qemu_ram_free: Implement it

Now that we can support a ram_addr_t space with holes, we can implement
qemu_ram_free().

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/cpu-all.h b/cpu-all.h
index 5d8342bac..224ca40c1 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -867,6 +867,9 @@ typedef struct RAMBlock {
     ram_addr_t length;
     char idstr[256];
     QLIST_ENTRY(RAMBlock) next;
+#if defined(__linux__) && !defined(TARGET_S390X)
+    int fd;
+#endif
 } RAMBlock;
 
 typedef struct RAMList {