Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 2 | #ifndef _UFS_UFS_H |
| 3 | #define _UFS_UFS_H 1 |
| 4 | |
Fabian Frederick | de771bd | 2014-08-08 14:20:59 -0700 | [diff] [blame] | 5 | #ifdef pr_fmt |
| 6 | #undef pr_fmt |
| 7 | #endif |
| 8 | |
| 9 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 10 | |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 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; |
Artem Bityutskiy | 9e9ad5f | 2012-07-12 16:28:08 +0300 | [diff] [blame] | 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 */ |
Fabian Frederick | cdd9eef | 2015-06-10 10:09:32 +1000 | [diff] [blame] | 32 | struct mutex s_lock; |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 33 | }; |
| 34 | |
| 35 | struct ufs_inode_info { |
| 36 | union { |
| 37 | __fs32 i_data[15]; |
Duane Griffin | f33219b | 2009-01-08 22:43:49 +0000 | [diff] [blame] | 38 | __u8 i_symlink[2 * 4 * 15]; |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 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; |
Al Viro | 724bb09 | 2015-06-17 12:02:56 -0400 | [diff] [blame] | 48 | seqlock_t meta_lock; |
| 49 | struct mutex truncate_mutex; |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 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...) { \ |
Fabian Frederick | d4beaab | 2014-08-08 14:21:05 -0700 | [diff] [blame] | 82 | pr_debug("UFSD (%s, %d): %s:", \ |
Harvey Harrison | 9746077a7 | 2008-04-28 02:16:17 -0700 | [diff] [blame] | 83 | __FILE__, __LINE__, __func__); \ |
Fabian Frederick | d4beaab | 2014-08-08 14:21:05 -0700 | [diff] [blame] | 84 | pr_debug(f, ## a); \ |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 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; |
Matthew Wilcox (Oracle) | e95d275 | 2024-07-08 15:11:00 -0400 | [diff] [blame] | 102 | |
| 103 | int ufs_add_link(struct dentry *, struct inode *); |
| 104 | ino_t ufs_inode_by_name(struct inode *, const struct qstr *); |
| 105 | int ufs_make_empty(struct inode *, struct inode *); |
| 106 | struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, |
| 107 | struct folio **); |
Matthew Wilcox (Oracle) | 767bd0a | 2024-07-08 15:32:53 -0400 | [diff] [blame] | 108 | int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct folio *); |
Matthew Wilcox (Oracle) | e95d275 | 2024-07-08 15:11:00 -0400 | [diff] [blame] | 109 | int ufs_empty_dir(struct inode *); |
Matthew Wilcox (Oracle) | 597697c | 2024-07-08 15:23:35 -0400 | [diff] [blame] | 110 | struct ufs_dir_entry *ufs_dotdot(struct inode *, struct folio **); |
Matthew Wilcox (Oracle) | e95d275 | 2024-07-08 15:11:00 -0400 | [diff] [blame] | 111 | void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de, |
Matthew Wilcox (Oracle) | 597697c | 2024-07-08 15:23:35 -0400 | [diff] [blame] | 112 | struct folio *folio, struct inode *inode, bool update_times); |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 113 | |
| 114 | /* file.c */ |
| 115 | extern const struct inode_operations ufs_file_inode_operations; |
| 116 | extern const struct file_operations ufs_file_operations; |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 117 | extern const struct address_space_operations ufs_aops; |
| 118 | |
| 119 | /* ialloc.c */ |
| 120 | extern void ufs_free_inode (struct inode *inode); |
Al Viro | 6a9a06d | 2011-07-26 02:49:13 -0400 | [diff] [blame] | 121 | extern struct inode * ufs_new_inode (struct inode *, umode_t); |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 122 | |
| 123 | /* inode.c */ |
David Howells | b55c460 | 2008-02-07 00:15:48 -0800 | [diff] [blame] | 124 | extern struct inode *ufs_iget(struct super_block *, unsigned long); |
Christoph Hellwig | a9185b4 | 2010-03-05 09:21:37 +0100 | [diff] [blame] | 125 | extern int ufs_write_inode (struct inode *, struct writeback_control *); |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 126 | extern int ufs_sync_inode (struct inode *); |
Al Viro | 58e8268 | 2010-06-05 19:40:56 -0400 | [diff] [blame] | 127 | extern void ufs_evict_inode (struct inode *); |
Christian Brauner | c1632a0 | 2023-01-13 12:49:11 +0100 | [diff] [blame] | 128 | extern int ufs_setattr(struct mnt_idmap *idmap, struct dentry *dentry, |
Christian Brauner | 549c729 | 2021-01-21 14:19:43 +0100 | [diff] [blame] | 129 | struct iattr *attr); |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 130 | |
| 131 | /* namei.c */ |
| 132 | extern const struct file_operations ufs_dir_operations; |
| 133 | |
| 134 | /* super.c */ |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 135 | extern __printf(3, 4) |
| 136 | void ufs_warning(struct super_block *, const char *, const char *, ...); |
| 137 | extern __printf(3, 4) |
| 138 | void ufs_error(struct super_block *, const char *, const char *, ...); |
| 139 | extern __printf(3, 4) |
| 140 | void ufs_panic(struct super_block *, const char *, const char *, ...); |
Artem Bityutskiy | 9e9ad5f | 2012-07-12 16:28:08 +0300 | [diff] [blame] | 141 | void ufs_mark_sb_dirty(struct super_block *sb); |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 142 | |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 143 | static inline struct ufs_sb_info *UFS_SB(struct super_block *sb) |
| 144 | { |
| 145 | return sb->s_fs_info; |
| 146 | } |
| 147 | |
| 148 | static 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) */ |
| 158 | static 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) */ |
| 164 | static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b) |
| 165 | { |
| 166 | return do_div(b, uspi->s_fpg); |
| 167 | } |
| 168 | |
Christoph Hellwig | bcd6d4e | 2007-10-16 23:26:51 -0700 | [diff] [blame] | 169 | #endif /* _UFS_UFS_H */ |