mdadm/0200-mdadm-Manage-Clear-superblock-if-adding-new-device-f.patch

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From c6ca5b31e18f92490e639de0e5eae88985628633 Mon Sep 17 00:00:00 2001
From: Xiao Ni <xni@redhat.com>
Date: Fri, 18 Oct 2024 16:48:16 +0800
Subject: [PATCH 200/201] mdadm/Manage: Clear superblock if adding new device
fails
The superblock is kept if adding new device fails. It should clear the
superblock if it fails to add a new disk.
Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
---
Manage.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Manage.c b/Manage.c
index 246ef319..8c58683b 100644
--- a/Manage.c
+++ b/Manage.c
@@ -793,6 +793,7 @@ int Manage_add(int fd, int tfd, struct mddev_dev *dv,
int j;
mdu_disk_info_t disc;
struct map_ent *map = NULL;
+ bool add_new_super = false;
if (!get_dev_size(tfd, dv->devname, &ldsize)) {
if (dv->disposition == 'M')
@@ -1011,6 +1012,7 @@ int Manage_add(int fd, int tfd, struct mddev_dev *dv,
goto unlock;
if (tst->ss->write_init_super(tst))
goto unlock;
+ add_new_super = true;
} else if (dv->disposition == 'A') {
/* this had better be raid1.
* As we are "--re-add"ing we must find a spare slot
@@ -1078,6 +1080,8 @@ int Manage_add(int fd, int tfd, struct mddev_dev *dv,
map_unlock(&map);
return 1;
unlock:
+ if (add_new_super)
+ Kill(dv->devname, tst, 0, -1, 0);
map_unlock(&map);
return -1;
}
--
2.41.0