[LTP] [PATCH] fstat02: Verify st_ino field

Jinseok Kim always.starving0@gmail.com
Thu Jun 4 17:06:41 CEST 2026


fstat01 does not currently verify the st_ino field.

Add a check to verify that fstat() reports the expected inode number,
improving coverage of the metadata returned by fstat().

Signed-off-by: Jinseok Kim <always.starving0@gmail.com>
---
 testcases/kernel/syscalls/fstat/fstat02.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/testcases/kernel/syscalls/fstat/fstat02.c b/testcases/kernel/syscalls/fstat/fstat02.c
index 68cbe82f0..e7175cfac 100644
--- a/testcases/kernel/syscalls/fstat/fstat02.c
+++ b/testcases/kernel/syscalls/fstat/fstat02.c
@@ -19,6 +19,7 @@
 #define NLINK	        2

 static struct stat stat_buf;
+static struct stat link_stat_buf;
 static uid_t user_id;
 static gid_t group_id;
 static int fildes;
@@ -31,6 +32,7 @@ static void run(void)
 	TST_EXP_EQ_LI(stat_buf.st_size, FILE_SIZE);
 	TST_EXP_EQ_LU(stat_buf.st_mode & 0777, FILE_MODE);
 	TST_EXP_EQ_LU(stat_buf.st_nlink, NLINK);
+	TST_EXP_EQ_LU(stat_buf.st_ino, link_stat_buf.st_ino);
 }

 static void setup(void)
@@ -46,6 +48,8 @@ static void setup(void)
 		tst_brk(TBROK, "Could not fill test file");

 	SAFE_LINK(TESTFILE, LINK_TESTFILE);
+
+	SAFE_STAT(LINK_TESTFILE, &link_stat_buf);
 }

 static void cleanup(void)
--
2.43.0


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