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zpool split can create a corrupted pool

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Added vdev_resilver_needed() check to verify VDEVs are fully
synced, so that after split the new pool will not be corrupted.

Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: Roman Strashkin <roman.strashkin@nexenta.com>
Closes #7865
Closes #7881
This commit is contained in:
Roman Strashkin
2018-09-13 04:14:42 +03:00
committed by Brian Behlendorf
parent b8a90418f3
commit 733b5722b4
4 changed files with 116 additions and 5 deletions
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module/zfs/spa.c
+3 -3
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@@ -22,8 +22,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2017 by Delphix. All rights reserved.
* Copyright (c) 2015, Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2013, 2014, Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2018, Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
* Copyright 2013 Saso Kiselkov. All rights reserved.
* Copyright (c) 2014 Integros [integros.com]
@@ -6485,7 +6484,8 @@ spa_vdev_split_mirror(spa_t *spa, char *newname, nvlist_t *config,
break;
}
if (vdev_dtl_required(vml[c])) {
if (vdev_dtl_required(vml[c]) ||
vdev_resilver_needed(vml[c], NULL, NULL)) {
error = SET_ERROR(EBUSY);
break;
}