include/linux/fs_struct.h

   1 #ifndef _LINUX_FS_STRUCT_H
   2 #define _LINUX_FS_STRUCT_H
   3
   4 struct dentry;
   5 struct vfsmount;
   6
   7 struct fs_struct {
   8         atomic_t count;
   9         rwlock_t lock;
  10         int umask;
  11         struct dentry * root, * pwd, * altroot;
  12         struct vfsmount * rootmnt, * pwdmnt, * altrootmnt;
  13 };
  14
  15 #define INIT_FS {                               \
  16         .count          = ATOMIC_INIT(1),       \
  17         .lock           = RW_LOCK_UNLOCKED,     \
  18         .umask          = 0022, \
  19 }
  20
  21 extern struct kmem_cache *fs_cachep;
  22
  23 extern void exit_fs(struct task_struct *);
  24 extern void set_fs_altroot(void);
  25 extern void set_fs_root(struct fs_struct *, struct vfsmount *, struct dentry *);
  26 extern void set_fs_pwd(struct fs_struct *, struct vfsmount *, struct dentry *);
  27 extern struct fs_struct *copy_fs_struct(struct fs_struct *);
  28 extern void put_fs_struct(struct fs_struct *);
  29
  30 #endif /* _LINUX_FS_STRUCT_H */