Remove code for zfs remap

The "zfs remap" command was disabled by
6e91a72fe3ff8bb282490773bd687632f3e8c79d, because it has little utility
and introduced some tricky bugs.  This commit removes the code for it,
the associated ZFS_IOC_REMAP ioctl, and tests.

Note that the ioctl and property will remain, but have no functionality.
This allows older software to fail gracefully if it attempts to use
these, and avoids a backwards incompatibility that would be introduced if
we renumbered the later ioctls/props.

Reviewed-by: Tom Caputi <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Matthew Ahrens <[email protected]>
Closes #8944 

14 files changed, 20 insertions, 387 deletions

diff --git a/tests/runfiles/linux.run b/tests/runfiles/linux.run
index b73528e43..4a9c06065 100644
--- a/tests/runfiles/linux.run
+++ b/tests/runfiles/linux.run
@@ -210,10 +210,6 @@ tests = ['zfs_receive_001_pos', 'zfs_receive_002_pos', 'zfs_receive_003_pos',
     'zfs_receive_raw_incremental', 'zfs_receive_-e']
 tags = ['functional', 'cli_root', 'zfs_receive']
 
-[tests/functional/cli_root/zfs_remap]
-tests = ['zfs_remap_cliargs', 'zfs_remap_obsolete_counts']
-tags = ['functional', 'cli_root', 'zfs_remap']
-
 [tests/functional/cli_root/zfs_rename]
 tests = ['zfs_rename_001_pos', 'zfs_rename_002_pos', 'zfs_rename_003_pos',
     'zfs_rename_004_neg', 'zfs_rename_005_neg', 'zfs_rename_006_pos',
@@ -767,11 +763,11 @@ tags = ['functional', 'refreserv']
 pre =
 tests = ['removal_all_vdev', 'removal_check_space',
     'removal_condense_export', 'removal_multiple_indirection',
-    'removal_remap', 'removal_remap_deadlists',
+    'removal_remap_deadlists',
     'removal_resume_export', 'removal_sanity', 'removal_with_add',
     'removal_with_create_fs', 'removal_with_dedup',
     'removal_with_errors', 'removal_with_export',
-    'removal_with_ganging', 'removal_with_faulted', 'removal_with_remap',
+    'removal_with_ganging', 'removal_with_faulted',
     'removal_with_remove', 'removal_with_scrub', 'removal_with_send',
     'removal_with_send_recv', 'removal_with_snapshot',
     'removal_with_write', 'removal_with_zdb', 'remove_expanded',
diff --git a/tests/test-runner/bin/zts-report.py b/tests/test-runner/bin/zts-report.py
index d046c13a5..b6f3cf22c 100755
--- a/tests/test-runner/bin/zts-report.py
+++ b/tests/test-runner/bin/zts-report.py
@@ -186,7 +186,6 @@ known = {
     'inuse/inuse_007_pos': ['SKIP', na_reason],
     'privilege/setup': ['SKIP', na_reason],
     'refreserv/refreserv_004_pos': ['FAIL', known_reason],
-    'removal/removal_condense_export': ['SKIP', known_reason],
     'removal/removal_with_zdb': ['SKIP', known_reason],
     'rootpool/setup': ['SKIP', na_reason],
     'rsend/rsend_008_pos': ['SKIP', '6066'],
diff --git a/tests/zfs-tests/tests/functional/alloc_class/alloc_class_012_pos.ksh b/tests/zfs-tests/tests/functional/alloc_class/alloc_class_012_pos.ksh
index bd6c6631f..7ab6a0543 100755
--- a/tests/zfs-tests/tests/functional/alloc_class/alloc_class_012_pos.ksh
+++ b/tests/zfs-tests/tests/functional/alloc_class/alloc_class_012_pos.ksh
@@ -93,14 +93,7 @@ for i in 1 2 3 4; do
 	log_must file_in_special_vdev $dataset $inum
 done
 
