrupts could
  *     read partial values)
  *
- * 7) For softirq uses, readers can use u64_stats_fetch_begin_bh() and
- *    u64_stats_fetch_retry_bh() helpers
+ * 7) For irq and softirq uses, readers can use u64_stats_fetch_begin_irq() and
+ *    u64_stats_fetch_retry_irq() helpers
  *
  * Usage :
  *
@@ -114,31 +114,31 @@ static inline bool u64_stats_fetch_retry(const struct u64_stats_sync *syncp,
 }
 
 /*
- * In case softirq handlers can update u64 counters, readers can use following helpers
+ * In case irq handlers can update u64 counters, readers can use following helpers
  * - SMP 32bit arches use seqcount protection, irq safe.
- * - UP 32bit must disable BH.
+ * - UP 32bit must disable irqs.
  * - 64bit have no problem atomically reading u64 values, irq safe.
  */
-static inline unsigned int u64_stats_fetch_begin_bh(const struct u64_stats_sync *syncp)
+static inline unsigned int u64_stats_fetch_begin_irq(const struct u64_stats_sync *syncp)
 {
 #if BITS_PER_LONG==32 && defined(CONFIG_SMP)
        return read_seqcount_begin(&syncp->seq);
 #else
 #if BITS_PER_LONG==32
-       local_bh_disable();
+       local_irq_disable();
 #endif
        return 0;
 #endif
 }
 
-static inline bool u64_stats_fetch_retry_bh(const struct u64_stats_sync *syncp,
+static inline bool u64_stats_fetch_retry_irq(const struct u64_stats_sync *syncp,
                                         unsigned int start)
 {
 #if BITS_PER_LONG==32 && defined(CONFIG_SMP)
        return read_seqcount_retry(&syncp->seq, start);
 #else
 #if BITS_PER_LONG==32
-       local_bh_enable();
+       local_irq_enable();
 #endif
        return false;
 #endif
index b38e715..4f3e907 100644 (file)
@@ -678,13 +678,13 @@ static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, st
 
                        p = per_cpu_ptr(vlan_dev_priv(dev)->vlan_pcpu_stats, i);
                        do {
-                               start = u64_stats_fetch_begin_bh(&p->syncp);
+                               start = u64_stats_fetch_begin_irq(&p->syncp);
                                rxpackets       = p->rx_packets;
                                rxbytes         = p->rx_bytes;
                                rxmulticast     = p->rx_multicast;
                                txpackets       = p->tx_packets;
                                txbytes         = p->tx_bytes;
-                       } while (u64_stats_fetch_retry_bh(&p->syncp, start));
+                       } while (u64_stats_fetch_retry_irq(&p->syncp, start));
 
                        stats->rx_packets       += rxpackets;
                        stats->rx_bytes         += rxbytes;
index b063050..f2a0847 100644 (file)
@@ -136,9 +136,9 @@ static struct rtnl_link_stats64 *br_get_stats64(struct net_device *dev,
                const struct pcpu_sw_netstats *bstats
                        = per_cpu_ptr(br->stats, cpu);
                do {
-                       start = u64_stats_fetch_begin_bh(&bstats->syncp);
+                       start = u64_stats_fetch_begin_irq(&bstats->syncp);
                        memcpy(&tmp, bstats, sizeof(tmp));
-               } while (u64_stats_fetch_retry_bh(&bstats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&bstats->syncp, start));
                sum.tx_bytes   += tmp.tx_bytes;
                sum.tx_packets += tmp.tx_packets;
                sum.rx_bytes   += tmp.rx_bytes;
index 19ab78a..8c54870 100644 (file)
@@ -1505,9 +1505,9 @@ u64 snmp_fold_field64(void __percpu *mib[], int offt, size_t syncp_offset)
                bhptr = per_cpu_ptr(mib[0], cpu);
                syncp = (struct u64_stats_sync *)(bhptr + syncp_offset);
                do {
-                       start = u64_stats_fetch_begin_bh(syncp);
+                       start = u64_stats_fetch_begin_irq(syncp);
                        v = *(((u64 *) bhptr) + offt);
-               } while (u64_stats_fetch_retry_bh(syncp, start));
+               } while (u64_stats_fetch_retry_irq(syncp, start));
 
