diff options
Diffstat (limited to 'fs/minix/minix.h')
| -rw-r--r-- | fs/minix/minix.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/fs/minix/minix.h b/fs/minix/minix.h new file mode 100644 index 000000000000..e42a8bb89001 --- /dev/null +++ b/fs/minix/minix.h @@ -0,0 +1,96 @@ +#include <linux/fs.h> +#include <linux/pagemap.h> +#include <linux/minix_fs.h> + +/* + * change the define below to 0 if you want names > info->s_namelen chars to be + * truncated. Else they will be disallowed (ENAMETOOLONG). + */ +#define NO_TRUNCATE 1 + +#define INODE_VERSION(inode) minix_sb(inode->i_sb)->s_version + +#define MINIX_V1 0x0001 /* original minix fs */ +#define MINIX_V2 0x0002 /* minix V2 fs */ + +/* + * minix fs inode data in memory + */ +struct minix_inode_info { + union { + __u16 i1_data[16]; + __u32 i2_data[16]; + } u; + struct inode vfs_inode; +}; + +/* + * minix super-block data in memory + */ +struct minix_sb_info { + unsigned long s_ninodes; + unsigned long s_nzones; + unsigned long s_imap_blocks; + unsigned long s_zmap_blocks; + unsigned long s_firstdatazone; + unsigned long s_log_zone_size; + unsigned long s_max_size; + int s_dirsize; + int s_namelen; + int s_link_max; + struct buffer_head ** s_imap; + struct buffer_head ** s_zmap; + struct buffer_head * s_sbh; + struct minix_super_block * s_ms; + unsigned short s_mount_state; + unsigned short s_version; +}; + +extern struct minix_inode * minix_V1_raw_inode(struct super_block *, ino_t, struct buffer_head **); +extern struct minix2_inode * minix_V2_raw_inode(struct super_block *, ino_t, struct buffer_head **); +extern struct inode * minix_new_inode(const struct inode * dir, int * error); +extern void minix_free_inode(struct inode * inode); +extern unsigned long minix_count_free_inodes(struct minix_sb_info *sbi); +extern int minix_new_block(struct inode * inode); +extern void minix_free_block(struct inode * inode, int block); +extern unsigned long minix_count_free_blocks(struct minix_sb_info *sbi); + +extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *); + +extern void V2_minix_truncate(struct inode *); +extern void V1_minix_truncate(struct inode *); +extern void V2_minix_truncate(struct inode *); +extern void minix_truncate(struct inode *); +extern int minix_sync_inode(struct inode *); +extern void minix_set_inode(struct inode *, dev_t); +extern int V1_minix_get_block(struct inode *, long, struct buffer_head *, int); +extern int V2_minix_get_block(struct inode *, long, struct buffer_head *, int); +extern unsigned V1_minix_blocks(loff_t); +extern unsigned V2_minix_blocks(loff_t); + +extern struct minix_dir_entry *minix_find_entry(struct dentry*, struct page**); +extern int minix_add_link(struct dentry*, struct inode*); +extern int minix_delete_entry(struct minix_dir_entry*, struct page*); +extern int minix_make_empty(struct inode*, struct inode*); +extern int minix_empty_dir(struct inode*); +extern void minix_set_link(struct minix_dir_entry*, struct page*, struct inode*); +extern struct minix_dir_entry *minix_dotdot(struct inode*, struct page**); +extern ino_t minix_inode_by_name(struct dentry*); + +extern int minix_sync_file(struct file *, struct dentry *, int); + +extern struct inode_operations minix_file_inode_operations; +extern struct inode_operations minix_dir_inode_operations; +extern struct file_operations minix_file_operations; +extern struct file_operations minix_dir_operations; +extern struct dentry_operations minix_dentry_operations; + +static inline struct minix_sb_info *minix_sb(struct super_block *sb) +{ + return sb->s_fs_info; +} + +static inline struct minix_inode_info *minix_i(struct inode *inode) +{ + return list_entry(inode, struct minix_inode_info, vfs_inode); +} |