1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _NAMESPACE_H_ 3 #define _NAMESPACE_H_ 4 #ifdef __KERNEL__ 5 6 #include <linux/cleanup.h> 7 #include <linux/err.h> 8 9 struct mnt_namespace; 10 struct fs_struct; 11 struct user_namespace; 12 struct ns_common; 13 14 extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *, 15 struct user_namespace *, struct fs_struct *); 16 extern void put_mnt_ns(struct mnt_namespace *ns); 17 DEFINE_FREE(put_mnt_ns, struct mnt_namespace *, if (!IS_ERR_OR_NULL(_T)) put_mnt_ns(_T)) 18 extern struct ns_common *from_mnt_ns(struct mnt_namespace *); 19 20 extern const struct file_operations proc_mounts_operations; 21 extern const struct file_operations proc_mountinfo_operations; 22 extern const struct file_operations proc_mountstats_operations; 23 24 #endif 25 #endif 26