1#ifndef _UFS_UFS_H 2#define _UFS_UFS_H 1 3 4#ifdef pr_fmt 5#undef pr_fmt 6#endif 7 8#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 9 10#define UFS_MAX_GROUP_LOADED 8 11#define UFS_CGNO_EMPTY ((unsigned)-1) 12 13struct ufs_sb_private_info; 14struct ufs_cg_private_info; 15struct ufs_csum; 16 17struct ufs_sb_info { 18 struct ufs_sb_private_info * s_uspi; 19 struct ufs_csum * s_csp; 20 unsigned s_bytesex; 21 unsigned s_flags; 22 struct buffer_head ** s_ucg; 23 struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED]; 24 unsigned s_cgno[UFS_MAX_GROUP_LOADED]; 25 unsigned short s_cg_loaded; 26 unsigned s_mount_opt; 27 struct super_block *sb; 28 int work_queued; /* non-zero if the delayed work is queued */ 29 struct delayed_work sync_work; /* FS sync delayed work */ 30 spinlock_t work_lock; /* protects sync_work and work_queued */ 31 struct mutex s_lock; 32}; 33 34struct ufs_inode_info { 35 union { 36 __fs32 i_data[15]; 37 __u8 i_symlink[2 * 4 * 15]; 38 __fs64 u2_i_data[15]; 39 } i_u1; 40 __u32 i_flags; 41 __u32 i_shadow; 42 __u32 i_unused1; 43 __u32 i_unused2; 44 __u32 i_oeftflag; 45 __u16 i_osync; 46 __u64 i_lastfrag; 47 seqlock_t meta_lock; 48 struct mutex truncate_mutex; 49 __u32 i_dir_start_lookup; 50 struct inode vfs_inode; 51}; 52 53/* mount options */ 54#define UFS_MOUNT_ONERROR 0x0000000F 55#define UFS_MOUNT_ONERROR_PANIC 0x00000001 56#define UFS_MOUNT_ONERROR_LOCK 0x00000002 57#define UFS_MOUNT_ONERROR_UMOUNT 0x00000004 58#define UFS_MOUNT_ONERROR_REPAIR 0x00000008 59 60#define UFS_MOUNT_UFSTYPE 0x0000FFF0 61#define UFS_MOUNT_UFSTYPE_OLD 0x00000010 62#define UFS_MOUNT_UFSTYPE_44BSD 0x00000020 63#define UFS_MOUNT_UFSTYPE_SUN 0x00000040 64#define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080 65#define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100 66#define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200 67#define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400 68#define UFS_MOUNT_UFSTYPE_HP 0x00000800 69#define UFS_MOUNT_UFSTYPE_UFS2 0x00001000 70#define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000 71 72#define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt 73#define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt 74#define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt) 75 76/* 77 * Debug code 78 */ 79#ifdef CONFIG_UFS_DEBUG 80# define UFSD(f, a...) { \ 81 pr_debug("UFSD (%s, %d): %s:", \ 82 __FILE__, __LINE__, __func__); \ 83 pr_debug(f, ## a); \ 84 } 85#else 86# define UFSD(f, a...) /**/ 87#endif 88 89/* balloc.c */ 90extern void ufs_free_fragments (struct inode *, u64, unsigned); 91extern void ufs_free_blocks (struct inode *, u64, unsigned); 92extern u64 ufs_new_fragments(struct inode *, void *, u64, u64, 93 unsigned, int *, struct page *); 94 95/* cylinder.c */ 96extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); 97extern void ufs_put_cylinder (struct super_block *, unsigned); 98 99/* dir.c */ 100extern const struct inode_operations ufs_dir_inode_operations; 101extern int ufs_add_link (struct dentry *, struct inode *); 102extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *); 103extern int ufs_make_empty(struct inode *, struct inode *); 104extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **); 105extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *); 106extern int ufs_empty_dir (struct inode *); 107extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **); 108extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, 109 struct page *page, struct inode *inode, bool update_times); 110 111/* file.c */ 112extern const struct inode_operations ufs_file_inode_operations; 113extern const struct file_operations ufs_file_operations; 114extern const struct address_space_operations ufs_aops; 115 116/* ialloc.c */ 117extern void ufs_free_inode (struct inode *inode); 118extern struct inode * ufs_new_inode (struct inode *, umode_t); 119 120/* inode.c */ 121extern struct inode *ufs_iget(struct super_block *, unsigned long); 122extern int ufs_write_inode (struct inode *, struct writeback_control *); 123extern int ufs_sync_inode (struct inode *); 124extern void ufs_evict_inode (struct inode *); 125extern int ufs_setattr(struct dentry *dentry, struct iattr *attr); 126 127/* namei.c */ 128extern const struct file_operations ufs_dir_operations; 129 130/* super.c */ 131extern __printf(3, 4) 132void ufs_warning(struct super_block *, const char *, const char *, ...); 133extern __printf(3, 4) 134void ufs_error(struct super_block *, const char *, const char *, ...); 135extern __printf(3, 4) 136void ufs_panic(struct super_block *, const char *, const char *, ...); 137void ufs_mark_sb_dirty(struct super_block *sb); 138 139/* symlink.c */ 140extern const struct inode_operations ufs_fast_symlink_inode_operations; 141extern const struct inode_operations ufs_symlink_inode_operations; 142 143static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) 144{ 145 return sb->s_fs_info; 146} 147 148static inline struct ufs_inode_info *UFS_I(struct inode *inode) 149{ 150 return container_of(inode, struct ufs_inode_info, vfs_inode); 151} 152 153/* 154 * Give cylinder group number for a file system block. 155 * Give cylinder group block number for a file system block. 156 */ 157/* #define ufs_dtog(d) ((d) / uspi->s_fpg) */ 158static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b) 159{ 160 do_div(b, uspi->s_fpg); 161 return b; 162} 163/* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */ 164static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b) 165{ 166 return do_div(b, uspi->s_fpg); 167} 168 169#endif /* _UFS_UFS_H */ 170