SUNRPC: Move TCP state flags into xprtsock.c

Move "XPRT_LAST_FRAG" and friends from xprt.h into xprtsock.c, and rename
them to use the naming scheme in use in xprtsock.c.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 0a0ad1c..3ff8230 100644 (file)
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -203,11 +203,6 @@ struct rpc_xprt {
        char *                  address_strings[RPC_DISPLAY_MAX];
 };
 
-#define XPRT_LAST_FRAG         (1 << 0)
-#define XPRT_COPY_RECM         (1 << 1)
-#define XPRT_COPY_XID          (1 << 2)
-#define XPRT_COPY_DATA         (1 << 3)
-
 #ifdef __KERNEL__
 
 /*

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 417bd91..c737acf 100644 (file)
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -147,6 +147,14 @@ struct sock_xprt {
                                tcp_flags;
 };
 
+/*
+ * TCP receive state flags
+ */
+#define TCP_RCV_LAST_FRAG      (1UL << 0)
+#define TCP_RCV_COPY_FRAGHDR   (1UL << 1)
+#define TCP_RCV_COPY_XID       (1UL << 2)
+#define TCP_RCV_COPY_DATA      (1UL << 3)
+
 static void xs_format_peer_addresses(struct rpc_xprt *xprt)
 {
        struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr;
@@ -653,12 +661,12 @@ static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, skb_reader_t *desc
 
        transport->tcp_reclen = ntohl(transport->tcp_fraghdr);
        if (transport->tcp_reclen & RPC_LAST_STREAM_FRAGMENT)
-               transport->tcp_flags |= XPRT_LAST_FRAG;
+               transport->tcp_flags |= TCP_RCV_LAST_FRAG;
        else
-               transport->tcp_flags &= ~XPRT_LAST_FRAG;
+               transport->tcp_flags &= ~TCP_RCV_LAST_FRAG;
        transport->tcp_reclen &= RPC_FRAGMENT_SIZE_MASK;
 
-       transport->tcp_flags &= ~XPRT_COPY_RECM;
+       transport->tcp_flags &= ~TCP_RCV_COPY_FRAGHDR;
        transport->tcp_offset = 0;
 
        /* Sanity check of the record length */
@@ -674,11 +682,11 @@ static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, skb_reader_t *desc
 static void xs_tcp_check_fraghdr(struct sock_xprt *transport)
 {
        if (transport->tcp_offset == transport->tcp_reclen) {
-               transport->tcp_flags |= XPRT_COPY_RECM;
+               transport->tcp_flags |= TCP_RCV_COPY_FRAGHDR;
                transport->tcp_offset = 0;
-               if (transport->tcp_flags & XPRT_LAST_FRAG) {
-                       transport->tcp_flags &= ~XPRT_COPY_DATA;
-                       transport->tcp_flags |= XPRT_COPY_XID;
+               if (transport->tcp_flags & TCP_RCV_LAST_FRAG) {
+                       transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
+                       transport->tcp_flags |= TCP_RCV_COPY_XID;
                        transport->tcp_copied = 0;
                }
        }
@@ -696,8 +704,8 @@ static inline void xs_tcp_read_xid(struct sock_xprt *transport, skb_reader_t *de
        transport->tcp_offset += used;
        if (used != len)
                return;
-       transport->tcp_flags &= ~XPRT_COPY_XID;
-       transport->tcp_flags |= XPRT_COPY_DATA;
+       transport->tcp_flags &= ~TCP_RCV_COPY_XID;
+       transport->tcp_flags |= TCP_RCV_COPY_DATA;
        transport->tcp_copied = 4;
        dprintk("RPC:      reading reply for XID %08x\n",
                        ntohl(transport->tcp_xid));
@@ -716,7 +724,7 @@ static inline void xs_tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc
        spin_lock(&xprt->transport_lock);
        req = xprt_lookup_rqst(xprt, transport->tcp_xid);
        if (!req) {
-               transport->tcp_flags &= ~XPRT_COPY_DATA;
+               transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
                dprintk("RPC:      XID %08x request not found!\n",
                                ntohl(transport->tcp_xid));
                spin_unlock(&xprt->transport_lock);
@@ -747,13 +755,13 @@ static inline void xs_tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc
                /* Error when copying to the receive buffer,
                 * usually because we weren't able to allocate
                 * additional buffer pages. All we can do now
-                * is turn off XPRT_COPY_DATA, so the request
+                * is turn off TCP_RCV_COPY_DATA, so the request
                 * will not receive any additional updates,
                 * and time out.
                 * Any remaining data from this record will
                 * be discarded.
                 */
-               transport->tcp_flags &= ~XPRT_COPY_DATA;
+               transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
                dprintk("RPC:      XID %08x truncated request\n",
                                ntohl(transport->tcp_xid));
                dprintk("RPC:      xprt = %p, tcp_copied = %lu, tcp_offset = %u, tcp_reclen = %u\n",
@@ -769,14 +777,14 @@ static inline void xs_tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc
                                transport->tcp_reclen);
 
        if (transport->tcp_copied == req->rq_private_buf.buflen)
-               transport->tcp_flags &= ~XPRT_COPY_DATA;
+               transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
        else if (transport->tcp_offset == transport->tcp_reclen) {
-               if (transport->tcp_flags & XPRT_LAST_FRAG)
-                       transport->tcp_flags &= ~XPRT_COPY_DATA;
+               if (transport->tcp_flags & TCP_RCV_LAST_FRAG)
+                       transport->tcp_flags &= ~TCP_RCV_COPY_DATA;
        }
 
 out:
-       if (!(transport->tcp_flags & XPRT_COPY_DATA))
+       if (!(transport->tcp_flags & TCP_RCV_COPY_DATA))
                xprt_complete_rqst(req->rq_task, transport->tcp_copied);
        spin_unlock(&xprt->transport_lock);
        xs_tcp_check_fraghdr(transport);
@@ -810,17 +818,17 @@ static int xs_tcp_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, uns
        do {
                /* Read in a new fragment marker if necessary */
                /* Can we ever really expect to get completely empty fragments? */
-               if (transport->tcp_flags & XPRT_COPY_RECM) {
+               if (transport->tcp_flags & TCP_RCV_COPY_FRAGHDR) {
                        xs_tcp_read_fraghdr(xprt, &desc);
                        continue;
                }
                /* Read in the xid if necessary */
-               if (transport->tcp_flags & XPRT_COPY_XID) {
+               if (transport->tcp_flags & TCP_RCV_COPY_XID) {
                        xs_tcp_read_xid(transport, &desc);
                        continue;
                }
                /* Read in the request data */
-               if (transport->tcp_flags & XPRT_COPY_DATA) {
+               if (transport->tcp_flags & TCP_RCV_COPY_DATA) {
                        xs_tcp_read_request(xprt, &desc);
                        continue;
                }
@@ -886,7 +894,8 @@ static void xs_tcp_state_change(struct sock *sk)
                        transport->tcp_offset = 0;
                        transport->tcp_reclen = 0;
                        transport->tcp_copied = 0;
-                       transport->tcp_flags = XPRT_COPY_RECM | XPRT_COPY_XID;
+                       transport->tcp_flags =
+                               TCP_RCV_COPY_FRAGHDR | TCP_RCV_COPY_XID;
 
                        xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO;
                        xprt_wake_pending_tasks(xprt, 0);