                res += v;
        }
index 6f847dd..b86f0a3 100644 (file)
@@ -161,12 +161,12 @@ struct rtnl_link_stats64 *ip_tunnel_get_stats64(struct net_device *dev,
                unsigned int start;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&tstats->syncp);
+                       start = u64_stats_fetch_begin_irq(&tstats->syncp);
                        rx_packets = tstats->rx_packets;
                        tx_packets = tstats->tx_packets;
                        rx_bytes = tstats->rx_bytes;
                        tx_bytes = tstats->tx_bytes;
-               } while (u64_stats_fetch_retry_bh(&tstats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&tstats->syncp, start));
 
                tot->rx_packets += rx_packets;
                tot->tx_packets += tx_packets;
index 8ad59f4..e1df691 100644 (file)
@@ -108,12 +108,12 @@ static struct net_device_stats *ip6_get_stats(struct net_device *dev)
                                                   per_cpu_ptr(dev->tstats, i);
 
                do {
-                       start = u64_stats_fetch_begin_bh(&tstats->syncp);
+                       start = u64_stats_fetch_begin_irq(&tstats->syncp);
                        tmp.rx_packets = tstats->rx_packets;
                        tmp.rx_bytes = tstats->rx_bytes;
                        tmp.tx_packets = tstats->tx_packets;
                        tmp.tx_bytes =  tstats->tx_bytes;
-               } while (u64_stats_fetch_retry_bh(&tstats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&tstats->syncp, start));
 
                sum.rx_packets += tmp.rx_packets;
                sum.rx_bytes   += tmp.rx_bytes;
index 35be035..d6d7584 100644 (file)
@@ -2177,10 +2177,10 @@ static int ip_vs_stats_percpu_show(struct seq_file *seq, void *v)
                __u64 inbytes, outbytes;
 
                do {
-                       start = u64_stats_fetch_begin_bh(&u->syncp);
+                       start = u64_stats_fetch_begin_irq(&u->syncp);
                        inbytes = u->ustats.inbytes;
                        outbytes = u->ustats.outbytes;
-               } while (u64_stats_fetch_retry_bh(&u->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&u->syncp, start));
 
                seq_printf(seq, "%3X %8X %8X %8X %16LX %16LX\n",
                           i, u->ustats.conns, u->ustats.inpkts,
index 36f8872..c53fe0c 100644 (file)
@@ -606,9 +606,9 @@ static void get_dp_stats(struct datapath *dp, struct ovs_dp_stats *stats,
                percpu_stats = per_cpu_ptr(dp->stats_percpu, i);
 
                do {
-                       start = u64_stats_fetch_begin_bh(&percpu_stats->syncp);
+                       start = u64_stats_fetch_begin_irq(&percpu_stats->syncp);
                        local_stats = *percpu_stats;
-               } while (u64_stats_fetch_retry_bh(&percpu_stats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&percpu_stats->syncp, start));
 
                stats->n_hit += local_stats.n_hit;
                stats->n_missed += local_stats.n_missed;
index 3b4db32..42c0f4a 100644 (file)
@@ -277,9 +277,9 @@ void ovs_vport_get_stats(struct vport *vport, struct ovs_vport_stats *stats)
                percpu_stats = per_cpu_ptr(vport->percpu_stats, i);
 
                do {
-                       start = u64_stats_fetch_begin_bh(&percpu_stats->syncp);
+                       start = u64_stats_fetch_begin_irq(&percpu_stats->syncp);
                        local_stats = *percpu_stats;
-               } while (u64_stats_fetch_retry_bh(&percpu_stats->syncp, start));
+               } while (u64_stats_fetch_retry_irq(&percpu_stats->syncp, start));
 
                stats->rx_bytes         += local_stats.rx_bytes;
                stats->rx_packets       += local_stats.rx_packets;