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fs/ufs/ufs.h
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/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _UFS_UFS_H #define _UFS_UFS_H 1 |
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#ifdef pr_fmt #undef pr_fmt #endif #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#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; |
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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 */ |
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struct mutex s_lock; |
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}; struct ufs_inode_info { union { __fs32 i_data[15]; |
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__u8 i_symlink[2 * 4 * 15]; |
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__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; |
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seqlock_t meta_lock; struct mutex truncate_mutex; |
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__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...) { \ |
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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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} #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 *); |
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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 *); 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, |
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struct page *page, struct inode *inode, bool update_times); |
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/* file.c */ extern const struct inode_operations ufs_file_inode_operations; extern const struct file_operations ufs_file_operations; |
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extern const struct address_space_operations ufs_aops; /* ialloc.c */ 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 dentry *dentry, struct iattr *attr); |
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/* namei.c */ extern const struct file_operations ufs_dir_operations; /* super.c */ |
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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 *, ...); |
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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) { 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 */ |