1 /* SPDX-License-Identifier: GPL-2.0 */
2
3 #ifndef __STATMOUNT_H
4 #define __STATMOUNT_H
5
6 #include <stdint.h>
7 #include <linux/mount.h>
8 #include <asm/unistd.h>
9
10 static inline int statmount(uint64_t mnt_id, uint64_t mnt_ns_id, uint64_t mask,
11 struct statmount *buf, size_t bufsize,
12 unsigned int flags)
13 {
14 struct mnt_id_req req = {
15 .size = MNT_ID_REQ_SIZE_VER0,
16 .mnt_id = mnt_id,
17 .param = mask,
18 };
19
20 if (mnt_ns_id) {
21 req.size = MNT_ID_REQ_SIZE_VER1;
22 req.mnt_ns_id = mnt_ns_id;
23 }
24
25 return syscall(__NR_statmount, &req, buf, bufsize, flags);
26 }
27
28 static ssize_t listmount(uint64_t mnt_id, uint64_t mnt_ns_id,
29 uint64_t last_mnt_id, uint64_t list[], size_t num,
30 unsigned int flags)
31 {
32 struct mnt_id_req req = {
33 .size = MNT_ID_REQ_SIZE_VER0,
34 .mnt_id = mnt_id,
35 .param = last_mnt_id,
36 };
37
38 if (mnt_ns_id) {
39 req.size = MNT_ID_REQ_SIZE_VER1;
40 req.mnt_ns_id = mnt_ns_id;
41 }
42
43 return syscall(__NR_listmount, &req, list, num, flags);
44 }
45
46 #endif /* __STATMOUNT_H */
47
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