zfsonlinux/zfs — pull request #2598 by dweeezil (2014-08-14 02:05:43+00:00)
Title: illumos 4970 through 4974 - extreme rewind enhancements

4970 need controls on i/o issued by zpool import -XF
4971 zpool import -T should accept hex values
4972 zpool import -T implies extreme rewind, and thus a scrub
4973 spa_load_retry retries the same txg
4974 spa_load_verify() reads all data twice
Reviewed by: Christopher Siden
Reviewed by: Dan McDonald
Reviewed by: George Wilson
Approved by: Robert Mustacchi

References:
https://www.illumos.org/issues/4970
https://www.illumos.org/issues/4971
https://www.illumos.org/issues/4972
https://www.illumos.org/issues/4973
https://www.illumos.org/issues/4974

Notes:
This set of patches adds a set of tunable parameters for the "extreme
rewind" mode of pool import which allows control over the implicit
scrub performed during such an import.

Ported by: Tim Chase