Merge tag 'v3.13-rc6' into for-3.14/core

Needed to bring blk-mq uptodate, since changes have been going in
since for-3.14/core was established.

Fixup merge issues related to the immutable biovec changes.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

Conflicts:
	block/blk-flush.c
	fs/btrfs/check-integrity.c
	fs/btrfs/extent_io.c
	fs/btrfs/scrub.c
	fs/logfs/dev_bdev.c

1 files changed, 9 insertions, 16 deletions

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index dc76670c2f2a..2a89da080317 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -744,7 +744,7 @@ err:
 	rcu_read_lock();
 	vlan = rcu_dereference(q->vlan);
 	if (vlan)
-		vlan->dev->stats.tx_dropped++;
+		this_cpu_inc(vlan->pcpu_stats->tx_dropped);
 	rcu_read_unlock();
 
 	return err;
@@ -767,11 +767,10 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
 				const struct sk_buff *skb,
 				const struct iovec *iv, int len)
 {
-	struct macvlan_dev *vlan;
 	int ret;
 	int vnet_hdr_len = 0;
 	int vlan_offset = 0;
-	int copied;
+	int copied, total;
 
 	if (q->flags & IFF_VNET_HDR) {
 		struct virtio_net_hdr vnet_hdr;
@@ -786,7 +785,8 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
 		if (memcpy_toiovecend(iv, (void *)&vnet_hdr, 0, sizeof(vnet_hdr)))
 			return -EFAULT;
 	}
-	copied = vnet_hdr_len;
+	total = copied = vnet_hdr_len;
+	total += skb->len;
 
 	if (!vlan_tx_tag_present(skb))
 		len = min_t(int, skb->len, len);
@@ -801,6 +801,7 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
 
 		vlan_offset = offsetof(struct vlan_ethhdr, h_vlan_proto);
 		len = min_t(int, skb->len + VLAN_HLEN, len);
+		total += VLAN_HLEN;
 
 		copy = min_t(int, vlan_offset, len);
 		ret = skb_copy_datagram_const_iovec(skb, 0, iv, copied, copy);
@@ -818,19 +819,9 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
 	}
 
 	ret = skb_copy_datagram_const_iovec(skb, vlan_offset, iv, copied, len);
-	copied += len;
 
 done:
-	rcu_read_lock();
-	vlan = rcu_dereference(q->vlan);
-	if (vlan) {
-		preempt_disable();
-		macvlan_count_rx(vlan, copied - vnet_hdr_len, ret == 0, 0);
-		preempt_enable();
-	}
-	rcu_read_unlock();
-
-	return ret ? ret : copied;
+	return ret ? ret : total;
 }
 
 static ssize_t macvtap_do_read(struct macvtap_queue *q, struct kiocb *iocb,
@@ -885,7 +876,9 @@ static ssize_t macvtap_aio_read(struct kiocb *iocb, const struct iovec *iv,
 	}
 
 	ret = macvtap_do_read(q, iocb, iv, len, file->f_flags & O_NONBLOCK);
-	ret = min_t(ssize_t, ret, len); /* XXX copied from tun.c. Why? */
+	ret = min_t(ssize_t, ret, len);
+	if (ret > 0)
+		iocb->ki_pos = ret;
 out:
 	return ret;
 }