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Diffstat (limited to 'fs/lockd/svc4proc.c')
-rw-r--r--fs/lockd/svc4proc.c157
1 files changed, 55 insertions, 102 deletions
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index b10f913aa06..a2dd9ccb9b3 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -21,10 +21,6 @@
#define NLMDBG_FACILITY NLMDBG_CLIENT
-static u32 nlm4svc_callback(struct svc_rqst *, u32, struct nlm_res *);
-
-static const struct rpc_call_ops nlm4svc_callback_ops;
-
/*
* Obtain client and file from arguments
*/
@@ -234,83 +230,89 @@ nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
}
/*
+ * This is the generic lockd callback for async RPC calls
+ */
+static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
+{
+ dprintk("lockd: %4d callback returned %d\n", task->tk_pid,
+ -task->tk_status);
+}
+
+static void nlm4svc_callback_release(void *data)
+{
+ nlm_release_call(data);
+}
+
+static const struct rpc_call_ops nlm4svc_callback_ops = {
+ .rpc_call_done = nlm4svc_callback_exit,
+ .rpc_release = nlm4svc_callback_release,
+};
+
+/*
* `Async' versions of the above service routines. They aren't really,
* because we send the callback before the reply proper. I hope this
* doesn't break any clients.
*/
-static int
-nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
- void *resp)
+static int nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
+ int (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res *))
{
- struct nlm_res res;
- u32 stat;
+ struct nlm_host *host;
+ struct nlm_rqst *call;
+ int stat;
- dprintk("lockd: TEST_MSG called\n");
- memset(&res, 0, sizeof(res));
+ host = nlmsvc_lookup_host(rqstp);
+ if (host == NULL)
+ return rpc_system_err;
+
+ call = nlm_alloc_call(host);
+ if (call == NULL)
+ return rpc_system_err;
- if ((stat = nlm4svc_proc_test(rqstp, argp, &res)) == 0)
- stat = nlm4svc_callback(rqstp, NLMPROC_TEST_RES, &res);
- return stat;
+ stat = func(rqstp, argp, &call->a_res);
+ if (stat != 0) {
+ nlm_release_call(call);
+ return stat;
+ }
+
+ call->a_flags = RPC_TASK_ASYNC;
+ if (nlm_async_reply(call, proc, &nlm4svc_callback_ops) < 0)
+ return rpc_system_err;
+ return rpc_success;
}
-static int
-nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static int nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
void *resp)
{
- struct nlm_res res;
- u32 stat;
+ dprintk("lockd: TEST_MSG called\n");
+ return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, argp, nlm4svc_proc_test);
+}
+static int nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+ void *resp)
+{
dprintk("lockd: LOCK_MSG called\n");
- memset(&res, 0, sizeof(res));
-
- if ((stat = nlm4svc_proc_lock(rqstp, argp, &res)) == 0)
- stat = nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, &res);
- return stat;
+ return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlm4svc_proc_lock);
}
-static int
-nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static int nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
void *resp)
{
- struct nlm_res res;
- u32 stat;
-
dprintk("lockd: CANCEL_MSG called\n");
- memset(&res, 0, sizeof(res));
-
- if ((stat = nlm4svc_proc_cancel(rqstp, argp, &res)) == 0)
- stat = nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, &res);
- return stat;
+ return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlm4svc_proc_cancel);
}
-static int
-nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static int nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
void *resp)
{
- struct nlm_res res;
- u32 stat;
-
dprintk("lockd: UNLOCK_MSG called\n");
- memset(&res, 0, sizeof(res));
-
- if ((stat = nlm4svc_proc_unlock(rqstp, argp, &res)) == 0)
- stat = nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, &res);
- return stat;
+ return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlm4svc_proc_unlock);
}
-static int
-nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
+static int nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
void *resp)
{
- struct nlm_res res;
- u32 stat;
-
dprintk("lockd: GRANTED_MSG called\n");
- memset(&res, 0, sizeof(res));
-
- if ((stat = nlm4svc_proc_granted(rqstp, argp, &res)) == 0)
- stat = nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, &res);
- return stat;
+ return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, argp, nlm4svc_proc_granted);
}
/*
@@ -472,55 +474,6 @@ nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res *argp,
/*
- * This is the generic lockd callback for async RPC calls
- */
-static u32
-nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
-{
- struct nlm_host *host;
- struct nlm_rqst *call;
-
- if (!(call = nlmclnt_alloc_call()))
- return rpc_system_err;
-
- host = nlmclnt_lookup_host(&rqstp->rq_addr,
- rqstp->rq_prot, rqstp->rq_vers);
- if (!host) {
- kfree(call);
- return rpc_system_err;
- }
-
- call->a_flags = RPC_TASK_ASYNC;
- call->a_host = host;
- memcpy(&call->a_args, resp, sizeof(*resp));
-
- if (nlmsvc_async_call(call, proc, &nlm4svc_callback_ops) < 0)
- goto error;
-
- return rpc_success;
- error:
- kfree(call);
- nlm_release_host(host);
- return rpc_system_err;
-}
-
-static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
-{
- struct nlm_rqst *call = data;
-
- if (task->tk_status < 0) {
- dprintk("lockd: %4d callback failed (errno = %d)\n",
- task->tk_pid, -task->tk_status);
- }
- nlm_release_host(call->a_host);
- kfree(call);
-}
-
-static const struct rpc_call_ops nlm4svc_callback_ops = {
- .rpc_call_done = nlm4svc_callback_exit,
-};
-
-/*
* NLM Server procedures.
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 12:33:22 +0000