[PATCH net 5/7] rxrpc: Add a private skb flag to indicate transmission-phase skbs
From: David Howells <dhowells@redhat.com>
Date: 2019-08-29 13:08:12
Also in:
lkml
Subsystem:
networking [general], rxrpc sockets (af_rxrpc), the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Howells, Marc Dionne, Linus Torvalds
Add a flag in the private data on an skbuff to indicate that this is a transmission-phase buffer rather than a receive-phase buffer. Signed-off-by: David Howells <dhowells@redhat.com> --- net/rxrpc/ar-internal.h | 1 + net/rxrpc/sendmsg.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 20d7907a5bc6..63d3a91ce5e9 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h@@ -188,6 +188,7 @@ struct rxrpc_skb_priv { u8 nr_subpackets; /* Number of subpackets */ u8 rx_flags; /* Received packet flags */ #define RXRPC_SKB_INCL_LAST 0x01 /* - Includes last packet */ +#define RXRPC_SKB_TX_BUFFER 0x02 /* - Is transmit buffer */ union { int remain; /* amount of space remaining for next write */
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index bae14438f869..472dc3b7d91f 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c@@ -336,6 +336,8 @@ static int rxrpc_send_data(struct rxrpc_sock *rx, if (!skb) goto maybe_error; + sp = rxrpc_skb(skb); + sp->rx_flags |= RXRPC_SKB_TX_BUFFER; rxrpc_new_skb(skb, rxrpc_skb_tx_new); _debug("ALLOC SEND %p", skb);
@@ -346,7 +348,6 @@ static int rxrpc_send_data(struct rxrpc_sock *rx, skb_reserve(skb, call->conn->security_size); skb->len += call->conn->security_size; - sp = rxrpc_skb(skb); sp->remain = chunk; if (sp->remain > skb_tailroom(skb)) sp->remain = skb_tailroom(skb);