diff options
| -rw-r--r-- | fs/efs/dir.c | 2 | ||||
| -rw-r--r-- | fs/efs/efs.h | 140 | ||||
| -rw-r--r-- | fs/efs/file.c | 2 | ||||
| -rw-r--r-- | fs/efs/inode.c | 4 | ||||
| -rw-r--r-- | fs/efs/namei.c | 2 | ||||
| -rw-r--r-- | fs/efs/super.c | 7 | ||||
| -rw-r--r-- | fs/efs/symlink.c | 2 | ||||
| -rw-r--r-- | include/linux/efs_dir.h | 42 | ||||
| -rw-r--r-- | include/linux/efs_fs.h | 56 | ||||
| -rw-r--r-- | include/linux/efs_fs_i.h | 68 |
10 files changed, 150 insertions, 175 deletions
diff --git a/fs/efs/dir.c b/fs/efs/dir.c index dfb5cb4..49308a2 100644 --- a/fs/efs/dir.c +++ b/fs/efs/dir.c @@ -5,8 +5,8 @@ */ #include <linux/buffer_head.h> -#include <linux/efs_fs.h> #include <linux/smp_lock.h> +#include "efs.h" static int efs_readdir(struct file *, void *, filldir_t); diff --git a/fs/efs/efs.h b/fs/efs/efs.h new file mode 100644 index 0000000..d8305b5 --- /dev/null +++ b/fs/efs/efs.h @@ -0,0 +1,140 @@ +/* + * Copyright (c) 1999 Al Smith + * + * Portions derived from work (c) 1995,1996 Christian Vogelgsang. + * Portions derived from IRIX header files (c) 1988 Silicon Graphics + */ +#ifndef _EFS_EFS_H_ +#define _EFS_EFS_H_ + +#include <linux/fs.h> +#include <asm/uaccess.h> + +#define EFS_VERSION "1.0a" + +static const char cprt[] = "EFS: "EFS_VERSION" - (c) 1999 Al Smith <Al.Smith@aeschi.ch.eu.org>"; + + +/* 1 block is 512 bytes */ +#define EFS_BLOCKSIZE_BITS 9 +#define EFS_BLOCKSIZE (1 << EFS_BLOCKSIZE_BITS) + +typedef int32_t efs_block_t; +typedef uint32_t efs_ino_t; + +#define EFS_DIRECTEXTENTS 12 + +/* + * layout of an extent, in memory and on disk. 8 bytes exactly. + */ +typedef union extent_u { + unsigned char raw[8]; + struct extent_s { + unsigned int ex_magic:8; /* magic # (zero) */ + unsigned int ex_bn:24; /* basic block */ + unsigned int ex_length:8; /* numblocks in this extent */ + unsigned int ex_offset:24; /* logical offset into file */ + } cooked; +} efs_extent; + +typedef struct edevs { + __be16 odev; + __be32 ndev; +} efs_devs; + +/* + * extent based filesystem inode as it appears on disk. The efs inode + * is exactly 128 bytes long. + */ +struct efs_dinode { + __be16 di_mode; /* mode and type of file */ + __be16 di_nlink; /* number of links to file */ + __be16 di_uid; /* owner's user id */ + __be16 di_gid; /* owner's group id */ + __be32 di_size; /* number of bytes in file */ + __be32 di_atime; /* time last accessed */ + __be32 di_mtime; /* time last modified */ + __be32 di_ctime; /* time created */ + __be32 di_gen; /* generation number */ + __be16 di_numextents; /* # of extents */ + u_char di_version; /* version of inode */ + u_char di_spare; /* spare - used by AFS */ + union di_addr { + efs_extent di_extents[EFS_DIRECTEXTENTS]; + efs_devs di_dev; /* device for IFCHR/IFBLK */ + } di_u; +}; + +/* efs inode storage in memory */ +struct efs_inode_info { + int numextents; + int lastextent; + + efs_extent extents[EFS_DIRECTEXTENTS]; + struct inode vfs_inode; +}; + +#include <linux/efs_fs_sb.h> + +#define EFS_DIRBSIZE_BITS EFS_BLOCKSIZE_BITS +#define EFS_DIRBSIZE (1 << EFS_DIRBSIZE_BITS) + +struct efs_dentry { + __be32 inode; + unsigned char namelen; + char name[3]; +}; + +#define EFS_DENTSIZE (sizeof(struct efs_dentry) - 3 + 1) +#define EFS_MAXNAMELEN ((1 << (sizeof(char) * 8)) - 1) + +#define EFS_DIRBLK_HEADERSIZE 4 +#define EFS_DIRBLK_MAGIC 0xbeef /* moo */ + +struct efs_dir { + __be16 magic; + unsigned char firstused; + unsigned char slots; + + unsigned char space[EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE]; +}; + +#define EFS_MAXENTS \ + ((EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE) / \ + (EFS_DENTSIZE + sizeof(char))) + +#define EFS_SLOTAT(dir, slot) EFS_REALOFF((dir)->space[slot]) + +#define EFS_REALOFF(offset) ((offset << 1)) + + +static inline struct efs_inode_info *INODE_INFO(struct inode *inode) +{ + return container_of(inode, struct efs_inode_info, vfs_inode); +} + +static inline