net: Replace u64_stats_fetch_begin_bh to u64_stats_fetch_begin_irq

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>

8 files changed, 16 insertions, 16 deletions

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index b38e715b1cd..4f3e9073cb4 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -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;
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index b063050b63e..f2a08477e0f 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -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;
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 19ab78aca54..8c54870db79 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -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;
 	}
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 6f847dd56db..b86f0a37fa7 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -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;
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 8ad59f4811d..e1df691d78b 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -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;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 35be035ee0c..d6d75841352 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -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,
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 36f8872cb07..c53fe0c9697 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -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;
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 3b4db322045..42c0f4a0b78 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -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;