illumos gate

I believe this should be reopened. See this bug in zfsonlinux:
https://github.com/zfsonlinux/zfs/issues/2081

On OI 151a8, the commands below (copied from here ) produce the same incorrect result:

root@host:/% zfs create tank/test
root@host:/% cd /tank/test
root@host:/tank/test% touch a
root@host:/tank/test% zfs snapshot tank/test@1
root@host:/tank/test% zfs snapshot tank/test@2
root@host:/tank/test% rm a
root@host:/tank/test% zfs diff tank/test@1
M       /tank/test/
-       /tank/test/a
root@host:/tank/test% zfs diff tank/test@2
M       /tank/test/
root@host:/tank/test%

B T wrote in #note-6:

On OI 151a8, the commands below (copied from here ) produce the same incorrect result:

[...]

I just tested it with illumos-da37308cbe (about a week old) and the issue is still reproducible using the steps provided.

Updated Subject to match https://github.com/openzfs/zfs/commit/7290cd3c4ed19fb3f75b8133db2e36afcdd24beb