Introduce a common dev pointer in struct file

There are many dev pointers in a union in struct file. Prepare to
switch to a single one by introducing a new common one.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

diff --git a/include/lib.h b/include/lib.h
index dc56f52cda34394263b9abbb94ccffbf20fc7eee..60aaf1cdf86cccadb5862926985b475ab3a86391 100644 (file)
--- a/include/lib.h
+++ b/include/lib.h
@@ -188,6 +188,7 @@ struct file {
     off_t offset;
     union {
         int fd; /* Any fd from an upper layer. */
+        void *dev;
        struct {
            struct evtchn_port_list ports;
        } evtchn;