diff options
Diffstat (limited to 'net/rxrpc')
| -rw-r--r-- | net/rxrpc/ar-internal.h | 15 | ||||
| -rw-r--r-- | net/rxrpc/call_accept.c | 4 | ||||
| -rw-r--r-- | net/rxrpc/output.c | 5 |
3 files changed, 17 insertions, 7 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index 5bd3922c310d..376e33dce8c1 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -361,12 +361,15 @@ struct rxrpc_local { struct list_head new_client_calls; /* Newly created client calls need connection */ spinlock_t client_call_lock; /* Lock for ->new_client_calls */ struct sockaddr_rxrpc srx; /* local address */ - /* Provide a kvec table sufficiently large to manage either a DATA - * packet with a maximum set of jumbo subpackets or a PING ACK padded - * out to 64K with zeropages for PMTUD. - */ - struct kvec kvec[1 + RXRPC_MAX_NR_JUMBO > 3 + 16 ? - 1 + RXRPC_MAX_NR_JUMBO : 3 + 16]; + union { + /* Provide a kvec table sufficiently large to manage either a + * DATA packet with a maximum set of jumbo subpackets or a PING + * ACK padded out to 64K with zeropages for PMTUD. + */ + struct kvec kvec[1 + RXRPC_MAX_NR_JUMBO > 3 + 16 ? + 1 + RXRPC_MAX_NR_JUMBO : 3 + 16]; + struct bio_vec bvec[3 + 16]; + }; }; /* diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c index a4b363b47cca..49fccee1a726 100644 --- a/net/rxrpc/call_accept.c +++ b/net/rxrpc/call_accept.c @@ -149,6 +149,7 @@ static int rxrpc_service_prealloc_one(struct rxrpc_sock *rx, id_in_use: write_unlock(&rx->call_lock); + rxrpc_prefail_call(call, RXRPC_CALL_LOCAL_ERROR, -EBADSLT); rxrpc_cleanup_call(call); _leave(" = -EBADSLT"); return -EBADSLT; @@ -254,6 +255,9 @@ static struct rxrpc_call *rxrpc_alloc_incoming_call(struct rxrpc_sock *rx, unsigned short call_tail, conn_tail, peer_tail; unsigned short call_count, conn_count; + if (!b) + return NULL; + /* #calls >= #conns >= #peers must hold true. */ call_head = smp_load_acquire(&b->call_backlog_head); call_tail = b->call_backlog_tail; diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c index 0af19bcdc80a..ef7b3096c95e 100644 --- a/net/rxrpc/output.c +++ b/net/rxrpc/output.c @@ -924,7 +924,7 @@ void rxrpc_send_response(struct rxrpc_connection *conn, struct sk_buff *response { struct rxrpc_skb_priv *sp = rxrpc_skb(response); struct scatterlist sg[16]; - struct bio_vec bvec[16]; + struct bio_vec *bvec = conn->local->bvec; struct msghdr msg; size_t len = sp->resp.len; __be32 wserial; @@ -938,6 +938,9 @@ void rxrpc_send_response(struct rxrpc_connection *conn, struct sk_buff *response if (ret < 0) goto fail; nr_sg = ret; + ret = -EIO; + if (WARN_ON_ONCE(nr_sg > ARRAY_SIZE(conn->local->bvec))) + goto fail; for (int i = 0; i < nr_sg; i++) bvec_set_page(&bvec[i], sg_page(&sg[i]), sg[i].length, sg[i].offset); |