First round of fixes for re-implemented VFS message queues

fs/mqueue/mq_close.c

@@ -149,7 +149,7 @@ int mq_close(mqd_t mqdes)
 
        /* Decrement the reference count on the inode */
 
-       mq_release(inode);
+       mq_inode_release(inode);
      }
 
   return OK;
@@ -169,7 +169,7 @@ int mq_close(mqd_t mqdes)
  *
  ****************************************************************************/
 
-void mq_release(FAR struct inode *inode)
+void mq_inode_release(FAR struct inode *inode)
 {
   /* Decrement the reference count on the inode */
 

fs/mqueue/mq_open.c

@@ -231,6 +231,7 @@ mqd_t mq_open(const char *mq_name, int oflags, ...)
 
           /* Bind the message queue and the inode structure */
 
+          INODE_SET_MQUEUE(inode);
           inode->u.i_mqueue = msgq;
           msgq->inode       = inode;
         }

fs/mqueue/mq_unlink.c

@@ -151,14 +151,15 @@ int mq_unlink(FAR const char *mq_name)
   UNUSED(ret);
 
   /* Now we do not release the reference count in the normal way (by calling
-   * inode release.  Rather, we call sem_close().  sem_close will decrement
-   * the reference count on the inode.  But it will also free the message queue
-   * if that reference count decrements to zero.  Since we hold one reference,
-   * that can only occur if the message queue is not in-use.
+   * inode release.  Rather, we call mq_inode_release().  mq_inode_release
+   * will decrement the reference count on the inode.  But it will also free
+   * the message queue if that reference count decrements to zero.  Since we
+   * hold one reference, that can only occur if the message queue is not
+   * in-use.
    */
 
   inode_semgive();
-  mq_release(inode);
+  mq_inode_release(inode);
   return OK;
 
 errout_with_semaphore:

fs/mqueue/mqueue.h

@@ -89,7 +89,7 @@ extern "C"
  *
  ****************************************************************************/
 
-void mq_release(FAR struct inode *inode);
+void mq_inode_release(FAR struct inode *inode);
 
 #undef EXTERN
 #ifdef __cplusplus