common upgrades

Change-Id: I567fc15845b601019d346569ecfcef4f89687fd2

include/sys/svrctl.h

@@ -0,0 +1,32 @@
+/*
+sys/svrctl.h
+
+Created:	Feb 15, 1994 by Philip Homburg <philip@cs.vu.nl>
+*/
+
+#ifndef _SYS__SVRCTL_H
+#define _SYS__SVRCTL_H
+
+#include <sys/types.h>
+
+/* Server control commands have the same encoding as the commands for ioctls. */
+#include <minix/ioctl.h>
+
+/* PM controls. */
+#define PMGETPARAM	_IOW('M',  5, struct sysgetenv)
+#define PMSETPARAM	_IOR('M',  7, struct sysgetenv)
+
+/* VFS controls */
+#define VFSSETPARAM	_IOR('M', 130, struct sysgetenv)
+#define VFSGETPARAM	_IOR('M', 131, struct sysgetenv)
+
+struct sysgetenv {
+	char		*key;		/* Name requested. */
+	size_t		keylen;		/* Length of name including \0. */
+	char		*val;		/* Buffer for returned data. */
+	size_t		vallen;		/* Size of return data buffer. */
+};
+
+int svrctl(int _request, void *_data);
+
+#endif /* _SYS__SVRCTL_H */