-#
-# remove a special allocation vdev and force a remapping
-# N.B. The 'zfs remap' command has been disabled and may be removed.
-#
-export ZFS_REMAP_ENABLED=YES
-
 log_must zpool remove $TESTPOOL $CLASS_DISK0
-log_must zfs remap $TESTPOOL/$TESTFS
 
 sleep 5
 log_must sync_pool $TESTPOOL
diff --git a/tests/zfs-tests/tests/functional/cli_root/Makefile.am b/tests/zfs-tests/tests/functional/cli_root/Makefile.am
index 99f125783..58f789514 100644
--- a/tests/zfs-tests/tests/functional/cli_root/Makefile.am
+++ b/tests/zfs-tests/tests/functional/cli_root/Makefile.am
@@ -20,7 +20,6 @@ SUBDIRS = \
 	zfs_promote \
 	zfs_property \
 	zfs_receive \
-	zfs_remap \
 	zfs_rename \
 	zfs_reservation \
 	zfs_rollback \
diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/Makefile.am b/tests/zfs-tests/tests/functional/cli_root/zfs_remap/Makefile.am
deleted file mode 100644
index 91abff68c..000000000
--- a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/Makefile.am
+++ /dev/null
@@ -1,7 +0,0 @@
-pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/cli_root/zfs_remap
-
-dist_pkgdata_SCRIPTS = \
-	setup.ksh \
-	cleanup.ksh \
-	zfs_remap_cliargs.ksh \
-	zfs_remap_obsolete_counts.ksh
diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/cleanup.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_remap/cleanup.ksh
deleted file mode 100755
index e78deacd5..000000000
--- a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/cleanup.ksh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/ksh -p
-#
-# 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.
-#
-
-#
-# Copyright 2018, loli10K <[email protected]>. All rights reserved.
-#
-
-. $STF_SUITE/include/libtest.shlib
-
-default_cleanup
diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/setup.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_remap/setup.ksh
deleted file mode 100755
index 4497dbd74..000000000
--- a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/setup.ksh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/ksh -p
-#
-# 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.
-#
-
-#
-# Copyright 2018, loli10K <[email protected]>. All rights reserved.
-#
-
-. $STF_SUITE/include/libtest.shlib
diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/zfs_remap_cliargs.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_remap/zfs_remap_cliargs.ksh
deleted file mode 100755
index 80a5e6e0d..000000000
--- a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/zfs_remap_cliargs.ksh
+++ /dev/null
@@ -1,81 +0,0 @@
-#!/bin/ksh -p
-#
-# 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.
-#
-
-#
-# Copyright 2018, loli10K <[email protected]>. All rights reserved.
-#
-
-. $STF_SUITE/include/libtest.shlib
-. $STF_SUITE/tests/functional/removal/removal.kshlib
-
-#
-# DESCRIPTION:
-# 'zfs remap' should only work with supported parameters.
-#
-# STRATEGY:
-# 1. Prepare a pool where a top-level VDEV has been removed
-# 2. Verify every supported parameter to 'zfs remap' is accepted
-# 3. Verify other unsupported parameters raise an error
-#
-
-# The 'zfs remap' command has been disabled and may be removed.
-export ZFS_REMAP_ENABLED=YES
-
-verify_runnable "both"
-
-function cleanup
-{
-	destroy_pool $TESTPOOL
-	rm -f $DISK1 $DISK2
-}
-
-log_assert "'zfs remap' should only work with supported parameters"
-log_onexit cleanup
-
-f="$TESTPOOL/fs"
-v="$TESTPOOL/vol"
-s="$TESTPOOL/fs@snap"
-b="$TESTPOOL/fs#bmark"
-c="$TESTPOOL/clone"
-
-typeset goodparams=("$f" "$v" "$c")
-typeset badparams=("-H" "-p" "-?" "$s" "$b" "$f $f" "$f $v" "$f $s")
-
-DISK1="$TEST_BASE_DIR/zfs_remap-1"
-DISK2="$TEST_BASE_DIR/zfs_remap-2"
-
-# 1. Prepare a pool where a top-level VDEV has been removed
-log_must truncate -s $(($MINVDEVSIZE * 2)) $DISK1
-log_must zpool create $TESTPOOL $DISK1
-log_must zfs create $f
-log_must zfs create -V 1M -s $v
-log_must zfs snap $s
-log_must zfs bookmark $s $b
-log_must zfs clone $s $c
-log_must truncate -s $(($MINVDEVSIZE * 2)) $DISK2
-log_must zpool add $TESTPOOL $DISK2
-log_must zpool remove $TESTPOOL $DISK1
-log_must wait_for_removal $TESTPOOL
-
-# 2. Verify every supported parameter to 'zfs remap' is accepted
