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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -07002#ifndef _UFS_UFS_H
3#define _UFS_UFS_H 1
4
Fabian Frederickde771bd2014-08-08 14:20:59 -07005#ifdef pr_fmt
6#undef pr_fmt
7#endif
8
9#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
10
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070011#define UFS_MAX_GROUP_LOADED 8
12#define UFS_CGNO_EMPTY ((unsigned)-1)
13
14struct ufs_sb_private_info;
15struct ufs_cg_private_info;
16struct ufs_csum;
17
18struct 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 Bityutskiy9e9ad5f2012-07-12 16:28:08 +030028 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 Frederickcdd9eef2015-06-10 10:09:32 +100032 struct mutex s_lock;
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070033};
34
35struct ufs_inode_info {
36 union {
37 __fs32 i_data[15];
Duane Griffinf33219b2009-01-08 22:43:49 +000038 __u8 i_symlink[2 * 4 * 15];
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070039 __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 Viro724bb092015-06-17 12:02:56 -040048 seqlock_t meta_lock;
49 struct mutex truncate_mutex;
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070050 __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 Frederickd4beaab2014-08-08 14:21:05 -070082 pr_debug("UFSD (%s, %d): %s:", \
Harvey Harrison9746077a72008-04-28 02:16:17 -070083 __FILE__, __LINE__, __func__); \
Fabian Frederickd4beaab2014-08-08 14:21:05 -070084 pr_debug(f, ## a); \
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070085 }
86#else
87# define UFSD(f, a...) /**/
88#endif
89
90/* balloc.c */
91extern void ufs_free_fragments (struct inode *, u64, unsigned);
92extern void ufs_free_blocks (struct inode *, u64, unsigned);
93extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
94 unsigned, int *, struct page *);
95
96/* cylinder.c */
97extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
98extern void ufs_put_cylinder (struct super_block *, unsigned);
99
100/* dir.c */
101extern const struct inode_operations ufs_dir_inode_operations;
Matthew Wilcox (Oracle)e95d2752024-07-08 15:11:00 -0400102
103int ufs_add_link(struct dentry *, struct inode *);
104ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
105int ufs_make_empty(struct inode *, struct inode *);
106struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *,
107 struct folio **);
Matthew Wilcox (Oracle)767bd0a2024-07-08 15:32:53 -0400108int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct folio *);
Matthew Wilcox (Oracle)e95d2752024-07-08 15:11:00 -0400109int ufs_empty_dir(struct inode *);
Matthew Wilcox (Oracle)597697c2024-07-08 15:23:35 -0400110struct ufs_dir_entry *ufs_dotdot(struct inode *, struct folio **);
Matthew Wilcox (Oracle)e95d2752024-07-08 15:11:00 -0400111void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
Matthew Wilcox (Oracle)597697c2024-07-08 15:23:35 -0400112 struct folio *folio, struct inode *inode, bool update_times);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700113
114/* file.c */
115extern const struct inode_operations ufs_file_inode_operations;
116extern const struct file_operations ufs_file_operations;
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700117extern const struct address_space_operations ufs_aops;
118
119/* ialloc.c */
120extern void ufs_free_inode (struct inode *inode);
Al Viro6a9a06d2011-07-26 02:49:13 -0400121extern struct inode * ufs_new_inode (struct inode *, umode_t);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700122
123/* inode.c */
David Howellsb55c4602008-02-07 00:15:48 -0800124extern struct inode *ufs_iget(struct super_block *, unsigned long);
Christoph Hellwiga9185b42010-03-05 09:21:37 +0100125extern int ufs_write_inode (struct inode *, struct writeback_control *);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700126extern int ufs_sync_inode (struct inode *);
Al Viro58e82682010-06-05 19:40:56 -0400127extern void ufs_evict_inode (struct inode *);
Christian Braunerc1632a02023-01-13 12:49:11 +0100128extern int ufs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
Christian Brauner549c7292021-01-21 14:19:43 +0100129 struct iattr *attr);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700130
131/* namei.c */
132extern const struct file_operations ufs_dir_operations;
133
134/* super.c */
Joe Perchesb9075fa2011-10-31 17:11:33 -0700135extern __printf(3, 4)
136void ufs_warning(struct super_block *, const char *, const char *, ...);
137extern __printf(3, 4)
138void ufs_error(struct super_block *, const char *, const char *, ...);
139extern __printf(3, 4)
140void ufs_panic(struct super_block *, const char *, const char *, ...);
Artem Bityutskiy9e9ad5f2012-07-12 16:28:08 +0300141void ufs_mark_sb_dirty(struct super_block *sb);
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700142
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700143static 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
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -0700169#endif /* _UFS_UFS_H */