Move the details of how to create and destroy rpcrdma_req and
rpcrdma_rep structures into helper functions.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/xprtrdma/verbs.c | 148 ++++++++++++++++++++++++++++---------------
1 file changed, 95 insertions(+), 53 deletions(-)
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index fd71501..24ea6dd 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1075,6 +1075,69 @@ rpcrdma_ep_disconnect(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia)
}
}
+static struct rpcrdma_req *
+rpcrdma_create_req(struct rpcrdma_xprt *r_xprt)
+{
+ struct rpcrdma_create_data_internal *cdata = &r_xprt->rx_data;
+ size_t wlen = 1 << fls(cdata->inline_wsize +
+ sizeof(struct rpcrdma_req));
+ struct rpcrdma_ia *ia = &r_xprt->rx_ia;
+ struct rpcrdma_req *req;
+ int rc;
+
+ rc = -ENOMEM;
+ req = kmalloc(wlen, GFP_KERNEL);
+ if (req == NULL)
+ goto out;
+ memset(req, 0, sizeof(struct rpcrdma_req));
+
+ rc = rpcrdma_register_internal(ia, req->rl_base, wlen -
+ offsetof(struct rpcrdma_req, rl_base),
+ &req->rl_handle, &req->rl_iov);
+ if (rc)
+ goto out_free;
+
+ req->rl_size = wlen - sizeof(struct rpcrdma_req);
+ req->rl_buffer = &r_xprt->rx_buf;
+ return req;
+
+out_free:
+ kfree(req);
+out:
+ return ERR_PTR(rc);
+}
+
+static struct rpcrdma_rep *
+rpcrdma_create_rep(struct rpcrdma_xprt *r_xprt)
+{
+ struct rpcrdma_create_data_internal *cdata = &r_xprt->rx_data;
+ size_t rlen = 1 << fls(cdata->inline_rsize +
+ sizeof(struct rpcrdma_rep));
+ struct rpcrdma_ia *ia = &r_xprt->rx_ia;
+ struct rpcrdma_rep *rep;
+ int rc;
+
+ rc = -ENOMEM;
+ rep = kmalloc(rlen, GFP_KERNEL);
+ if (rep == NULL)
+ goto out;
+ memset(rep, 0, sizeof(struct rpcrdma_rep));
+
+ rc = rpcrdma_register_internal(ia, rep->rr_base, rlen -
+ offsetof(struct rpcrdma_rep, rr_base),
+ &rep->rr_handle, &rep->rr_iov);
+ if (rc)
+ goto out_free;
+
+ rep->rr_buffer = &r_xprt->rx_buf;
+ return rep;
+
+out_free:
+ kfree(rep);
+out:
+ return ERR_PTR(rc);
+}
+
static int
rpcrdma_init_fmrs(struct rpcrdma_ia *ia, struct rpcrdma_buffer *buf)
{
@@ -1167,7 +1230,7 @@ rpcrdma_buffer_create(struct rpcrdma_xprt *r_xprt)
struct rpcrdma_ia *ia = &r_xprt->rx_ia;
struct rpcrdma_create_data_internal *cdata = &r_xprt->rx_data;
char *p;
- size_t len, rlen, wlen;
+ size_t len;
int i, rc;
buf->rb_max_requests = cdata->max_requests;
@@ -1227,62 +1290,29 @@ rpcrdma_buffer_create(struct rpcrdma_xprt *r_xprt)
break;
}
- /*
- * Allocate/init the request/reply buffers. Doing this
- * using kmalloc for now -- one for each buf.