-for param in "${goodparams[@]}"
-do
-	log_must zfs remap $param
-done
-
-# 3. Verify other unsupported parameters raise an error
-for param in "${badparams[@]}"
-do
-	log_mustnot zfs remap $param
-done
-
-log_pass "'zfs remap' only works with supported parameters"
diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/zfs_remap_obsolete_counts.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_remap/zfs_remap_obsolete_counts.ksh
deleted file mode 100755
index 1f0e0e85d..000000000
--- a/tests/zfs-tests/tests/functional/cli_root/zfs_remap/zfs_remap_obsolete_counts.ksh
+++ /dev/null
@@ -1,79 +0,0 @@
-#!/bin/ksh -p
-#
-# 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.
-#
-
-#
-# Copyright 2018, loli10K <[email protected]>. All rights reserved.
-#
-
-. $STF_SUITE/include/libtest.shlib
-. $STF_SUITE/tests/functional/removal/removal.kshlib
-
-#
-# DESCRIPTION:
-# 'zfs remap' depends on 'feature@obsolete_counts' being active
-#
-# STRATEGY:
-# 1. Prepare a pool where a top-level VDEV has been removed and with
-#    feature@obsolete_counts disabled
-# 2. Verify any 'zfs remap' command cannot be executed
-# 3. Verify the same commands complete successfully when
-#    feature@obsolete_counts is enabled
-#
-
-# N.B. The 'zfs remap' command has been disabled and may be removed.
-export ZFS_REMAP_ENABLED=YES
-
-verify_runnable "both"
-
-function cleanup
-{
-	destroy_pool $TESTPOOL
-	rm -f $DISK1 $DISK2
-}
-
-log_assert "'zfs remap' depends on feature@obsolete_counts being active"
-log_onexit cleanup
-
-f="$TESTPOOL/fs"
-v="$TESTPOOL/vol"
-s="$TESTPOOL/fs@snap"
-c="$TESTPOOL/clone"
-
-DISK1="$TEST_BASE_DIR/zfs_remap-1"
-DISK2="$TEST_BASE_DIR/zfs_remap-2"
-
-# 1. Prepare a pool where a top-level VDEV has been removed with
-#    feature@obsolete_counts disabled
-log_must truncate -s $(($MINVDEVSIZE * 2)) $DISK1
-log_must zpool create -o feature@obsolete_counts=disabled $TESTPOOL $DISK1
-log_must zfs create $f
-log_must zfs create -V 1M -s $v
-log_must zfs snap $s
-log_must zfs clone $s $c
-log_must truncate -s $(($MINVDEVSIZE * 2)) $DISK2
-log_must zpool add $TESTPOOL $DISK2
-log_must zpool remove $TESTPOOL $DISK1
-log_must wait_for_removal $TESTPOOL
-
-# 2. Verify any 'zfs remap' command cannot be executed
-log_mustnot zfs remap $f
-log_mustnot zfs remap $v
-log_mustnot zfs remap $c
-
-# 3. Verify the same commands complete successfully when
-#    feature@obsolete_counts is enabled
-log_must zpool set feature@obsolete_counts=enabled $TESTPOOL
-log_must zfs remap $f
-log_must zfs remap $v
-log_must zfs remap $c
-
-log_pass "'zfs remap' correctly depends on feature@obsolete_counts being active"
diff --git a/tests/zfs-tests/tests/functional/removal/Makefile.am b/tests/zfs-tests/tests/functional/removal/Makefile.am
index ba42b899a..dc52bf1f2 100644
--- a/tests/zfs-tests/tests/functional/removal/Makefile.am
+++ b/tests/zfs-tests/tests/functional/removal/Makefile.am
@@ -18,12 +18,12 @@ pkgdatadir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/removal
 dist_pkgdata_SCRIPTS = \
 	cleanup.ksh removal_all_vdev.ksh removal_check_space.ksh \
 	removal_condense_export.ksh removal_multiple_indirection.ksh \
-	removal_remap_deadlists.ksh removal_remap.ksh \
+	removal_remap_deadlists.ksh \
 	removal_reservation.ksh removal_resume_export.ksh \
 	removal_sanity.ksh removal_with_add.ksh removal_with_create_fs.ksh \
 	removal_with_dedup.ksh removal_with_errors.ksh \
 	removal_with_export.ksh removal_with_faulted.ksh \
-	removal_with_ganging.ksh removal_with_remap.ksh \
+	removal_with_ganging.ksh \
 	removal_with_remove.ksh removal_with_scrub.ksh \
 	removal_with_send.ksh removal_with_send_recv.ksh \
 	removal_with_snapshot.ksh removal_with_write.ksh \
diff --git a/tests/zfs-tests/tests/functional/removal/removal_condense_export.ksh b/tests/zfs-tests/tests/functional/removal/removal_condense_export.ksh
index ad33caec8..655352f05 100755
--- a/tests/zfs-tests/tests/functional/removal/removal_condense_export.ksh
+++ b/tests/zfs-tests/tests/functional/removal/removal_condense_export.ksh
@@ -21,10 +21,6 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/functional/removal/removal.kshlib
 
