Merge "Pin block bitmaps in RAM based on mount option"
diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h
index 06edfef..082355f 100644
--- a/arch/alpha/include/asm/socket.h
+++ b/arch/alpha/include/asm/socket.h
@@ -69,6 +69,9 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
/* O_NONBLOCK clashes with the bits used for socket types. Therefore we
* have to define SOCK_NONBLOCK to a different value here.
*/
diff --git a/arch/arm/include/asm/socket.h b/arch/arm/include/asm/socket.h
index 23061f7..d97caad 100644
--- a/arch/arm/include/asm/socket.h
+++ b/arch/arm/include/asm/socket.h
@@ -61,6 +61,9 @@
#define SO_DOMAIN 39
#define SO_RXQ_OVFL 40
-#define SO_RXQ_ALLOC 41
+#define SO_RXQ_ALLOC 101 /* non-upstreamed sockopt */
+
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
#endif /* _ASM_SOCKET_H */
diff --git a/arch/avr32/include/asm/socket.h b/arch/avr32/include/asm/socket.h
index c8d1fae..247b88c 100644
--- a/arch/avr32/include/asm/socket.h
+++ b/arch/avr32/include/asm/socket.h
@@ -62,4 +62,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* __ASM_AVR32_SOCKET_H */
diff --git a/arch/cris/include/asm/socket.h b/arch/cris/include/asm/socket.h
index 1a4a619..e269264 100644
--- a/arch/cris/include/asm/socket.h
+++ b/arch/cris/include/asm/socket.h
@@ -64,6 +64,9 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/frv/include/asm/socket.h b/arch/frv/include/asm/socket.h
index a6b2688..ce80fda 100644
--- a/arch/frv/include/asm/socket.h
+++ b/arch/frv/include/asm/socket.h
@@ -62,5 +62,8 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h
index 04c0f45..cf1daab 100644
--- a/arch/h8300/include/asm/socket.h
+++ b/arch/h8300/include/asm/socket.h
@@ -62,4 +62,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/ia64/include/asm/socket.h b/arch/ia64/include/asm/socket.h
index 51427ea..4b03664 100644
--- a/arch/ia64/include/asm/socket.h
+++ b/arch/ia64/include/asm/socket.h
@@ -71,4 +71,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_IA64_SOCKET_H */
diff --git a/arch/m32r/include/asm/socket.h b/arch/m32r/include/asm/socket.h
index 469787c3..e8b8c5b 100644
--- a/arch/m32r/include/asm/socket.h
+++ b/arch/m32r/include/asm/socket.h
@@ -62,4 +62,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_M32R_SOCKET_H */
diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/asm/socket.h
index 9bf49c8..d4708ce 100644
--- a/arch/m68k/include/asm/socket.h
+++ b/arch/m68k/include/asm/socket.h
@@ -62,4 +62,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/mips/include/asm/socket.h b/arch/mips/include/asm/socket.h
index 9de5190..ad5c0a7 100644
--- a/arch/mips/include/asm/socket.h
+++ b/arch/mips/include/asm/socket.h
@@ -82,6 +82,9 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#ifdef __KERNEL__
/** sock_type - Socket types
diff --git a/arch/mn10300/include/asm/socket.h b/arch/mn10300/include/asm/socket.h
index 4e60c42..876356d 100644
--- a/arch/mn10300/include/asm/socket.h
+++ b/arch/mn10300/include/asm/socket.h
@@ -62,4 +62,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
index 225b7d6..d28c51b 100644
--- a/arch/parisc/include/asm/socket.h
+++ b/arch/parisc/include/asm/socket.h
@@ -61,6 +61,9 @@
#define SO_RXQ_OVFL 0x4021
+#define SO_WIFI_STATUS 0x4022
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
/* O_NONBLOCK clashes with the bits used for socket types. Therefore we
* have to define SOCK_NONBLOCK to a different value here.
