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MFV r338866: 9700 ZFS resilvered mirror does not balance reads

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illumos/illumos-gate@82f63c3c2b

Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Sanjay Nadkarni <sanjay.nadkarni@nexenta.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Matthew Ahrens <mahrens@delphix.com>
Author:     Jerry Jelinek <jerry.jelinek@joyent.com>

Approved by:	re (delphij)
This commit is contained in:
Alexander Motin 2018-09-21 21:56:00 +00:00
commit ae1b0b825a
1 changed files with 4 additions and 1 deletions
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5
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
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@ -28,7 +28,7 @@
* Copyright 2013 Saso Kiselkov. All rights reserved.
* Copyright (c) 2014 Integros [integros.com]
* Copyright 2016 Toomas Soome <tsoome@me.com>
* Copyright 2017 Joyent, Inc.
* Copyright 2018 Joyent, Inc.
* Copyright (c) 2017 Datto Inc.
* Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
*/
@ -6923,6 +6923,7 @@ spa_vdev_resilver_done_hunt(vdev_t *vd)
/*
* Check for a completed resilver with the 'unspare' flag set.
* Also potentially update faulted state.
*/
if (vd->vdev_ops == &vdev_spare_ops) {
vdev_t *first = vd->vdev_child[0];
@ -6944,6 +6945,8 @@ spa_vdev_resilver_done_hunt(vdev_t *vd)
!vdev_dtl_required(oldvd))
return (oldvd);
vdev_propagate_state(vd);
/*
* If there are more than two spares attached to a disk,
* and those spares are not required, then we want to