Merge OpenZFS support in to HEAD.

The primary benefit is maintaining a completely shared
code base with the community allowing FreeBSD to receive
new features sooner and with less effort.

I would advise against doing 'zpool upgrade'
or creating indispensable pools using new
features until this change has had a month+
to soak.

Work on merging FreeBSD support in to what was
at the time "ZFS on Linux" began in August 2018.
I first publicly proposed transitioning FreeBSD
to (new) OpenZFS on December 18th, 2018. FreeBSD
support in OpenZFS was finally completed in December
2019. A CFT for downstreaming OpenZFS support in
to FreeBSD was first issued on July 8th. All issues
that were reported have been addressed or, for
a couple of less critical matters there are
pull requests in progress with OpenZFS. iXsystems
has tested and dogfooded extensively internally.
The TrueNAS 12 release is based on OpenZFS with
some additional features that have not yet made
it upstream.

Improvements include:
  project quotas, encrypted datasets,
  allocation classes, vectorized raidz,
  vectorized checksums, various command line
  improvements, zstd compression.

Thanks to those who have helped along the way:
Ryan Moeller, Allan Jude, Zack Welch, and many
others.

Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D25872

1 files changed, 0 insertions, 212 deletions

diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_indirect_births.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_indirect_births.c
deleted file mode 100644
index fbecbe830929..000000000000
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_indirect_births.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * This file and its contents are supplied under the terms of the
- * Common Development and Distribution License ("CDDL"), version 1.0.
- * You may only use this file in accordance with the terms of version
- * 1.0 of the CDDL.
- *
- * A full copy of the text of the CDDL should have accompanied this
- * source.  A copy of the CDDL is also available via the Internet at
- * http://www.illumos.org/license/CDDL.
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright (c) 2015 by Delphix. All rights reserved.
- */
-
-#include <sys/dmu_tx.h>
-#include <sys/spa.h>
-#include <sys/dmu.h>
-#include <sys/dsl_pool.h>
-#include <sys/vdev_indirect_births.h>
-
-static boolean_t
-vdev_indirect_births_verify(vdev_indirect_births_t *vib)
-{
-	ASSERT(vib != NULL);
-
-	ASSERT(vib->vib_object != 0);
-	ASSERT(vib->vib_objset != NULL);
-	ASSERT(vib->vib_phys != NULL);
-	ASSERT(vib->vib_dbuf != NULL);
-
-	EQUIV(vib->vib_phys->vib_count > 0, vib->vib_entries != NULL);
-
-	return (B_TRUE);
-}
-
-uint64_t
-vdev_indirect_births_count(vdev_indirect_births_t *vib)
-{
-	ASSERT(vdev_indirect_births_verify(vib));
-
-	return (vib->vib_phys->vib_count);
-}
-
-uint64_t
-vdev_indirect_births_object(vdev_indirect_births_t *vib)
-{
-	ASSERT(vdev_indirect_births_verify(vib));
-
-	return (vib->vib_object);
-}
-
-static uint64_t
-vdev_indirect_births_size_impl(vdev_indirect_births_t *vib)
-{
-	return (vib->vib_phys->vib_count * sizeof (*vib->vib_entries));
-}
-
-void
-vdev_indirect_births_close(vdev_indirect_births_t *vib)
-{
-	ASSERT(vdev_indirect_births_verify(vib));
-
-	if (vib->vib_phys->vib_count > 0) {
-		uint64_t births_size = vdev_indirect_births_size_impl(vib);
-
-		kmem_free(vib->vib_entries, births_size);
-		vib->vib_entries = NULL;
-	}
-
-	dmu_buf_rele(vib->vib_dbuf, vib);
-
-	vib->vib_objset = NULL;
-	vib->vib_object = 0;
-	vib->vib_dbuf = NULL;
-	vib->vib_phys = NULL;
-
-	kmem_free(vib, sizeof (*vib));
-}
-
-uint64_t
-vdev_indirect_births_alloc(objset_t *os, dmu_tx_t *tx)
-{
-	ASSERT(dmu_tx_is_syncing(tx));
-
