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authorWillem de Bruijn <willemb@google.com>2015-05-12 11:56:46 -0400
committerDavid S. Miller <davem@davemloft.net>2015-05-13 15:42:59 -0400
commit0648ab70afe6c3bf2369a6d779b44a85121c063d (patch)
treed46581955bce49448791e1849ce7283f65917d33 /net/packet/internal.h
parentad377cab4966e2f9162f05be1f7eeae466d411a8 (diff)
downloadlinux-0648ab70afe6c3bf2369a6d779b44a85121c063d.tar.gz
packet: rollover prepare: per-socket state
Replace rollover state per fanout group with state per socket. Future
patches will add fields to the new structure.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet/internal.h')
-rw-r--r--net/packet/internal.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/packet/internal.h b/net/packet/internal.h
index fe6e20caea1d..a9d33a28a019 100644
--- a/net/packet/internal.h
+++ b/net/packet/internal.h
@@ -82,12 +82,15 @@ struct packet_fanout {
 	atomic_t		rr_cur;
 	struct list_head	list;
 	struct sock		*arr[PACKET_FANOUT_MAX];
-	int			next[PACKET_FANOUT_MAX];
 	spinlock_t		lock;
 	atomic_t		sk_ref;
 	struct packet_type	prot_hook ____cacheline_aligned_in_smp;
 };
 
+struct packet_rollover {
+	int			sock;
+} ____cacheline_aligned_in_smp;
+
 struct packet_sock {
 	/* struct sock has to be the first member of packet_sock */
 	struct sock		sk;
@@ -104,6 +107,7 @@ struct packet_sock {
 				has_vnet_hdr:1;
 	int			ifindex;	/* bound device		*/
 	__be16			num;
+	struct packet_rollover	*rollover;
 	struct packet_mclist	*mclist;
 	atomic_t		mapped;
 	enum tpacket_versions	tp_version;