*/
diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h
index 866f760..2fc2af8 100644
--- a/arch/powerpc/include/asm/socket.h
+++ b/arch/powerpc/include/asm/socket.h
@@ -69,4 +69,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h
index fdff1e9..67b5c1b 100644
--- a/arch/s390/include/asm/socket.h
+++ b/arch/s390/include/asm/socket.h
@@ -70,4 +70,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _ASM_SOCKET_H */
diff --git a/arch/sparc/include/asm/socket.h b/arch/sparc/include/asm/socket.h
index 9d3fefc..8af1b64 100644
--- a/arch/sparc/include/asm/socket.h
+++ b/arch/sparc/include/asm/socket.h
@@ -58,6 +58,9 @@
#define SO_RXQ_OVFL 0x0024
+#define SO_WIFI_STATUS 0x0025
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x5001
#define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002
diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h
index cbdf2ff..bb06968 100644
--- a/arch/xtensa/include/asm/socket.h
+++ b/arch/xtensa/include/asm/socket.h
@@ -73,4 +73,7 @@
#define SO_RXQ_OVFL 40
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
+
#endif /* _XTENSA_SOCKET_H */
diff --git a/include/asm-generic/socket.h b/include/asm-generic/socket.h
index 56d2b13..22d4e36d 100644
--- a/include/asm-generic/socket.h
+++ b/include/asm-generic/socket.h
@@ -64,5 +64,8 @@
#define SO_DOMAIN 39
#define SO_RXQ_OVFL 40
-#define SO_RXQ_ALLOC 41
+#define SO_RXQ_ALLOC 101 /* non-upstreamed sockopt */
+
+#define SO_WIFI_STATUS 41
+#define SCM_WIFI_STATUS SO_WIFI_STATUS
#endif /* __ASM_GENERIC_SOCKET_H */
diff --git a/include/linux/errqueue.h b/include/linux/errqueue.h
index 034072c..c9f522b 100644
--- a/include/linux/errqueue.h
+++ b/include/linux/errqueue.h
@@ -17,7 +17,8 @@
#define SO_EE_ORIGIN_LOCAL 1
#define SO_EE_ORIGIN_ICMP 2
#define SO_EE_ORIGIN_ICMP6 3
-#define SO_EE_ORIGIN_TIMESTAMPING 4
+#define SO_EE_ORIGIN_TXSTATUS 4
+#define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS
#define SO_EE_OFFENDER(ee) ((struct sockaddr*)((ee)+1))
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 4b42eb7..e131195 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -213,8 +213,14 @@
/* device driver is going to provide hardware time stamp */
SKBTX_IN_PROGRESS = 1 << 2,
+ /* ensure the originating sk reference is available on driver level */
+ SKBTX_DRV_NEEDS_SK_REF = 1 << 3,
+
/* device driver supports TX zero-copy buffers */
- SKBTX_DEV_ZEROCOPY = 1 << 3,
+ SKBTX_DEV_ZEROCOPY = 1 << 4,
+
+ /* generate wifi status information (where possible) */
+ SKBTX_WIFI_STATUS = 1 << 5,
};
/*
@@ -349,6 +355,8 @@
* @ooo_okay: allow the mapping of a socket to a queue to be changed
* @l4_rxhash: indicate rxhash is a canonical 4-tuple hash over transport
* ports.
+ * @wifi_acked_valid: wifi_acked was set
+ * @wifi_acked: whether frame was acked on wifi or not
* @dma_cookie: a cookie to one of several possible DMA operations
* done by skb DMA functions
* @secmark: security marking
@@ -445,10 +453,11 @@
#endif
__u8 ooo_okay:1;
__u8 l4_rxhash:1;
+ __u8 wifi_acked_valid:1;
+ __u8 wifi_acked:1;
+ /* 10/12 bit hole (depending on ndisc_nodetype presence) */
kmemcheck_bitfield_end(flags2);
- /* 0/13 bit hole */
-
#ifdef CONFIG_NET_DMA
dma_cookie_t dma_cookie;
#endif
@@ -2305,6 +2314,15 @@
sw_tx_timestamp(skb);
}
+/**
+ * skb_complete_wifi_ack - deliver skb with wifi status
+ *
+ * @skb: the original outgoing packet
+ * @acked: ack status
+ *
+ */
+void skb_complete_wifi_ack(struct sk_buff *skb, bool acked);
+
extern __sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len);
extern __sum16 __skb_checksum_complete(struct sk_buff *skb);
diff --git a/include/net/sock.h b/include/net/sock.h
index 80ed0da..bd8102d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -564,6 +564,7 @@
SOCK_RXQ_OVFL,
SOCK_RXQ_ALLOC,
SOCK_ZEROCOPY, /* buffers from userspace */
+ SOCK_WIFI_STATUS, /* push wifi status to userspace */
};
static inline void sock_copy_flags(struct sock *nsk, struct sock *osk)
@@ -1717,6 +1718,8 @@
extern void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
struct sk_buff *skb);
+extern void __sock_recv_wifi_status(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb);
static __inline__ void
sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -1744,6 +1747,9 @@
__sock_recv_timestamp(msg, sk, skb);
else
sk->sk_stamp = kt;
+
+ if (sock_flag(sk, SOCK_WIFI_STATUS) && skb->wifi_acked_valid)
+ __sock_recv_wifi_status(msg, sk, skb);
}
extern void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
diff --git a/net/can/raw.c b/net/can/raw.c
index 46cca3a..cde1b4a 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -681,6 +681,9 @@
if (err < 0)
goto free_skb;
+ /* to be able to check the received tx sock reference in raw_rcv() */
+ skb_shinfo(skb)->tx_flags |= SKBTX_DRV_NEEDS_SK_REF;
+
skb->dev = dev;
skb->sk = sk;
diff --git a/net/core/dev.c b/net/core/dev.c
index 35ac2f6..31ca1a6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2079,6 +2079,25 @@
return 0;
}
+/*
+ * Try to orphan skb early, right before transmission by the device.
