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 */
fsstack_copy_attr_atime(struct inode * dest,const struct inode * src)16 static inline void fsstack_copy_attr_atime(struct inode *dest,
17 					   const struct inode *src)
18 {
19 	inode_set_atime_to_ts(dest, inode_get_atime(src));
20 }
21 
fsstack_copy_attr_times(struct inode * dest,const struct inode * src)22 static inline void fsstack_copy_attr_times(struct inode *dest,
23 					   const struct inode *src)
24 {
25 	inode_set_atime_to_ts(dest, inode_get_atime(src));
26 	inode_set_mtime_to_ts(dest, inode_get_mtime(src));
27 	inode_set_ctime_to_ts(dest, inode_get_ctime(src));
28 }
29 
30 #endif /* _LINUX_FS_STACK_H */
31