Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / uapi / linux / auto_fs.h

diff --git a/kernel/include/uapi/linux/auto_fs.h b/kernel/include/uapi/linux/auto_fs.h
new file mode 100644 (file)
index 0000000..bb991df
--- /dev/null
+++ b/kernel/include/uapi/linux/auto_fs.h
@@ -0,0 +1,74 @@
+/* -*- linux-c -*- ------------------------------------------------------- *
+ *   
+ * linux/include/linux/auto_fs.h
+ *
+ *   Copyright 1997 Transmeta Corporation - All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+
+#ifndef _UAPI_LINUX_AUTO_FS_H
+#define _UAPI_LINUX_AUTO_FS_H
+
+#include <linux/types.h>
+#ifndef __KERNEL__
+#include <sys/ioctl.h>
+#endif /* __KERNEL__ */
+
+
+/* This file describes autofs v3 */
+#define AUTOFS_PROTO_VERSION   3
+
+/* Range of protocol versions defined */
+#define AUTOFS_MAX_PROTO_VERSION       AUTOFS_PROTO_VERSION
+#define AUTOFS_MIN_PROTO_VERSION       AUTOFS_PROTO_VERSION
+
+/*
+ * The wait_queue_token (autofs_wqt_t) is part of a structure which is passed
+ * back to the kernel via ioctl from userspace. On architectures where 32- and
+ * 64-bit userspace binaries can be executed it's important that the size of
+ * autofs_wqt_t stays constant between 32- and 64-bit Linux kernels so that we
+ * do not break the binary ABI interface by changing the structure size.
+ */
+#if defined(__ia64__) || defined(__alpha__) /* pure 64bit architectures */
+typedef unsigned long autofs_wqt_t;
+#else
+typedef unsigned int autofs_wqt_t;
+#endif
+
+/* Packet types */
+#define autofs_ptype_missing   0       /* Missing entry (mount request) */
+#define autofs_ptype_expire    1       /* Expire entry (umount request) */
+
+struct autofs_packet_hdr {
+       int proto_version;              /* Protocol version */
+       int type;                       /* Type of packet */
+};
+
+struct autofs_packet_missing {
+       struct autofs_packet_hdr hdr;
+        autofs_wqt_t wait_queue_token;
+       int len;
+       char name[NAME_MAX+1];
+};     
+
+/* v3 expire (via ioctl) */
+struct autofs_packet_expire {
+       struct autofs_packet_hdr hdr;
+       int len;
+       char name[NAME_MAX+1];
+};
+
+#define AUTOFS_IOC_READY      _IO(0x93,0x60)
+#define AUTOFS_IOC_FAIL       _IO(0x93,0x61)
+#define AUTOFS_IOC_CATATONIC  _IO(0x93,0x62)
+#define AUTOFS_IOC_PROTOVER   _IOR(0x93,0x63,int)
+#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93,0x64,compat_ulong_t)
+#define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93,0x64,unsigned long)
+#define AUTOFS_IOC_EXPIRE     _IOR(0x93,0x65,struct autofs_packet_expire)
+
+#endif /* _UAPI_LINUX_AUTO_FS_H */