[LTP] [PATCH] syscalls/fanotify: Kill the child process before exit

[Zhao Gongyi]

Before the main process exit abnormally, we need to kill
the child process.

Signed-off-by: Zhao Gongyi <zhaogongyi@huawei.com>
---
 .../kernel/syscalls/fanotify/fanotify07.c     | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/syscalls/fanotify/fanotify07.c b/testcases/kernel/syscalls/fanotify/fanotify07.c
index cc56d9019..0a0b4f1e4 100644
--- a/testcases/kernel/syscalls/fanotify/fanotify07.c
+++ b/testcases/kernel/syscalls/fanotify/fanotify07.c
@@ -108,6 +108,39 @@ static int setup_instance(void)
 	return fd;
 }

+static int setup_another_instance(void)
+{
+	int rval;
+	int fd = fanotify_init(FAN_CLASS_CONTENT, O_RDONLY);
+
+	if (fd == -1) {
+		stop_children();
+		tst_brk(TBROK | TERRNO, "fanotify_init() failed");
+	}
+
+	if (fd < -1) {
+		stop_children();
+		tst_brk(TBROK | TERRNO,
+			"invalid fanotify_init() return %d", fd);
+	}
+
+	rval = fanotify_mark(fd,
+		FAN_MARK_ADD, FAN_ACCESS_PERM, AT_FDCWD, fname);
+
+	if (rval == -1) {
+		stop_children();
+		tst_brk(TBROK | TERRNO, "fanotify_mark() failed");
+	}
+
+	if (rval < -1) {
+		stop_children();
+		tst_brk(TBROK | TERRNO,
+			"invalid fanotify_mark() return %d", rval);
+	}
+
+	return fd;
+}
+
 static void loose_fanotify_events(void)
 {
 	int not_responded = 0;
@@ -160,7 +193,7 @@ static void test_fanotify(void)
 	 * Create and destroy another instance. This may hang if
 	 * unanswered fanotify events block notification subsystem.
 	 */
-	newfd = setup_instance();
+	newfd = setup_another_instance();

 	SAFE_CLOSE(newfd);

--
2.17.1