1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _UFS_UFS_H 3 #define _UFS_UFS_H 1 4 5 #ifdef pr_fmt 6 #undef pr_fmt 7 #endif 8 9 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 10 11 #define UFS_MAX_GROUP_LOADED 8 12 #define UFS_CGNO_EMPTY ((unsigned)-1) 13 14 struct ufs_sb_private_info; 15 struct ufs_cg_private_info; 16 struct ufs_csum; 17 18 struct ufs_sb_info { 19 struct ufs_sb_private_info * s_uspi; 20 struct ufs_csum * s_csp; 21 unsigned s_bytesex; 22 unsigned s_flags; 23 struct buffer_head ** s_ucg; 24 struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED]; 25 unsigned s_cgno[UFS_MAX_GROUP_LOADED]; 26 unsigned short s_cg_loaded; 27 unsigned s_flavour; 28 unsigned s_on_err; 29 struct super_block *sb; 30 int work_queued; /* non-zero if the delayed work is queued */ 31 struct delayed_work sync_work; /* FS sync delayed work */ 32 spinlock_t work_lock; /* protects sync_work and work_queued */ 33 struct mutex s_lock; 34 }; 35 36 struct ufs_inode_info { 37 union { 38 __fs32 i_data[15]; 39 __u8 i_symlink[2 * 4 * 15]; 40 __fs64 u2_i_data[15]; 41 } i_u1; 42 __u32 i_flags; 43 __u32 i_shadow; 44 __u32 i_unused1; 45 __u32 i_unused2; 46 __u32 i_oeftflag; 47 __u16 i_osync; 48 __u64 i_lastfrag; 49 seqlock_t meta_lock; 50 struct mutex truncate_mutex; 51 __u32 i_dir_start_lookup; 52 struct inode vfs_inode; 53 }; 54 55 /* mount options */ 56 #define UFS_MOUNT_ONERROR_PANIC 0x00000001 57 #define UFS_MOUNT_ONERROR_LOCK 0x00000002 58 #define UFS_MOUNT_ONERROR_UMOUNT 0x00000004 59 #define UFS_MOUNT_ONERROR_REPAIR 0x00000008 60 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 /* 73 * Debug code 74 */ 75 #ifdef CONFIG_UFS_DEBUG 76 # define UFSD(f, a...) { \ 77 pr_debug("UFSD (%s, %d): %s:", \ 78 __FILE__, __LINE__, __func__); \ 79 pr_debug(f, ## a); \ 80 } 81 #else 82 # define UFSD(f, a...) /**/ 83 #endif 84 85 /* balloc.c */ 86 void ufs_free_fragments (struct inode *, u64 fragment, unsigned count); 87 void ufs_free_blocks (struct inode *, u64 fragment, unsigned count); 88 u64 ufs_new_fragments(struct inode *, void *, u64 fragment, u64 goal, 89 unsigned count, int *err, struct folio *); 90 91 /* cylinder.c */ 92 extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned); 93 extern void ufs_put_cylinder (struct super_block *, unsigned); 94 95 /* dir.c */ 96 extern const struct inode_operations ufs_dir_inode_operations; 97 98 int ufs_add_link(struct dentry *, struct inode *); 99 ino_t ufs_inode_by_name(struct inode *, const struct qstr *); 100 int ufs_make_empty(struct inode *, struct inode *); 101 struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, 102 struct folio **); 103 int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct folio *); 104 int ufs_empty_dir(struct inode *); 105 struct ufs_dir_entry *ufs_dotdot(struct inode *, struct folio **); 106 int ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, 107 struct folio *folio, struct inode *inode, bool update_times); 108 109 /* file.c */ 110 extern const struct inode_operations ufs_file_inode_operations; 111 extern const struct file_operations ufs_file_operations; 112 extern const struct address_space_operations ufs_aops; 113 114 /* ialloc.c */ 115 extern void ufs_free_inode (struct inode *inode); 116 extern struct inode * ufs_new_inode (struct inode *, umode_t); 117 118 /* inode.c */ 119 extern struct inode *ufs_iget(struct super_block *, unsigned long); 120 extern int ufs_write_inode (struct inode *, struct writeback_control *); 121 extern int ufs_sync_inode (struct inode *); 122 extern void ufs_evict_inode (struct inode *); 123 extern int ufs_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 124 struct iattr *attr); 125 126 /* namei.c */ 127 extern const struct file_operations ufs_dir_operations; 128 129 /* super.c */ 130 extern __printf(3, 4) 131 void ufs_warning(struct super_block *, const char *, const char *, ...); 132 extern __printf(3, 4) 133 void ufs_error(struct super_block *, const char *, const char *, ...); 134 extern __printf(3, 4) 135 void ufs_panic(struct super_block *, const char *, const char *, ...); 136 void ufs_mark_sb_dirty(struct super_block *sb); 137 138 static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) 139 { 140 return sb->s_fs_info; 141 } 142 143 static inline struct ufs_inode_info *UFS_I(struct inode *inode) 144 { 145 return container_of(inode, struct ufs_inode_info, vfs_inode); 146 } 147 148 /* 149 * Give cylinder group number for a file system block. 150 * Give cylinder group block number for a file system block. 151 */ 152 /* #define ufs_dtog(d) ((d) / uspi->s_fpg) */ 153 static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b) 154 { 155 do_div(b, uspi->s_fpg); 156 return b; 157 } 158 /* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */ 159 static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b) 160 { 161 return do_div(b, uspi->s_fpg); 162 } 163 164 #endif /* _UFS_UFS_H */ 165