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