Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 39 insertions, 11 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ae86adee374..33370271b8b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -18,6 +18,7 @@
 #include <linux/kmemcheck.h>
 #include <linux/compiler.h>
 #include <linux/time.h>
+#include <linux/bug.h>
 #include <linux/cache.h>
 
 #include <linux/atomic.h>
@@ -94,6 +95,13 @@
  *			  about CHECKSUM_UNNECESSARY. 8)
  *	NETIF_F_IPV6_CSUM about as dumb as the last one but does IPv6 instead.
  *
+ *	UNNECESSARY: device will do per protocol specific csum. Protocol drivers
+ *	that do not want net to perform the checksum calculation should use
+ *	this flag in their outgoing skbs.
+ *	NETIF_F_FCOE_CRC  this indicates the device can do FCoE FC CRC
+ *			  offload. Correspondingly, the FCoE protocol driver
+ *			  stack should use CHECKSUM_UNNECESSARY.
+ *
  *	Any questions? No questions, good. 		--ANK
  */
 
@@ -361,6 +369,7 @@ typedef unsigned char *sk_buff_data_t;
  *		ports.
  *	@wifi_acked_valid: wifi_acked was set
  *	@wifi_acked: whether frame was acked on wifi or not
+ *	@no_fcs:  Request NIC to treat last 4 bytes as Ethernet FCS
  *	@dma_cookie: a cookie to one of several possible DMA operations
  *		done by skb DMA functions
  *	@secmark: security marking
@@ -438,6 +447,11 @@ struct sk_buff {
 #endif
 
 	int			skb_iif;
+
+	__u32			rxhash;
+
+	__u16			vlan_tci;
+
 #ifdef CONFIG_NET_SCHED
 	__u16			tc_index;	/* traffic control index */
 #ifdef CONFIG_NET_CLS_ACT
@@ -445,8 +459,6 @@ struct sk_buff {
 #endif
 #endif
 
-	__u32			rxhash;
-
 	__u16			queue_mapping;
 	kmemcheck_bitfield_begin(flags2);
 #ifdef CONFIG_IPV6_NDISC_NODETYPE
@@ -456,7 +468,8 @@ struct sk_buff {
 	__u8			l4_rxhash:1;
 	__u8			wifi_acked_valid:1;
 	__u8			wifi_acked:1;
-	/* 10/12 bit hole (depending on ndisc_nodetype presence) */
+	__u8			no_fcs:1;
+	/* 9/11 bit hole (depending on ndisc_nodetype presence) */
 	kmemcheck_bitfield_end(flags2);
 
 #ifdef CONFIG_NET_DMA
@@ -470,8 +483,6 @@ struct sk_buff {
 		__u32		dropcount;
 	};
 
-	__u16			vlan_tci;
-
 	sk_buff_data_t		transport_header;
 	sk_buff_data_t		network_header;
 	sk_buff_data_t		mac_header;
@@ -490,7 +501,6 @@ struct sk_buff {
  */
 #include <linux/slab.h>
 
-#include <asm/system.h>
 
 /*
  * skb might have a dst pointer attached, refcounted or not.
@@ -876,6 +886,24 @@ static inline struct sk_buff *skb_peek(const struct sk_buff_head *list_)
 }
 
 /**
+ *	skb_peek_next - peek skb following the given one from a queue
+ *	@skb: skb to start from
+ *	@list_: list to peek at
+ *
+ *	Returns %NULL when the end of the list is met or a pointer to the
+ *	next element. The reference count is not incremented and the
+ *	reference is therefore volatile. Use with caution.
+ */
+static inline struct sk_buff *skb_peek_next(struct sk_buff *skb,
+		const struct sk_buff_head *list_)
+{
+	struct sk_buff *next = skb->next;
+	if (next == (struct sk_buff *)list_)
+		next = NULL;
+	return next;
+}
+
+/**
  *	skb_peek_tail - peek at the tail of an &sk_buff_head
  *	@list_: list to peek at
  *
@@ -1152,7 +1180,7 @@ static inline struct sk_buff *__skb_dequeue_tail(struct sk_buff_head *list)
 }
 
 
-static inline int skb_is_nonlinear(const struct sk_buff *skb)
+static inline bool skb_is_nonlinear(const struct sk_buff *skb)
 {
 	return skb->data_len;
 }
@@ -1216,7 +1244,7 @@ static inline void skb_fill_page_desc(struct sk_buff *skb, int i,
 }
 
 extern void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page,
-			    int off, int size);
+			    int off, int size, unsigned int truesize);
 
 #define SKB_PAGE_ASSERT(skb) 	BUG_ON(skb_shinfo(skb)->nr_frags)
 #define SKB_FRAG_ASSERT(skb) 	BUG_ON(skb_has_frag_list(skb))
@@ -2055,7 +2083,7 @@ static inline void skb_frag_add_head(struct sk_buff *skb, struct sk_buff *frag)
 	for (iter = skb_shinfo(skb)->frag_list; iter; iter = iter->next)
 
 extern struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned flags,
-					   int *peeked, int *err);
+					   int *peeked, int *off, int *err);
 extern struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags,
 					 int noblock, int *err);
 extern unsigned int    datagram_poll(struct file *file, struct socket *sock,
@@ -2448,12 +2476,12 @@ static inline struct sec_path *skb_sec_path(struct sk_buff *skb)
 }
 #endif
 
-static inline int skb_is_gso(const struct sk_buff *skb)
+static inline bool skb_is_gso(const struct sk_buff *skb)
 {
 	return skb_shinfo(skb)->gso_size;
 }
 
-static inline int skb_is_gso_v6(const struct sk_buff *skb)
+static inline bool skb_is_gso_v6(const struct sk_buff *skb)
 {
 	return skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6;
 }