- */
- wlen = 1 << fls(cdata->inline_wsize + sizeof(struct rpcrdma_req));
- rlen = 1 << fls(cdata->inline_rsize + sizeof(struct rpcrdma_rep));
- dprintk("RPC: %s: wlen = %zu, rlen = %zu\n",
- __func__, wlen, rlen);
-
for (i = 0; i < buf->rb_max_requests; i++) {
struct rpcrdma_req *req;
struct rpcrdma_rep *rep;
- req = kmalloc(wlen, GFP_KERNEL);
- if (req == NULL) {
+ req = rpcrdma_create_req(r_xprt);
+ if (IS_ERR(req)) {
dprintk("RPC: %s: request buffer %d alloc"
" failed\n", __func__, i);
- rc = -ENOMEM;
+ rc = PTR_ERR(req);
goto out;
}
- memset(req, 0, sizeof(struct rpcrdma_req));
buf->rb_send_bufs[i] = req;
- buf->rb_send_bufs[i]->rl_buffer = buf;
-
- rc = rpcrdma_register_internal(ia, req->rl_base,
- wlen - offsetof(struct rpcrdma_req, rl_base),
- &buf->rb_send_bufs[i]->rl_handle,
- &buf->rb_send_bufs[i]->rl_iov);
- if (rc)
- goto out;
- buf->rb_send_bufs[i]->rl_size = wlen -
- sizeof(struct rpcrdma_req);
-
- rep = kmalloc(rlen, GFP_KERNEL);
- if (rep == NULL) {
+ rep = rpcrdma_create_rep(r_xprt);
+ if (IS_ERR(rep)) {
dprintk("RPC: %s: reply buffer %d alloc failed\n",
__func__, i);
- rc = -ENOMEM;
+ rc = PTR_ERR(rep);
goto out;
}
- memset(rep, 0, sizeof(struct rpcrdma_rep));
buf->rb_recv_bufs[i] = rep;
- buf->rb_recv_bufs[i]->rr_buffer = buf;
-
- rc = rpcrdma_register_internal(ia, rep->rr_base,
- rlen - offsetof(struct rpcrdma_rep, rr_base),
- &buf->rb_recv_bufs[i]->rr_handle,
- &buf->rb_recv_bufs[i]->rr_iov);
- if (rc)
- goto out;
-
}
- dprintk("RPC: %s: max_requests %d\n",
- __func__, buf->rb_max_requests);
- /* done */
+
return 0;
out:
rpcrdma_buffer_destroy(buf);
@@ -1290,6 +1320,26 @@ out:
}
static void
+rpcrdma_destroy_rep(struct rpcrdma_ia *ia, struct rpcrdma_rep *rep)
+{
+ if (!rep)
+ return;
+
+ rpcrdma_deregister_internal(ia, rep->rr_handle, &rep->rr_iov);
+ kfree(rep);
+}
+
+static void
+rpcrdma_destroy_req(struct rpcrdma_ia *ia, struct rpcrdma_req *req)
+{
+ if (!req)
+ return;
+
+ rpcrdma_deregister_internal(ia, req->rl_handle, &req->rl_iov);
+ kfree(req);
+}
+
+static void
rpcrdma_destroy_fmrs(struct rpcrdma_buffer *buf)
{
struct rpcrdma_mw *r;
@@ -1344,18 +1394,10 @@ rpcrdma_buffer_destroy(struct rpcrdma_buffer *buf)
dprintk("RPC: %s: entering\n", __func__);
for (i = 0; i < buf->rb_max_requests; i++) {
- if (buf->rb_recv_bufs && buf->rb_recv_bufs[i]) {
- rpcrdma_deregister_internal(ia,
- buf->rb_recv_bufs[i]->rr_handle,
- &buf->rb_recv_bufs[i]->rr_iov);
- kfree(buf->rb_recv_bufs[i]);
- }
- if (buf->rb_send_bufs && buf->rb_send_bufs[i]) {
- rpcrdma_deregister_internal(ia,
- buf->rb_send_bufs[i]->rl_handle,
- &buf->rb_send_bufs[i]->rl_iov);
- kfree(buf->rb_send_bufs[i]);
- }
+ if (buf->rb_recv_bufs)
+ rpcrdma_destroy_rep(ia, buf->rb_recv_bufs[i]);
+ if (buf->rb_send_bufs)
+ rpcrdma_destroy_req(ia, buf->rb_send_bufs[i]);
}
switch (ia->ri_memreg_strategy) {
--
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