+ * We cannot orphan skb if tx timestamp is requested or the sk-reference
+ * is needed on driver level for other reasons, e.g. see net/can/raw.c
+ */
+static inline void skb_orphan_try(struct sk_buff *skb)
+{
+ struct sock *sk = skb->sk;
+
+ if (sk && !skb_shinfo(skb)->tx_flags) {
+ /* skb_tx_hash() wont be able to get sk.
+ * We copy sk_hash into skb->rxhash
+ */
+ if (!skb->rxhash)
+ skb->rxhash = sk->sk_hash;
+ skb_orphan(skb);
+ }
+}
+
static bool can_checksum_protocol(unsigned long features, __be16 protocol)
{
return ((features & NETIF_F_GEN_CSUM) ||
@@ -2163,6 +2182,8 @@
if (!list_empty(&ptype_all))
dev_queue_xmit_nit(skb, dev);
+ skb_orphan_try(skb);
+
features = netif_skb_features(skb);
if (vlan_tx_tag_present(skb) &&
@@ -2272,7 +2293,7 @@
if (skb->sk && skb->sk->sk_hash)
hash = skb->sk->sk_hash;
else
- hash = (__force u16) skb->protocol;
+ hash = (__force u16) skb->protocol ^ skb->rxhash;
hash = jhash_1word(hash, hashrnd);
return (u16) (((u64) hash * qcount) >> 32) + qoffset;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 9b9be63..e54b3c4 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3343,6 +3343,26 @@
}
EXPORT_SYMBOL_GPL(skb_tstamp_tx);
+void skb_complete_wifi_ack(struct sk_buff *skb, bool acked)
+{
+ struct sock *sk = skb->sk;
+ struct sock_exterr_skb *serr;
+ int err;
+
+ skb->wifi_acked_valid = 1;
+ skb->wifi_acked = acked;
+
+ serr = SKB_EXT_ERR(skb);
+ memset(serr, 0, sizeof(*serr));
+ serr->ee.ee_errno = ENOMSG;
+ serr->ee.ee_origin = SO_EE_ORIGIN_TXSTATUS;
+
+ err = sock_queue_err_skb(sk, skb);
+ if (err)
+ kfree_skb(skb);
+}
+EXPORT_SYMBOL_GPL(skb_complete_wifi_ack);
+
/**
* skb_partial_csum_set - set up and verify partial csum values for packet
diff --git a/net/core/sock.c b/net/core/sock.c
index 2d19e4e..39bde3c 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -736,12 +736,18 @@
case SO_RXQ_OVFL:
sock_valbool_flag(sk, SOCK_RXQ_OVFL, valbool);
break;
+
case SO_RXQ_ALLOC:
if (valbool)
sock_set_flag(sk, SOCK_RXQ_ALLOC);
else
sock_reset_flag(sk, SOCK_RXQ_ALLOC);
break;
+
+ case SO_WIFI_STATUS:
+ sock_valbool_flag(sk, SOCK_WIFI_STATUS, valbool);
+ break;
+
default:
ret = -ENOPROTOOPT;
break;
@@ -967,6 +973,10 @@
v.val = !!sock_flag(sk, SOCK_RXQ_ALLOC);
break;
+ case SO_WIFI_STATUS:
+ v.val = !!sock_flag(sk, SOCK_WIFI_STATUS);
+ break;
+
default:
return -ENOPROTOOPT;
}
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index cf98d62..274d150 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -380,6 +380,7 @@
skb_trim(skb, skb->dev->mtu);
}
skb->protocol = ETH_P_AF_IUCV;
+ skb_shinfo(skb)->tx_flags |= SKBTX_DRV_NEEDS_SK_REF;
nskb = skb_clone(skb, GFP_ATOMIC);
if (!nskb)
return -ENOMEM;
diff --git a/net/socket.c b/net/socket.c
index 9ba4f71..1eab220 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -538,6 +538,8 @@
*tx_flags |= SKBTX_HW_TSTAMP;
if (sock_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE))
*tx_flags |= SKBTX_SW_TSTAMP;
+ if (sock_flag(sk, SOCK_WIFI_STATUS))
+ *tx_flags |= SKBTX_WIFI_STATUS;
return 0;
}
EXPORT_SYMBOL(sock_tx_timestamp);
@@ -674,6 +676,22 @@
}
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
+void __sock_recv_wifi_status(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb)
+{
+ int ack;
+
+ if (!sock_flag(sk, SOCK_WIFI_STATUS))
+ return;
+ if (!skb->wifi_acked_valid)
+ return;
+
+ ack = skb->wifi_acked;
+
+ put_cmsg(msg, SOL_SOCKET, SCM_WIFI_STATUS, sizeof(ack), &ack);
+}
+EXPORT_SYMBOL_GPL(__sock_recv_wifi_status);
+
static inline void sock_recv_drops(struct msghdr *msg, struct sock *sk,
struct sk_buff *skb)
{