struct efs_sb_info *SUPER_INFO(struct super_block *sb) +{ + return sb->s_fs_info; +} + +struct statfs; +struct fid; + +extern const struct inode_operations efs_dir_inode_operations; +extern const struct file_operations efs_dir_operations; +extern const struct address_space_operations efs_symlink_aops; + +extern struct inode *efs_iget(struct super_block *, unsigned long); +extern efs_block_t efs_map_block(struct inode *, efs_block_t); +extern int efs_get_block(struct inode *, sector_t, struct buffer_head *, int); + +extern struct dentry *efs_lookup(struct inode *, struct dentry *, struct nameidata *); +extern struct dentry *efs_fh_to_dentry(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type); +extern struct dentry *efs_fh_to_parent(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type); +extern struct dentry *efs_get_parent(struct dentry *); +extern int efs_bmap(struct inode *, int); + +#endif /* _EFS_EFS_H_ */ diff --git a/fs/efs/file.c b/fs/efs/file.c index 5db2012..1ccb364 100644 --- a/fs/efs/file.c +++ b/fs/efs/file.c @@ -7,7 +7,7 @@ */ #include <linux/buffer_head.h> -#include <linux/efs_fs.h> +#include "efs.h" int efs_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) diff --git a/fs/efs/inode.c b/fs/efs/inode.c index 627c302..79e19e5 100644 --- a/fs/efs/inode.c +++ b/fs/efs/inode.c @@ -7,11 +7,11 @@ * and from work (c) 1998 Mike Shaver. */ -#include <linux/efs_fs.h> -#include <linux/efs_fs_sb.h> #include <linux/buffer_head.h> #include <linux/module.h> #include <linux/fs.h> +#include "efs.h" +#include <linux/efs_fs_sb.h> static int efs_readpage(struct file *file, struct page *page) { diff --git a/fs/efs/namei.c b/fs/efs/namei.c index e267047..3a404e7 100644 --- a/fs/efs/namei.c +++ b/fs/efs/namei.c @@ -8,9 +8,9 @@ #include <linux/buffer_head.h> #include <linux/string.h> -#include <linux/efs_fs.h> #include <linux/smp_lock.h> #include <linux/exportfs.h> +#include "efs.h" static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len) { diff --git a/fs/efs/super.c b/fs/efs/super.c index 1408240..d733531 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -8,14 +8,15 @@ #include <linux/init.h> #include <linux/module.h> -#include <linux/efs_fs.h> -#include <linux/efs_vh.h> -#include <linux/efs_fs_sb.h> #include <linux/exportfs.h> #include <linux/slab.h> #include <linux/buffer_head.h> #include <linux/vfs.h> +#include "efs.h" +#include <linux/efs_vh.h> +#include <linux/efs_fs_sb.h> + static int efs_statfs(struct dentry *dentry, struct kstatfs *buf); static int efs_fill_super(struct super_block *s, void *d, int silent); diff --git a/fs/efs/symlink.c b/fs/efs/symlink.c index 1d30d2f..41911ec 100644 --- a/fs/efs/symlink.c +++ b/fs/efs/symlink.c @@ -7,10 +7,10 @@ */ #include <linux/string.h> -#include <linux/efs_fs.h> #include <linux/pagemap.h> #include <linux/buffer_head.h> #include <linux/smp_lock.h> +#include "efs.h" static int efs_symlink_readpage(struct file *file, struct page *page) { diff --git a/include/linux/efs_dir.h b/include/linux/efs_dir.h deleted file mode 100644 index a09ec01..0000000 --- a/include/linux/efs_dir.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * efs_dir.h - * - * Copyright (c) 1999 Al Smith - */ - -#ifndef __EFS_DIR_H__ -#define __EFS_DIR_H__ - -#define EFS_DIRBSIZE_BITS EFS_BLOCKSIZE_BITS -#define EFS_DIRBSIZE (1 << EFS_DIRBSIZE_BITS) - -struct efs_dentry { - __be32 inode; - unsigned char namelen; - char name[3]; -}; - -#define EFS_DENTSIZE (sizeof(struct efs_dentry) - 3 + 1) -#define EFS_MAXNAMELEN ((1 << (sizeof(char) * 8)) - 1) - -#define EFS_DIRBLK_HEADERSIZE 4 -#define EFS_DIRBLK_MAGIC 0xbeef /* moo */ - -struct efs_dir { - __be16 magic; - unsigned char firstused; - unsigned char slots; - - unsigned char space[EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE]; -}; - -#define EFS_MAXENTS \ - ((EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE) / \ - (EFS_DENTSIZE + sizeof(char))) - -#define EFS_SLOTAT(dir, slot) EFS_REALOFF((dir)->space[slot]) - -#define EFS_REALOFF(offset) ((offset << 1)) - -#endif /* __EFS_DIR_H__ */ - diff --git a/include/linux/efs_fs.h b/include/linux/efs_fs.h deleted file mode 100644 index a695d63..0000000 --- a/include/linux/efs_fs.