Added the fs_info.h header needed for some stuff in the VFS.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@392 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/kernel/fs_info.h

@@ -0,0 +1,49 @@
+/* fs_info.h
+**
+** functions/definitions for general file system information
+*/
+
+#ifndef _FS_INFO_H
+#define	_FS_INFO_H
+
+#include <OS.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* fs_info.flags */
+#define	B_FS_IS_READONLY		0x00000001
+#define	B_FS_IS_REMOVABLE		0x00000002
+#define	B_FS_IS_PERSISTENT		0x00000004
+#define	B_FS_IS_SHARED			0x00000008
+#define	B_FS_HAS_MIME			0x00010000
+#define	B_FS_HAS_ATTR			0x00020000
+#define	B_FS_HAS_QUERY			0x00040000
+
+struct fs_info {
+	dev_t	dev;								/* fs dev_t */
+	ino_t	root;								/* root ino_t */
+	uint32	flags;								/* file system flags */
+	off_t	block_size;							/* fundamental block size */
+	off_t	io_size;							/* optimal io size */
+	off_t	total_blocks;						/* total number of blocks */
+	off_t	free_blocks;						/* number of free blocks */
+	off_t	total_nodes;						/* total number of nodes */
+	off_t	free_nodes;							/* number of free nodes */
+	char	device_name[128];					/* device holding fs */
+	char	volume_name[B_FILE_NAME_LENGTH];	/* volume name */
+	char	fsh_name[B_OS_NAME_LENGTH];			/* name of fs handler */
+};
+
+typedef struct fs_info fs_info;
+
+extern dev_t	dev_for_path(const char *path);
+extern dev_t	next_dev(int32 *pos);
+extern int		fs_stat_dev(dev_t dev, fs_info *info);
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif	/* _FS_INFO_H */