aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/tools/testing/selftests/filesystems/statmount/statmount.h
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing/selftests/filesystems/statmount/statmount.h')
-rw-r--r--tools/testing/selftests/filesystems/statmount/statmount.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/tools/testing/selftests/filesystems/statmount/statmount.h b/tools/testing/selftests/filesystems/statmount/statmount.h
new file mode 100644
index 000000000000..99e5ad082fb1
--- /dev/null
+++ b/tools/testing/selftests/filesystems/statmount/statmount.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __STATMOUNT_H
+#define __STATMOUNT_H
+
+#include <stdint.h>
+#include <linux/mount.h>
+#include <asm/unistd.h>
+
+#ifndef __NR_statmount
+ #if defined __alpha__
+ #define __NR_statmount 567
+ #elif defined _MIPS_SIM
+ #if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
+ #define __NR_statmount 4457
+ #endif
+ #if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
+ #define __NR_statmount 6457
+ #endif
+ #if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
+ #define __NR_statmount 5457
+ #endif
+ #else
+ #define __NR_statmount 457
+ #endif
+#endif
+
+#ifndef __NR_listmount
+ #if defined __alpha__
+ #define __NR_listmount 568
+ #elif defined _MIPS_SIM
+ #if _MIPS_SIM == _MIPS_SIM_ABI32 /* o32 */
+ #define __NR_listmount 4458
+ #endif
+ #if _MIPS_SIM == _MIPS_SIM_NABI32 /* n32 */
+ #define __NR_listmount 6458
+ #endif
+ #if _MIPS_SIM == _MIPS_SIM_ABI64 /* n64 */
+ #define __NR_listmount 5458
+ #endif
+ #else
+ #define __NR_listmount 458
+ #endif
+#endif
+
+static inline int statmount(uint64_t mnt_id, uint64_t mnt_ns_id, uint64_t mask,
+ struct statmount *buf, size_t bufsize,
+ unsigned int flags)
+{
+ struct mnt_id_req req = {
+ .size = MNT_ID_REQ_SIZE_VER0,
+ .mnt_id = mnt_id,
+ .param = mask,
+ };
+
+ if (mnt_ns_id) {
+ req.size = MNT_ID_REQ_SIZE_VER1;
+ req.mnt_ns_id = mnt_ns_id;
+ }
+
+ return syscall(__NR_statmount, &req, buf, bufsize, flags);
+}
+
+static inline ssize_t listmount(uint64_t mnt_id, uint64_t mnt_ns_id,
+ uint64_t last_mnt_id, uint64_t list[], size_t num,
+ unsigned int flags)
+{
+ struct mnt_id_req req = {
+ .size = MNT_ID_REQ_SIZE_VER0,
+ .mnt_id = mnt_id,
+ .param = last_mnt_id,
+ };
+
+ if (mnt_ns_id) {
+ req.size = MNT_ID_REQ_SIZE_VER1;
+ req.mnt_ns_id = mnt_ns_id;
+ }
+
+ return syscall(__NR_listmount, &req, list, num, flags);
+}
+
+#endif /* __STATMOUNT_H */