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * efs_fs.h - * - * Copyright (c) 1999 Al Smith - * - * Portions derived from work (c) 1995,1996 Christian Vogelgsang. - */ - -#ifndef __EFS_FS_H__ -#define __EFS_FS_H__ - -#define EFS_VERSION "1.0a" - -static const char cprt[] = "EFS: "EFS_VERSION" - (c) 1999 Al Smith <Al.Smith@aeschi.ch.eu.org>"; - -#include <asm/uaccess.h> - -/* 1 block is 512 bytes */ -#define EFS_BLOCKSIZE_BITS 9 -#define EFS_BLOCKSIZE (1 << EFS_BLOCKSIZE_BITS) - -#include <linux/fs.h> -#include <linux/efs_fs_i.h> -#include <linux/efs_fs_sb.h> -#include <linux/efs_dir.h> - -static inline struct efs_inode_info *INODE_INFO(struct inode *inode) -{ - return container_of(inode, struct efs_inode_info, vfs_inode); -} - -static inline struct efs_sb_info *SUPER_INFO(struct super_block *sb) -{ - return sb->s_fs_info; -} - -struct statfs; -struct fid; - -extern const struct inode_operations efs_dir_inode_operations; -extern const struct file_operations efs_dir_operations; -extern const struct address_space_operations efs_symlink_aops; - -extern struct inode *efs_iget(struct super_block *, unsigned long); -extern efs_block_t efs_map_block(struct inode *, efs_block_t); -extern int efs_get_block(struct inode *, sector_t, struct buffer_head *, int); - -extern struct dentry *efs_lookup(struct inode *, struct dentry *, struct nameidata *); -extern struct dentry *efs_fh_to_dentry(struct super_block *sb, struct fid *fid, - int fh_len, int fh_type); -extern struct dentry *efs_fh_to_parent(struct super_block *sb, struct fid *fid, - int fh_len, int fh_type); -extern struct dentry *efs_get_parent(struct dentry *); -extern int efs_bmap(struct inode *, int); - -#endif /* __EFS_FS_H__ */ diff --git a/include/linux/efs_fs_i.h b/include/linux/efs_fs_i.h deleted file mode 100644 index 617c474..0000000 --- a/include/linux/efs_fs_i.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * efs_fs_i.h - * - * Copyright (c) 1999 Al Smith - * - * Portions derived from IRIX header files (c) 1988 Silicon Graphics - */ - -#ifndef __EFS_FS_I_H__ -#define __EFS_FS_I_H__ - -typedef int32_t efs_block_t; -typedef uint32_t efs_ino_t; - -#define EFS_DIRECTEXTENTS 12 - -/* - * layout of an extent, in memory and on disk. 8 bytes exactly. - */ -typedef union extent_u { - unsigned char raw[8]; - struct extent_s { - unsigned int ex_magic:8; /* magic # (zero) */ - unsigned int ex_bn:24; /* basic block */ - unsigned int ex_length:8; /* numblocks in this extent */ - unsigned int ex_offset:24; /* logical offset into file */ - } cooked; -} efs_extent; - -typedef struct edevs { - __be16 odev; - __be32 ndev; -} efs_devs; - -/* - * extent based filesystem inode as it appears on disk. The efs inode - * is exactly 128 bytes long. - */ -struct efs_dinode { - __be16 di_mode; /* mode and type of file */ - __be16 di_nlink; /* number of links to file */ - __be16 di_uid; /* owner's user id */ - __be16 di_gid; /* owner's group id */ - __be32 di_size; /* number of bytes in file */ - __be32 di_atime; /* time last accessed */ - __be32 di_mtime; /* time last modified */ - __be32 di_ctime; /* time created */ - __be32 di_gen; /* generation number */ - __be16 di_numextents; /* # of extents */ - u_char di_version; /* version of inode */ - u_char di_spare; /* spare - used by AFS */ - union di_addr { - efs_extent di_extents[EFS_DIRECTEXTENTS]; - efs_devs di_dev; /* device for IFCHR/IFBLK */ - } di_u; -}; - -/* efs inode storage in memory */ -struct efs_inode_info { - int numextents; - int lastextent; - - efs_extent extents[EFS_DIRECTEXTENTS]; - struct inode vfs_inode; -}; - -#endif /* __EFS_FS_I_H__ */ - |
