patch-2.1.120 linux/include/linux/qnx4_fs.h

• Lines: 124
• Date: Mon Aug 31 13:01:35 1998
• Orig file: v2.1.119/linux/include/linux/qnx4_fs.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.119/linux/include/linux/qnx4_fs.h linux/include/linux/qnx4_fs.h
@@ -0,0 +1,123 @@
+/*
+ *  Name                         : qnx4_fs.h
+ *  Author                       : Richard Frowijn
+ *  Function                     : qnx4 global filesystem definitions
+ *  Version                      : 1.0
+ *  Last modified                : 23-03-1998
+ *
+ *  History                      : 23-03-1998 created
+ */
+#ifndef _LINUX_QNX4_FS_H
+#define _LINUX_QNX4_FS_H
+
+#include <linux/qnxtypes.h>
+
+#define QNX4_ROOT_INO 1
+
+#define _MAX_XTNTS_PER_XBLK	60
+/* for di_status */
+#define QNX4_FILE_USED          0x01
+#define QNX4_FILE_MODIFIED      0x02
+#define QNX4_FILE_BUSY          0x04
+#define QNX4_FILE_LINK          0x08
+#define QNX4_FILE_INODE         0x10
+#define QNX4_FILE_FSYSCLEAN     0x20
+
+#define QNX4_I_MAP_SLOTS	8
+#define QNX4_Z_MAP_SLOTS	64
+#define QNX4_SUPER_MAGIC	0x002f	/* qnx4 fs detection */
+#define QNX4_VALID_FS		0x0001	/* Clean fs. */
+#define QNX4_ERROR_FS		0x0002	/* fs has errors. */
+#define QNX4_BLOCK_SIZE         0x200	/* blocksize of 512 bytes */
+#define QNX4_DIR_ENTRY_SIZE     0x040	/* dir entry size */
+#define QNX4_XBLK_ENTRY_SIZE    0x200	/* xblk entry size */
+#define QNX4_INODES_PER_BLOCK   0x08	/* 512 / 64 */
+
+/* for filenames */
+#define _SHORT_NAME_MAX        16
+#define QNX4_NAME_MAX          48
+
+/*
+ * This is the original qnx4 inode layout on disk.
+ */
+struct qnx4_inode_entry {
+	char di_fname[16];
+	off_t di_size;
+	_xtnt_t di_first_xtnt;
+	long di_xblk;
+	time_t di_ftime;
+	time_t di_mtime;
+	time_t di_atime;
+	time_t di_ctime;
+	_nxtnt_t di_num_xtnts;
+	mode_t di_mode;
+	muid_t di_uid;
+	mgid_t di_gid;
+	nlink_t di_nlink;
+	char di_zero[4];
+	_ftype_t di_type;
+	unsigned char di_status;
+};
+
+struct qnx4_link_info {
+	char dl_fname[QNX4_NAME_MAX];
+	long dl_inode_blk;
+	unsigned char dl_inode_ndx;
+	unsigned char dl_spare[10];
+	unsigned char dl_status;
+};
+
+struct qnx4_xblk {
+	long xblk_next_xblk;
+	long xblk_prev_xblk;
+	unsigned char xblk_num_xtnts;
+	char xblk_spare[3];
+	long xblk_num_blocks;
+	_xtnt_t xblk_xnts[_MAX_XTNTS_PER_XBLK];
+	char xblk_signature[8];
+	_xtnt_t xblk_first_xtnt;
+};
+
+struct qnx4_super_block {
+	struct qnx4_inode_entry RootDir;
+	struct qnx4_inode_entry Inode;
+	struct qnx4_inode_entry Boot;
+	struct qnx4_inode_entry AltBoot;
+};
+
+#ifdef __KERNEL__
+
+#define QNX4_DEBUG 0
+
+#if QNX4_DEBUG
+#define QNX4DEBUG(X) printk X
+#else
+#define QNX4DEBUG(X) (void) 0
+#endif
+
+extern int qnx4_lookup(struct inode *dir, struct dentry *dentry);
+extern unsigned long qnx4_count_free_inodes(struct super_block *sb);
+extern unsigned long qnx4_count_free_blocks(struct super_block *sb);
+
+extern struct buffer_head *qnx4_getblk(struct inode *, int, int);
+extern struct buffer_head *qnx4_bread(struct inode *, int, int);
+
+extern int init_qnx4_fs(void);
+extern int qnx4_create(struct inode *dir, struct dentry *dentry, int mode);
+extern struct inode_operations qnx4_file_inode_operations;
+extern struct inode_operations qnx4_dir_inode_operations;
+extern struct inode_operations qnx4_symlink_inode_operations;
+extern int qnx4_is_free(struct super_block *sb, int block);
+extern int qnx4_set_bitmap(struct super_block *sb, int block, int busy);
+extern int qnx4_create(struct inode *inode, struct dentry *dentry, int mode);
+extern void qnx4_truncate(struct inode *inode);
+extern void qnx4_free_inode(struct inode *inode);
+extern int qnx4_unlink(struct inode *dir, struct dentry *dentry);
+extern int qnx4_rmdir(struct inode *dir, struct dentry *dentry);
+extern int qnx4_sync_file(struct file *file, struct dentry *dentry);
+extern int qnx4_sync_inode(struct inode *inode);
+extern int qnx4_bmap(struct inode *inode, int block);
+
+#endif				/* __KERNEL__ */
+
+#endif