167 lines
5.0 KiB
C
167 lines
5.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _UFS_UFS_H
|
|
#define _UFS_UFS_H 1
|
|
|
|
#ifdef pr_fmt
|
|
#undef pr_fmt
|
|
#endif
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#define UFS_MAX_GROUP_LOADED 8
|
|
#define UFS_CGNO_EMPTY ((unsigned)-1)
|
|
|
|
struct ufs_sb_private_info;
|
|
struct ufs_cg_private_info;
|
|
struct ufs_csum;
|
|
|
|
struct ufs_sb_info {
|
|
struct ufs_sb_private_info * s_uspi;
|
|
struct ufs_csum * s_csp;
|
|
unsigned s_bytesex;
|
|
unsigned s_flags;
|
|
struct buffer_head ** s_ucg;
|
|
struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
|
|
unsigned s_cgno[UFS_MAX_GROUP_LOADED];
|
|
unsigned short s_cg_loaded;
|
|
unsigned s_mount_opt;
|
|
struct super_block *sb;
|
|
int work_queued; /* non-zero if the delayed work is queued */
|
|
struct delayed_work sync_work; /* FS sync delayed work */
|
|
spinlock_t work_lock; /* protects sync_work and work_queued */
|
|
struct mutex s_lock;
|
|
};
|
|
|
|
struct ufs_inode_info {
|
|
union {
|
|
__fs32 i_data[15];
|
|
__u8 i_symlink[2 * 4 * 15];
|
|
__fs64 u2_i_data[15];
|
|
} i_u1;
|
|
__u32 i_flags;
|
|
__u32 i_shadow;
|
|
__u32 i_unused1;
|
|
__u32 i_unused2;
|
|
__u32 i_oeftflag;
|
|
__u16 i_osync;
|
|
__u64 i_lastfrag;
|
|
seqlock_t meta_lock;
|
|
struct mutex truncate_mutex;
|
|
__u32 i_dir_start_lookup;
|
|
struct inode vfs_inode;
|
|
};
|
|
|
|
/* mount options */
|
|
#define UFS_MOUNT_ONERROR 0x0000000F
|
|
#define UFS_MOUNT_ONERROR_PANIC 0x00000001
|
|
#define UFS_MOUNT_ONERROR_LOCK 0x00000002
|
|
#define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
|
|
#define UFS_MOUNT_ONERROR_REPAIR 0x00000008
|
|
|
|
#define UFS_MOUNT_UFSTYPE 0x0000FFF0
|
|
#define UFS_MOUNT_UFSTYPE_OLD 0x00000010
|
|
#define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
|
|
#define UFS_MOUNT_UFSTYPE_SUN 0x00000040
|
|
#define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
|
|
#define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
|
|
#define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
|
|
#define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
|
|
#define UFS_MOUNT_UFSTYPE_HP 0x00000800
|
|
#define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
|
|
#define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000
|
|
|
|
#define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
|
|
#define ufs_set_opt(o,opt) o |= UFS_MOUNT_##opt
|
|
#define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
|
|
|
|
/*
|
|
* Debug code
|
|
*/
|
|
#ifdef CONFIG_UFS_DEBUG
|
|
# define UFSD(f, a...) { \
|
|
pr_debug("UFSD (%s, %d): %s:", \
|
|
__FILE__, __LINE__, __func__); \
|
|
pr_debug(f, ## a); \
|
|
}
|
|
#else
|
|
# define UFSD(f, a...) /**/
|
|
#endif
|
|
|
|
/* balloc.c */
|
|
extern void ufs_free_fragments (struct inode *, u64, unsigned);
|
|
extern void ufs_free_blocks (struct inode *, u64, unsigned);
|
|
extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
|
|
unsigned, int *, struct page *);
|
|
|
|
/* cylinder.c */
|
|
extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
|
|
extern void ufs_put_cylinder (struct super_block *, unsigned);
|
|
|
|
/* dir.c */
|
|
extern const struct inode_operations ufs_dir_inode_operations;
|
|
extern int ufs_add_link (struct dentry *, struct inode *);
|
|
extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
|
|
extern int ufs_make_empty(struct inode *, struct inode *);
|
|
extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **);
|
|
extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
|
|
extern int ufs_empty_dir (struct inode *);
|
|
extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
|
|
extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
|
|
struct page *page, struct inode *inode, bool update_times);
|
|
|
|
/* file.c */
|
|
extern const struct inode_operations ufs_file_inode_operations;
|
|
extern const struct file_operations ufs_file_operations;
|
|
extern const struct address_space_operations ufs_aops;
|
|
|
|
/* ialloc.c */
|
|
extern void ufs_free_inode (struct inode *inode);
|
|
extern struct inode * ufs_new_inode (struct inode *, umode_t);
|
|
|
|
/* inode.c */
|
|
extern struct inode *ufs_iget(struct super_block *, unsigned long);
|
|
extern int ufs_write_inode (struct inode *, struct writeback_control *);
|
|
extern int ufs_sync_inode (struct inode *);
|
|
extern void ufs_evict_inode (struct inode *);
|
|
extern int ufs_setattr(struct dentry *dentry, struct iattr *attr);
|
|
|
|
/* namei.c */
|
|
extern const struct file_operations ufs_dir_operations;
|
|
|
|
/* super.c */
|
|
extern __printf(3, 4)
|
|
void ufs_warning(struct super_block *, const char *, const char *, ...);
|
|
extern __printf(3, 4)
|
|
void ufs_error(struct super_block *, const char *, const char *, ...);
|
|
extern __printf(3, 4)
|
|
void ufs_panic(struct super_block *, const char *, const char *, ...);
|
|
void ufs_mark_sb_dirty(struct super_block *sb);
|
|
|
|
static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
|
|
{
|
|
return sb->s_fs_info;
|
|
}
|
|
|
|
static inline struct ufs_inode_info *UFS_I(struct inode *inode)
|
|
{
|
|
return container_of(inode, struct ufs_inode_info, vfs_inode);
|
|
}
|
|
|
|
/*
|
|
* Give cylinder group number for a file system block.
|
|
* Give cylinder group block number for a file system block.
|
|
*/
|
|
/* #define ufs_dtog(d) ((d) / uspi->s_fpg) */
|
|
static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
|
|
{
|
|
do_div(b, uspi->s_fpg);
|
|
return b;
|
|
}
|
|
/* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */
|
|
static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
|
|
{
|
|
return do_div(b, uspi->s_fpg);
|
|
}
|
|
|
|
#endif /* _UFS_UFS_H */
|