Add changes matching dwrite_q review

src/fs_io.cc

@@ -425,13 +425,7 @@ void
 file_read(int fd, char *buf, int req_len, off_t offset, DRCB * handler, void *client_data)
 {
     assert(fd >= 0);
-    auto *ctrl_dat = new dread_ctrl;
-    ctrl_dat->fd = fd;
-    ctrl_dat->offset = offset;
-    ctrl_dat->req_len = req_len;
-    ctrl_dat->buf = buf;
-    ctrl_dat->handler = handler;
-    ctrl_dat->client_data = cbdataReference(client_data);
+    const auto ctrl_dat = new dread_ctrl(fd, offset, buf, req_len, handler, cbdataReference(client_data));
     diskHandleRead(fd, ctrl_dat);
 }
 

src/fs_io.h

@@ -20,8 +20,18 @@ class MemBuf;
 class dread_ctrl
 {
     MEMPROXY_CLASS(dread_ctrl);
-
 public:
+    dread_ctrl(int aFd, off_t aOffset, char *aBuf, int aLen, DRCB *aHandler, void *aData) :
+        fd(aFd),
+        offset(aOffset),
+        req_len(aLen),
+        buf(aBuf),
+        handler(aHandler),
+        client_data(aData)
+    {}
+    dread_ctrl(dread_ctrl &&) = delete; // no copying or moving of any kind
+    ~dread_ctrl() = default;
+
     int fd = -1;
     off_t offset = 0;
     int req_len = 0;