SUNRPC: Allocate a private data area for socket-specific rpc_xprt fields
When setting up a new transport instance, allocate enough memory for an
rpc_xprt and a private area. As part of the same memory allocation, it
will be easy to find one, given a pointer to the other.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index ec3462f..dc4a21f 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -125,6 +125,10 @@
}
#endif
+struct sock_xprt {
+ struct rpc_xprt xprt;
+};
+
static void xs_format_peer_addresses(struct rpc_xprt *xprt)
{
struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr;
@@ -1343,17 +1347,19 @@
static struct rpc_xprt *xs_setup_xprt(struct sockaddr *addr, size_t addrlen, unsigned int slot_table_size)
{
struct rpc_xprt *xprt;
+ struct sock_xprt *new;
if (addrlen > sizeof(xprt->addr)) {
dprintk("RPC: xs_setup_xprt: address too large\n");
return ERR_PTR(-EBADF);
}
- xprt = kzalloc(sizeof(struct rpc_xprt), GFP_KERNEL);
- if (xprt == NULL) {
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (new == NULL) {
dprintk("RPC: xs_setup_xprt: couldn't allocate rpc_xprt\n");
return ERR_PTR(-ENOMEM);
}
+ xprt = &new->xprt;
xprt->max_reqs = slot_table_size;
xprt->slot = kcalloc(xprt->max_reqs, sizeof(struct rpc_rqst), GFP_KERNEL);
