xfs_scrub: lack of kernel support is not a service failure

From: Darrick J. Wong <[email protected]>

Don't treat a lack of kernel support for scrubbing as an automated service failure because we have not actually determined that there's anything wrong with the filesystem.

Signed-off-by Darrick J. Wong <[email protected]>

---
 scrub/xfs_scrub.c |    6 ++++++
 1 file changed, 6 insertions(+)

scrub/xfs_scrub.c +6 -0

index 33b83a5f..6a0304d2 100644
@@ -779,9 +779,15 @@ main(
 	 * for capturing all the log messages if the scrub fails, because the
 	 * fail service uses the service name to gather log messages for the
 	 * error report.
+	 *
+	 * Note: We don't count a lack of kernel support as a service failure
+	 * because we haven't determined that there's anything wrong with the
+	 * filesystem.
 	 */
 	if (is_service) {
 		sleep(2);
+		if (!ctx.scrub_setup_succeeded)
+			return 0;
 		if (ret != SCRUB_RET_SUCCESS)
 			return 1;
 	}