-if is_linux; then
-	log_unsupported "ZDB fails during concurrent pool activity."
-fi
-
 function reset
 {
 	log_must set_tunable64 zfs_condense_indirect_commit_entry_delay_ms 0
@@ -77,7 +73,14 @@ log_must zpool remove $TESTPOOL $REMOVEDISK
 log_must wait_for_removal $TESTPOOL
 log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
 
-log_must zfs remap $TESTPOOL/$TESTFS
+#
+# Touch one block under each L1 indirect block, so that the other data blocks
+# will be remapped to their concrete locations.  These parameters assume
+# recordsize=512, indirect block size of 128K (1024 block pointers per
+# indirect block), and file size of less than 20*1024 blocks (10MB).
+#
+log_must stride_dd -i /dev/urandom -o $TESTDIR/file -b 512 -c 20 -s 1024
+
 sync_pool $TESTPOOL
 sleep 5
 sync_pool $TESTPOOL
diff --git a/tests/zfs-tests/tests/functional/removal/removal_remap.ksh b/tests/zfs-tests/tests/functional/removal/removal_remap.ksh
deleted file mode 100755
index 5239ef3a5..000000000
--- a/tests/zfs-tests/tests/functional/removal/removal_remap.ksh
+++ /dev/null
@@ -1,126 +0,0 @@
-#! /bin/ksh -p
-#
-# 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, 2016 by Delphix. All rights reserved.
-#
-
-. $STF_SUITE/include/libtest.shlib
-. $STF_SUITE/tests/functional/removal/removal.kshlib
-
-# N.B. The 'zfs remap' command has been disabled and may be removed.
-export ZFS_REMAP_ENABLED=YES
-
-default_setup_noexit "$DISKS"
-
-
-function cleanup
-{
-	set_tunable64 zfs_condense_min_mapping_bytes 131072
-	default_cleanup_noexit
-}
-
-log_onexit cleanup
-
-log_must set_tunable64 zfs_condense_min_mapping_bytes 1
-
-log_must zfs set recordsize=512 $TESTPOOL/$TESTFS
-
-#
-# Create a large file so that we know some of the blocks will be on the
-# removed device, and hence eligible for remapping.
-#
-log_must dd if=/dev/urandom of=$TESTDIR/file bs=$((2**12)) count=$((2**9))
-
-#
-# Randomly rewrite some of blocks in the file so that there will be holes and
-# we will not be able to remap the entire file in a few huge chunks.
-#
-for i in $(seq $((2**12))); do
-	#
-	# We have to sync periodically so that all the writes don't end up in
-	# the same txg. If they were all in the same txg, only the last write
-	# would go through and we would not have as many allocations to
-	# fragment the file.
-	#
-	((i % 100 > 0 )) || sync_pool || log_fail "Could not sync."
-        random_write $TESTDIR/file $((2**9)) || \
-            log_fail "Could not random write."
-done
-
-#
-# Remap should quietly succeed as a noop before a removal.
-#
-log_must zfs remap $TESTPOOL/$TESTFS
-remaptxg_before=$(zfs get -H -o value remaptxg $TESTPOOL/$TESTFS)
-(( $? == 0 )) || log_fail "Could not get remaptxg."
-[[ $remaptxg_before == "-" ]] || \
-    log_fail "remaptxg ($remaptxg_before) had value before a removal"
-
-log_must zpool remove $TESTPOOL $REMOVEDISK
-log_must wait_for_removal $TESTPOOL
-log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
-
-#
-# remaptxg should not be set if we haven't done a remap.
-#
-remaptxg_before=$(zfs get -H -o value remaptxg $TESTPOOL/$TESTFS)
-(( $? == 0 )) || log_fail "Could not get remaptxg."
-[[ $remaptxg_before == "-" ]] || \
-    log_fail "remaptxg ($remaptxg_before) had value before a removal"
-
-mapping_size_before=$(indirect_vdev_mapping_size $TESTPOOL)
-log_must zfs remap $TESTPOOL/$TESTFS
-
-# Try to wait for a condense to finish.
-for i in {1..5}; do
-	sleep 5
-	sync_pool
-done
-mapping_size_after=$(indirect_vdev_mapping_size $TESTPOOL)
-
-#
-# After the remap, there should not be very many blocks referenced. The reason
-# why our threshold is as high as 512 is because our ratio of metadata to
-# user data is relatively high, with only 64M of user data on the file system.
-#
-(( mapping_size_after < mapping_size_before )) || \
-    log_fail "Mapping size did not decrease after remap: " \
-    "$mapping_size_before before to $mapping_size_after after."
-(( mapping_size_after < 512 )) || \
-    log_fail "Mapping size not small enough after remap: " \
-    "$mapping_size_before before to $mapping_size_after after."
-
-#
-# After a remap, the remaptxg should be set to a non-zero value.
-#
-remaptxg_after=$(zfs get -H -o value remaptxg $TESTPOOL/$TESTFS)
-(( $? == 0 )) || log_fail "Could not get remaptxg."
-log_note "remap txg after remap is $remaptxg_after"
-(( remaptxg_after > 0 )) || log_fail "remaptxg not increased"
-
-#
-# Remap should quietly succeed as a noop if there have been no removals since
-# the last remap.
-#
-log_must zfs remap $TESTPOOL/$TESTFS
-remaptxg_again=$(zfs get -H -o value remaptxg $TESTPOOL/$TESTFS)
-(( $? == 0 )) || log_fail "Could not get remaptxg."
-log_note "remap txg after second remap is $remaptxg_again"
-(( remaptxg_again == remaptxg_after )) || \
-    log_fail "remap not noop if there has been no removal"
-
-log_pass "Remapping a fs caused mapping size to decrease."
diff --git a/tests/zfs-tests/tests/functional/removal/removal_remap_deadlists.ksh b/tests/zfs-tests/tests/functional/removal/removal_remap_deadlists.ksh
index a2f6580b4..6db3587c5 100755
--- a/tests/zfs-tests/tests/functional/removal/removal_remap_deadlists.ksh
+++ b/tests/zfs-tests/tests/functional/removal/removal_remap_deadlists.ksh
@@ -21,9 +21,6 @@
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/functional/removal/removal.kshlib
 