-	return (dmu_object_alloc(os,
-	    DMU_OTN_UINT64_METADATA, SPA_OLD_MAXBLOCKSIZE,
-	    DMU_OTN_UINT64_METADATA, sizeof (vdev_indirect_birth_phys_t),
-	    tx));
-}
-
-vdev_indirect_births_t *
-vdev_indirect_births_open(objset_t *os, uint64_t births_object)
-{
-	vdev_indirect_births_t *vib = kmem_zalloc(sizeof (*vib), KM_SLEEP);
-
-	vib->vib_objset = os;
-	vib->vib_object = births_object;
-
-	VERIFY0(dmu_bonus_hold(os, vib->vib_object, vib, &vib->vib_dbuf));
-	vib->vib_phys = vib->vib_dbuf->db_data;
-
-	if (vib->vib_phys->vib_count > 0) {
-		uint64_t births_size = vdev_indirect_births_size_impl(vib);
-		vib->vib_entries = kmem_alloc(births_size, KM_SLEEP);
-		VERIFY0(dmu_read(vib->vib_objset, vib->vib_object, 0,
-		    births_size, vib->vib_entries, DMU_READ_PREFETCH));
-	}
-
-	ASSERT(vdev_indirect_births_verify(vib));
-
-	return (vib);
-}
-
-void
-vdev_indirect_births_free(objset_t *os, uint64_t object, dmu_tx_t *tx)
-{
-	VERIFY0(dmu_object_free(os, object, tx));
-}
-
-void
-vdev_indirect_births_add_entry(vdev_indirect_births_t *vib,
-    uint64_t max_offset, uint64_t txg, dmu_tx_t *tx)
-{
-	vdev_indirect_birth_entry_phys_t vibe;
-	uint64_t old_size;
-	uint64_t new_size;
-	vdev_indirect_birth_entry_phys_t *new_entries;
-
-	ASSERT(dmu_tx_is_syncing(tx));
-	ASSERT(dsl_pool_sync_context(dmu_tx_pool(tx)));
-	ASSERT(vdev_indirect_births_verify(vib));
-
-	dmu_buf_will_dirty(vib->vib_dbuf, tx);
-
-	vibe.vibe_offset = max_offset;
-	vibe.vibe_phys_birth_txg = txg;
-
-	old_size = vdev_indirect_births_size_impl(vib);
-	dmu_write(vib->vib_objset, vib->vib_object, old_size, sizeof (vibe),
-	    &vibe, tx);
-	vib->vib_phys->vib_count++;
-	new_size = vdev_indirect_births_size_impl(vib);
-
-	new_entries = kmem_alloc(new_size, KM_SLEEP);
-	if (old_size > 0) {
-		bcopy(vib->vib_entries, new_entries, old_size);
-		kmem_free(vib->vib_entries, old_size);
-	}
-	new_entries[vib->vib_phys->vib_count - 1] = vibe;
-	vib->vib_entries = new_entries;
-}
-
-uint64_t
-vdev_indirect_births_last_entry_txg(vdev_indirect_births_t *vib)
-{
-	ASSERT(vdev_indirect_births_verify(vib));
-	ASSERT(vib->vib_phys->vib_count > 0);
-
-	vdev_indirect_birth_entry_phys_t *last =
-	    &vib->vib_entries[vib->vib_phys->vib_count - 1];
-	return (last->vibe_phys_birth_txg);
-}
-
-/*
- * Return the txg in which the given range was copied (i.e. its physical
- * birth txg).  The specified offset+asize must be contiguously mapped
- * (i.e. not a split block).
- *
- * The entries are sorted by increasing phys_birth, and also by increasing
- * offset.  We find the specified offset by binary search.  Note that we
- * can not use bsearch() because looking at each entry independently is
- * insufficient to find the correct entry.  Each entry implicitly relies
- * on the previous entry: an entry indicates that the offsets from the
- * end of the previous entry to the end of this entry were written in the
- * specified txg.
- */
-uint64_t
-vdev_indirect_births_physbirth(vdev_indirect_births_t *vib, uint64_t offset,
-    uint64_t asize)
-{
-	vdev_indirect_birth_entry_phys_t *base;
-	vdev_indirect_birth_entry_phys_t *last;
-
-	ASSERT(vdev_indirect_births_verify(vib));
-	ASSERT(vib->vib_phys->vib_count > 0);
-
-	base = vib->vib_entries;
-	last = base + vib->vib_phys->vib_count - 1;
-
-	ASSERT3U(offset, <, last->vibe_offset);
-
-	while (last >= base) {
-		vdev_indirect_birth_entry_phys_t *p =
-		    base + ((last - base) / 2);
-		if (offset >= p->vibe_offset) {
-			base = p + 1;
-		} else if (p == vib->vib_entries ||
-		    offset >= (p - 1)->vibe_offset) {
-			ASSERT3U(offset + asize, <=, p->vibe_offset);
-			return (p->vibe_phys_birth_txg);
-		} else {
-			last = p - 1;
-		}
-	}
-	ASSERT(!"offset not found");
-	return (-1);
-}