avg d6fce51483 MFV r329718: 8520 7198 lzc_rollback_to should support rolling back to origin ... illumos/illumos-gate@95643f75d2 95643f75d2 https://www.illumos.org/issues/8520 lzc_rollback_to() should support rolling back to a clone's origin. The current checks in zfs_ioc_rollback() would not allow that because the origin snapshot belongs to a different filesystem. The overly restrictive check was introduced in 7600, but it was not a regression as none of the existing tools provided a way to rollback to the origin. https://www.illumos.org/issues/7198 EINVAL is returned when a dataset does not have any snapshots, so there is nothing to roll back to. Although the code in zfs_do_rollback checks for that condition in advance, it's still possible that the snapshot(s) gets removed after the check and before the rollback sync task is executed. At the moment zfs command would crash when that happens. Reviewed by: Matthew Ahrens <mahrens@delphix.com> Approved by: Dan McDonald <danmcd@joyent.com> Author: Andriy Gapon <avg@FreeBSD.org> MFC after: 2 weeks		2018-02-21 15:12:14 +00:00
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boot/zfs	Mark two things as unused (since they are only sometimes used) and	2017-12-03 04:55:33 +00:00
compat/opensolaris	Use per-domain locks for vm page queue free. Move paging control from	2018-02-06 22:10:07 +00:00
contrib/opensolaris	MFV r329718: 8520 7198 lzc_rollback_to should support rolling back to origin	2018-02-21 15:12:14 +00:00
dev	Avoid CPU migration in dtrace_gethrtime() on x86.	2017-12-18 17:26:24 +00:00