linux-ext4 - [PATCH v2 08/10] syscalls/fanotify20: Test event after filesystem abort

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Date:   Tue, 26 Oct 2021 15:42:37 -0300
From:   Gabriel Krisman Bertazi <krisman@...labora.com>
To:     ltp@...ts.linux.it, jack@...e.com, amir73il@...il.com
Cc:     khazhy@...gle.com, kernel@...labora.com,
        linux-ext4@...r.kernel.org, repnop@...gle.com,
        Gabriel Krisman Bertazi <krisman@...labora.com>
Subject: [PATCH v2 08/10] syscalls/fanotify20: Test event after filesystem abort

This test monitors the error triggered after a file system abort.  It
works by forcing a remount with the option "abort".  This is an error
not related to a file so it is reported against the superblock with a
zero size fh.

Signed-off-by: Gabriel Krisman Bertazi <krisman@...labora.com>
---
 testcases/kernel/syscalls/fanotify/fanotify20.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/testcases/kernel/syscalls/fanotify/fanotify20.c b/testcases/kernel/syscalls/fanotify/fanotify20.c
index 298bb303a810..5c5ee3c6fb74 100644
--- a/testcases/kernel/syscalls/fanotify/fanotify20.c
+++ b/testcases/kernel/syscalls/fanotify/fanotify20.c
@@ -57,6 +57,12 @@ static void do_debugfs_request(const char *dev, char *request)
 	SAFE_CMD(cmd, NULL, NULL);
 }
 
+static void trigger_fs_abort(void)
+{
+	SAFE_MOUNT(tst_device->dev, MOUNT_PATH, tst_device->fs_type,
+		   MS_REMOUNT|MS_RDONLY, "abort");
+}
+
 static struct test_case {
 	char *name;
 	int error;
@@ -64,6 +70,13 @@ static struct test_case {
 	struct fanotify_fid_t *fid;
 	void (*trigger_error)(void);
 } testcases[] = {
+	{
+		.name = "Trigger abort",
+		.trigger_error = &trigger_fs_abort,
+		.error_count = 1,
+		.error = ESHUTDOWN,
+		.fid = &null_fid,
+	},
 };
 
 int check_error_event_info_fid(struct fanotify_event_info_fid *fid,
-- 
2.33.0