From 1cc3965d48deb0fb3e0657159c608ffb124643c1 Mon Sep 17 00:00:00 2001
From: Xiao Yang <ice_yangxiao@163.com>
Date: Wed, 27 Nov 2019 11:59:24 +0800
Subject: [RHEL8.2 PATCH 48/61] Manage: Remove the legacy code for md driver
 prior to 0.90.03

Previous re-add operation only calls ioctl(HOT_ADD_DISK) for array without
metadata(e.g. mdadm -B/--build) when md driver is less than 0.90.02, but
commit 091e8e6 breaks the logic and current re-add operation can call
ioctl(HOT_ADD_DISK) even if md driver is 0.90.03.

This issue is reproduced by 05r1-re-add-nosuper:
------------------------------------------------
++ die 'resync or recovery is happening!'
++ echo -e '\n\tERROR: resync or recovery is happening! \n'
ERROR: resync or recovery is happening!
------------------------------------------------

Fixes: 091e8e6("Manage: Remove all references to md_get_version()")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Xiao Yang <ice_yangxiao@163.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
---
 Manage.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/Manage.c b/Manage.c
index 21536f5..ffe55f8 100644
--- a/Manage.c
+++ b/Manage.c
@@ -741,18 +741,6 @@ int Manage_add(int fd, int tfd, struct mddev_dev *dv,
 		       "       Adding anyway as --force was given.\n",
 		       dv->devname, devname);
 	}
-	if (!tst->ss->external && array->major_version == 0) {
-		if (ioctl(fd, HOT_ADD_DISK, rdev)==0) {
-			if (verbose >= 0)
-				pr_err("hot added %s\n",
-				       dv->devname);
-			return 1;
-		}
-
-		pr_err("hot add failed for %s: %s\n",
-		       dv->devname, strerror(errno));
-		return -1;
-	}
 
 	if (array->not_persistent == 0 || tst->ss->external) {
 
-- 
2.7.5