1 files changed, 29 insertions, 0 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index ca887314aba9..ba1107977f2e 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -511,6 +511,35 @@ void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
 }
 EXPORT_SYMBOL_GPL(fuse_request_send);
 
+ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args)
+{
+        struct fuse_req *req;
+        ssize_t ret;
+
+        req = fuse_get_req(fc, 0);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
+
+        req->in.h.opcode = args->in.h.opcode;
+        req->in.h.nodeid = args->in.h.nodeid;
+        req->in.numargs = args->in.numargs;
+        memcpy(req->in.args, args->in.args,
+               args->in.numargs * sizeof(struct fuse_in_arg));
+        req->out.argvar = args->out.argvar;
+        req->out.numargs = args->out.numargs;
+        memcpy(req->out.args, args->out.args,
+               args->out.numargs * sizeof(struct fuse_arg));
+        fuse_request_send(fc, req);
+        ret = req->out.h.error;
+        if (!ret && args->out.argvar) {
+                BUG_ON(args->out.numargs != 1);
+                ret = req->out.args[0].size;
+        }
+        fuse_put_request(fc, req);
+
+        return ret;
+}
+
 static void fuse_request_send_nowait_locked(struct fuse_conn *fc,
                                             struct fuse_req *req)
 {