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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/qnx4_fs.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/qnx4_fs.h')
-rw-r--r--include/linux/qnx4_fs.h150
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diff --git a/include/linux/qnx4_fs.h b/include/linux/qnx4_fs.h
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+++ b/include/linux/qnx4_fs.h
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+/*
+ * Name : qnx4_fs.h
+ * Author : Richard Frowijn
+ * Function : qnx4 global filesystem definitions
+ * Version : 1.0.2
+ * Last modified : 2000-01-31
+ *
+ * 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 QNX4_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_BLOCK_SIZE_BITS 9 /* blocksize shift */
+#define QNX4_DIR_ENTRY_SIZE 0x040 /* dir entry size of 64 bytes */
+#define QNX4_DIR_ENTRY_SIZE_BITS 6 /* dir entry size shift */
+#define QNX4_XBLK_ENTRY_SIZE 0x200 /* xblk entry size */
+#define QNX4_INODES_PER_BLOCK 0x08 /* 512 / 64 */
+
+/* for filenames */
+#define QNX4_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[QNX4_SHORT_NAME_MAX];
+ qnx4_off_t di_size;
+ qnx4_xtnt_t di_first_xtnt;
+ __u32 di_xblk;
+ __s32 di_ftime;
+ __s32 di_mtime;
+ __s32 di_atime;
+ __s32 di_ctime;
+ qnx4_nxtnt_t di_num_xtnts;
+ qnx4_mode_t di_mode;
+ qnx4_muid_t di_uid;
+ qnx4_mgid_t di_gid;
+ qnx4_nlink_t di_nlink;
+ __u8 di_zero[4];
+ qnx4_ftype_t di_type;
+ __u8 di_status;
+};
+
+struct qnx4_link_info {
+ char dl_fname[QNX4_NAME_MAX];
+ __u32 dl_inode_blk;
+ __u8 dl_inode_ndx;
+ __u8 dl_spare[10];
+ __u8 dl_status;
+};
+
+struct qnx4_xblk {
+ __u32 xblk_next_xblk;
+ __u32 xblk_prev_xblk;
+ __u8 xblk_num_xtnts;
+ __u8 xblk_spare[3];
+ __s32 xblk_num_blocks;
+ qnx4_xtnt_t xblk_xtnts[QNX4_MAX_XTNTS_PER_XBLK];
+ char xblk_signature[8];
+ qnx4_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
+
+struct qnx4_sb_info {
+ struct buffer_head *sb_buf; /* superblock buffer */
+ struct qnx4_super_block *sb; /* our superblock */
+ unsigned int Version; /* may be useful */
+ struct qnx4_inode_entry *BitMap; /* useful */
+};
+
+struct qnx4_inode_info {
+ struct qnx4_inode_entry raw;
+ loff_t mmu_private;
+ struct inode vfs_inode;
+};
+
+extern struct dentry *qnx4_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd);
+extern unsigned long qnx4_count_free_blocks(struct super_block *sb);
+extern unsigned long qnx4_block_map(struct inode *inode, long iblock);
+
+extern struct buffer_head *qnx4_bread(struct inode *, int, int);
+
+extern struct inode_operations qnx4_file_inode_operations;
+extern struct inode_operations qnx4_dir_inode_operations;
+extern struct file_operations qnx4_file_operations;
+extern struct file_operations qnx4_dir_operations;
+extern int qnx4_is_free(struct super_block *sb, long block);
+extern int qnx4_set_bitmap(struct super_block *sb, long block, int busy);
+extern int qnx4_create(struct inode *inode, struct dentry *dentry, int mode, struct nameidata *nd);
+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, int);
+extern int qnx4_sync_inode(struct inode *inode);
+
+static inline struct qnx4_sb_info *qnx4_sb(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
+static inline struct qnx4_inode_info *qnx4_i(struct inode *inode)
+{
+ return container_of(inode, struct qnx4_inode_info, vfs_inode);
+}
+
+static inline struct qnx4_inode_entry *qnx4_raw_inode(struct inode *inode)
+{
+ return &qnx4_i(inode)->raw;
+}
+
+#endif /* __KERNEL__ */
+
+#endif