RDS: Inline rdma_prepare into cmsg_rdma_args
cmsg_rdma_args just calls rdma_prepare and does a little
arg checking -- not quite enough to justify its existence.
Plus, it is the only caller of rdma_prepare().
Signed-off-by: Andy Grover <andy.grover@oracle.com>
diff --git a/net/rds/rdma.c b/net/rds/rdma.c
index 4df545a..91967c8 100644
--- a/net/rds/rdma.c
+++ b/net/rds/rdma.c
@@ -497,12 +497,13 @@
}
/*
- * args is a pointer to an in-kernel copy in the sendmsg cmsg.
+ * The application asks for a RDMA transfer.
+ * Extract all arguments and set up the rdma_op
*/
-static int rds_rdma_prepare(struct rds_message *rm,
- struct rds_sock *rs,
- struct rds_rdma_args *args)
+int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
+ struct cmsghdr *cmsg)
{
+ struct rds_rdma_args *args;
struct rds_iovec vec;
struct rds_rdma_op *op = &rm->rdma.m_rdma_op;
unsigned int nr_pages;
@@ -513,6 +514,11 @@
unsigned int i, j;
int ret = 0;
+ if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct rds_rdma_args))
+ || rm->rdma.m_rdma_op.r_active)
+ return -EINVAL;
+
+ args = CMSG_DATA(cmsg);
if (rs->rs_bound_addr == 0) {
ret = -ENOTCONN; /* XXX not a great errno */
@@ -623,7 +629,6 @@
op->r_nents += nr;
}
-
if (nr_bytes > args->remote_vec.bytes) {
rdsdebug("RDS nr_bytes %u remote_bytes %u do not match\n",
nr_bytes,
@@ -639,28 +644,9 @@
if (ret)
rds_rdma_free_op(op);
- return ret;
-}
-
-/*
- * The application asks for a RDMA transfer.
- * Extract all arguments and set up the rdma_op
- */
-int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
- struct cmsghdr *cmsg)
-{
- int ret;
-
- if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct rds_rdma_args)) ||
- rm->rdma.m_rdma_op.r_active)
- return -EINVAL;
-
- ret = rds_rdma_prepare(rm, rs, CMSG_DATA(cmsg));
- if (ret)
- return ret;
-
rds_stats_inc(s_send_rdma);
- return 0;
+
+ return ret;
}
/*