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FreeBSD rS271776 Persist vdev_resilver_txg changes #4790

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FreeBSD rS271776 Persist vdev_resilver_txg changes #4790

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7 changes: 5 additions & 2 deletions module/zfs/vdev.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1909,12 +1909,15 @@ vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg, int scrub_done)

/*
* If the vdev was resilvering and no longer has any
* DTLs then reset its resilvering flag.
* DTLs then reset its resilvering flag and dirty
* the top level so that we persist the change.
*/
if (vd->vdev_resilver_txg != 0 &&
range_tree_space(vd->vdev_dtl[DTL_MISSING]) == 0 &&
range_tree_space(vd->vdev_dtl[DTL_OUTAGE]) == 0)
range_tree_space(vd->vdev_dtl[DTL_OUTAGE]) == 0) {
vd->vdev_resilver_txg = 0;
vdev_config_dirty(vd->vdev_top);
}

mutex_exit(&vd->vdev_dtl_lock);

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