1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_MEMFD_H
3 #define __LINUX_MEMFD_H
4 
5 #include <linux/file.h>
6 
7 #ifdef CONFIG_MEMFD_CREATE
8 extern long memfd_fcntl(struct file *file, unsigned int cmd, unsigned int arg);
9 struct folio *memfd_alloc_folio(struct file *memfd, pgoff_t idx);
10 #else
memfd_fcntl(struct file * f,unsigned int c,unsigned int a)11 static inline long memfd_fcntl(struct file *f, unsigned int c, unsigned int a)
12 {
13 	return -EINVAL;
14 }
memfd_alloc_folio(struct file * memfd,pgoff_t idx)15 static inline struct folio *memfd_alloc_folio(struct file *memfd, pgoff_t idx)
16 {
17 	return ERR_PTR(-EINVAL);
18 }
19 #endif
20 
21 #endif /* __LINUX_MEMFD_H */
22