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-rw-r--r--include/uapi/linux/mount.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/uapi/linux/mount.h b/include/uapi/linux/mount.h
index afdf4f2f6672..dc9a0112d819 100644
--- a/include/uapi/linux/mount.h
+++ b/include/uapi/linux/mount.h
@@ -176,9 +176,16 @@ struct statmount {
char str[]; /* Variable size part containing strings */
};
+/*
+ * Structure for passing mount ID and miscellaneous parameters to statmount(2)
+ * and listmount(2).
+ *
+ * For statmount(2) @param represents the request mask.
+ * For listmount(2) @param represents the last listed mount id (or zero).
+ */
struct mnt_id_req {
__u64 mnt_id;
- __u64 request_mask;
+ __u64 param;
};
/*
@@ -191,4 +198,9 @@ struct mnt_id_req {
#define STATMOUNT_MNT_POINT 0x00000010U /* Want/got mnt_point */
#define STATMOUNT_FS_TYPE 0x00000020U /* Want/got fs_type */
+/*
+ * Special @mnt_id values that can be passed to listmount
+ */
+#define LSMT_ROOT 0xffffffffffffffff /* root mount */
+
#endif /* _UAPI_LINUX_MOUNT_H */