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#ifndef _LINUX_FS_STRUCT_H
#define _LINUX_FS_STRUCT_H

struct dentry;
struct vfsmount;

struct fs_struct {
        atomic_t count;
        rwlock_t lock;
        int umask;
        struct dentry * root, * pwd, * altroot;
        struct vfsmount * rootmnt, * pwdmnt, * altrootmnt;
};

#define INIT_FS {                               \
        .count          = ATOMIC_INIT(1),       \
        .lock           = RW_LOCK_UNLOCKED,     \
        .umask          = 0022, \
}

extern void exit_fs(struct task_struct *);
extern void set_fs_altroot(void);
extern void set_fs_root(struct fs_struct *, struct vfsmount *, struct dentry *);
extern void set_fs_pwd(struct fs_struct *, struct vfsmount *, struct dentry *);
extern struct fs_struct *copy_fs_struct(struct fs_struct *);
extern void put_fs_struct(struct fs_struct *);

#endif /* _LINUX_FS_STRUCT_H */