include/linux/fs_stack.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_FS_STACK_H
   3 #define _LINUX_FS_STACK_H
   4
   5 /* This file defines generic functions used primarily by stackable
   6  * filesystems; none of these functions require i_mutex to be held.
   7  */
   8
   9 #include <linux/fs.h>
  10
  11 /* externs for fs/stack.c */
  12 extern void fsstack_copy_attr_all(struct inode *dest, const struct inode *src);
  13 extern void fsstack_copy_inode_size(struct inode *dst, struct inode *src);
  14
  15 /* inlines */
  16 static inline void fsstack_copy_attr_atime(struct inode *dest,
  17                                            const struct inode *src)
  18 {
  19         dest->i_atime = src->i_atime;
  20 }
  21
  22 static inline void fsstack_copy_attr_times(struct inode *dest,
  23                                            const struct inode *src)
  24 {
  25         dest->i_atime = src->i_atime;
  26         dest->i_mtime = src->i_mtime;
  27         dest->i_ctime = src->i_ctime;
  28 }
  29
  30 #endif /* _LINUX_FS_STACK_H */