illumos gate

remove_raidz can fail:

Test: /opt/zfs-tests/tests/functional/removal/remove_raidz (run as root) [03:42] [FAIL]
02:04:34.14 SUCCESS: mkfile 268435456 /tmp/dsk1
02:04:34.28 SUCCESS: mkfile 268435456 /tmp/dsk2
02:04:34.40 SUCCESS: mkfile 268435456 /tmp/dsk3
02:04:34.49 SUCCESS: zpool create -f testpool /tmp/dsk1 raidz /tmp/dsk2 /tmp/dsk3
02:04:34.52 SUCCESS: zfs create testpool/testfs
02:04:34.56 SUCCESS: zfs set mountpoint=/var/tmp/testdir testpool/testfs
02:04:34.57 SUCCESS: default_setup_noexit /tmp/dsk1 raidz /tmp/dsk2 /tmp/dsk3
02:04:34.57 SUCCESS: zpool remove testpool /tmp/dsk1 exited 1
02:04:34.58 SUCCESS: zpool remove testpool /tmp/dsk2 exited 1
02:04:34.59 SUCCESS: zpool remove testpool raidz1-1 exited 1
02:04:34.59 NOTE: Performing local cleanup via log_onexit (cleanup)
02:08:16.86 SUCCESS: rm -rf /var/tmp/testdir
02:08:16.92 rm: raidz is a directory
02:08:16.92 ERROR: rm -f /tmp/dsk1 raidz /tmp/dsk2 /tmp/dsk3 exited 2

So the fix is to move "raidz" out of disks list.

Test: /opt/zfs-tests/tests/functional/removal/remove_raidz (run as root) [03:51] [PASS]
10:23:41.17 SUCCESS: mkfile 268435456 /tmp/dsk1
10:23:41.31 SUCCESS: mkfile 268435456 /tmp/dsk2
10:23:41.45 SUCCESS: mkfile 268435456 /tmp/dsk3
10:23:41.73 SUCCESS: zpool create -f testpool /tmp/dsk1 raidz /tmp/dsk2 /tmp/dsk3
10:23:41.75 SUCCESS: zfs create testpool/testfs
10:23:41.80 SUCCESS: zfs set mountpoint=/var/tmp/testdir testpool/testfs
10:23:41.80 SUCCESS: default_setup_noexit /tmp/dsk1 raidz /tmp/dsk2 /tmp/dsk3
10:23:41.81 SUCCESS: zpool remove testpool /tmp/dsk1 exited 1
10:23:41.82 SUCCESS: zpool remove testpool /tmp/dsk2 exited 1
10:23:41.83 SUCCESS: zpool remove testpool raidz1-1 exited 1
10:23:41.83 NOTE: Performing local cleanup via log_onexit (cleanup)
10:27:32.83 SUCCESS: rm -rf /var/tmp/testdir
10:27:32.93 SUCCESS: rm -f /tmp/dsk1 /tmp/dsk2 /tmp/dsk3
10:27:32.93 Removal will not succeed if there is a top level mirror.
Test: /opt/zfs-tests/tests/functional/removal/cleanup (run as root) [00:00] [PASS]