[LTP] [PATCH v3 03/11] Add listmount/statmount fallback declarations

[Andrea Cervesato]

From: Andrea Cervesato <andrea.cervesato@suse.com>

---
 configure.ac         |  5 ++++
 include/lapi/mount.h | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 include/lapi/stat.h  | 10 +++++++-
 3 files changed, 84 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 85c5739c4..80462d2f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -113,6 +113,7 @@ AC_CHECK_FUNCS_ONCE([ \
     io_uring_register \
     io_uring_enter \
     kcmp \
+    listmount \
     mallinfo \
     mallinfo2 \
     mallopt \
@@ -142,6 +143,7 @@ AC_CHECK_FUNCS_ONCE([ \
     setns \
     sigpending \
     splice \
+    statmount \
     statx \
     stime \
     sync_file_range \
@@ -233,6 +235,9 @@ AC_CHECK_TYPES([struct mount_attr],,,[
 #endif
 ])
 
+AC_CHECK_TYPES([struct mnt_id_req],,,[#include <linux/mount.h>])
+AC_CHECK_TYPES([struct statmount],,,[#include <linux/mount.h>])
+
 # Tools knobs
 
 # Bash
diff --git a/include/lapi/mount.h b/include/lapi/mount.h
index c1af944fe..01a0fd2d6 100644
--- a/include/lapi/mount.h
+++ b/include/lapi/mount.h
@@ -2,12 +2,15 @@
 /*
  * Copyright (c) Linux Test Project, 2015-2022
  * Copyright (c) 2015 Cui Bixuan <cuibixuan@huawei.com>
+ * Copyright (C) 2024 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
  */
 
 #ifndef LAPI_MOUNT_H__
 #define LAPI_MOUNT_H__
 
+#include <stdint.h>
 #include <sys/mount.h>
+#include "config.h"
 
 #ifndef MS_REC
 # define MS_REC 16384
@@ -37,4 +40,71 @@
 # define MS_NOSYMFOLLOW 256
 #endif
 
+#ifndef HAVE_STRUCT_MNT_ID_REQ
+struct mnt_id_req {
+	uint32_t size;
+	uint32_t spare;
+	uint64_t mnt_id;
+	uint64_t param;
+};
+#endif
+
+#ifndef HAVE_STRUCT_STATMOUNT
+struct statmount {
+	uint32_t size;
+	uint32_t __spare1;
+	uint64_t mask;
+	uint32_t sb_dev_major;
+	uint32_t sb_dev_minor;
+	uint64_t sb_magic;
+	uint32_t sb_flags;
+	uint32_t fs_type;
+	uint64_t mnt_id;
+	uint64_t mnt_parent_id;
+	uint32_t mnt_id_old;
+	uint32_t mnt_parent_id_old;
+	uint64_t mnt_attr;
+	uint64_t mnt_propagation;
+	uint64_t mnt_peer_group;
+	uint64_t mnt_master;
+	uint64_t propagate_from;
+	uint32_t mnt_root;
+	uint32_t mnt_point;
+	uint64_t __spare2[50];
+	char str[];
+};
+#endif
+
+#ifndef MNT_ID_REQ_SIZE_VER0
+# define MNT_ID_REQ_SIZE_VER0 24
+#endif
+
+#ifndef STATMOUNT_SB_BASIC
+# define STATMOUNT_SB_BASIC 0x00000001U
+#endif
+
+#ifndef STATMOUNT_MNT_BASIC
+# define STATMOUNT_MNT_BASIC 0x00000002U
+#endif
+
+#ifndef STATMOUNT_PROPAGATE_FROM
+# define STATMOUNT_PROPAGATE_FROM 0x00000004U
+#endif
+
+#ifndef STATMOUNT_MNT_ROOT
+# define STATMOUNT_MNT_ROOT 0x00000008U
+#endif
+
+#ifndef STATMOUNT_MNT_POINT
+# define STATMOUNT_MNT_POINT 0x00000010U
+#endif
+
+#ifndef STATMOUNT_FS_TYPE
+# define STATMOUNT_FS_TYPE 0x00000020U
+#endif
+
+#ifndef LSMT_ROOT
+# define LSMT_ROOT 0xffffffffffffffff
+#endif
+
 #endif /* LAPI_MOUNT_H__ */
diff --git a/include/lapi/stat.h b/include/lapi/stat.h
index 3606c9eb0..84dc76faf 100644
--- a/include/lapi/stat.h
+++ b/include/lapi/stat.h
@@ -95,7 +95,11 @@ struct statx {
 	uint32_t	stx_dev_major;
 	uint32_t	stx_dev_minor;
 	/* 0x90 */
-	uint64_t	__spare2[14];
+	__u64	stx_mnt_id;
+	__u32	stx_dio_mem_align;
+	__u32	stx_dio_offset_align;
+	/* 0xa0 */
+	__u64	__spare3[12];
 	/* 0x100 */
 };
 #endif
@@ -229,4 +233,8 @@ static inline int statx(int dirfd, const char *pathname, unsigned int flags,
 # define STATX_ATTR_VERITY	0x00100000
 #endif
 
+#ifndef STATX_MNT_ID_UNIQUE
+# define STATX_MNT_ID_UNIQUE  0x00004000U
+#endif
+
 #endif /* LAPI_STAT_H__ */

-- 
2.35.3