[PATCH v3 9/9] syscalls/fanotify21: Test capture of multiple errors

[Gabriel Krisman Bertazi <krisman@collabora.com>]

When multiple FS errors occur, only the first is stored.  This testcase
validates this behavior by issuing two different errors and making sure
only the first is stored, while the second is simply accumulated in
error_count.

Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
---
 .../kernel/syscalls/fanotify/fanotify21.c     | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/testcases/kernel/syscalls/fanotify/fanotify21.c b/testcases/kernel/syscalls/fanotify/fanotify21.c
index e463365dd69d..7f0154da5eeb 100644
--- a/testcases/kernel/syscalls/fanotify/fanotify21.c
+++ b/testcases/kernel/syscalls/fanotify/fanotify21.c
@@ -74,6 +74,18 @@ static void tcase2_trigger_lookup(void)
 			ret, BAD_DIR, errno, EUCLEAN);
 }
 
+static void tcase3_trigger(void)
+{
+	trigger_fs_abort();
+	tcase2_trigger_lookup();
+}
+
+static void tcase4_trigger(void)
+{
+	tcase2_trigger_lookup();
+	trigger_fs_abort();
+}
+
 static struct test_case {
 	char *name;
 	int error;
@@ -95,6 +107,20 @@ static struct test_case {
 		.error = EFSCORRUPTED,
 		.fid = &bad_file_fid,
 	},
+	{
+		.name = "Multiple error submission",
+		.trigger_error = &tcase3_trigger,
+		.error_count = 2,
+		.error = ESHUTDOWN,
+		.fid = &null_fid,
+	},
+	{
+		.name = "Multiple error submission 2",
+		.trigger_error = &tcase4_trigger,
+		.error_count = 2,
+		.error = EFSCORRUPTED,
+		.fid = &bad_file_fid,
+	}
 };
 
 int check_error_event_info_fid(struct fanotify_event_info_fid *fid,
-- 
2.33.0