-# N.B. The 'zfs remap' command has been disabled and may be removed.
-export ZFS_REMAP_ENABLED=YES
-
 default_setup_noexit "$DISKS"
 log_onexit default_cleanup_noexit
 
@@ -45,7 +42,14 @@ fi
 log_mustnot vdevs_in_pool $TESTPOOL $REMOVEDISK
 log_must zdb -cd $TESTPOOL
 
-log_must zfs remap $TESTPOOL/$TESTFS
+#
+# Touch one block under each L1 indirect block, so that the other data blocks
+# will be remapped to their concrete locations.  These parameters assume
+# recordsize=128K, indirect block size of 128K (1024 block pointers per
+# indirect block), and file size of less than 3*1024 blocks (384MB).
+#
+log_must stride_dd -i /dev/urandom -o $TESTDIR/file -b 131072 -c 3 -s 1024
+
 log_must zdb -cd $TESTPOOL
 
 log_must zfs snapshot $TESTPOOL/$TESTFS@snap-post3
diff --git a/tests/zfs-tests/tests/functional/removal/removal_with_remap.ksh b/tests/zfs-tests/tests/functional/removal/removal_with_remap.ksh
deleted file mode 100755
index 6f56740b8..000000000
--- a/tests/zfs-tests/tests/functional/removal/removal_with_remap.ksh
+++ /dev/null
@@ -1,32 +0,0 @@
-#! /bin/ksh -p
-#
-# 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, 2017 by Delphix. All rights reserved.
-#
-
-. $STF_SUITE/include/libtest.shlib
-. $STF_SUITE/tests/functional/removal/removal.kshlib
-
-# N.B. The 'zfs remap' command has been disabled and may be removed.
-export ZFS_REMAP_ENABLED=YES
-
-default_setup_noexit "$DISKS"
-log_onexit default_cleanup_noexit
-
-test_removal_with_operation zfs remap $TESTPOOL/$TESTFS
-
-log_pass "Can remap a filesystem during removal"