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