[LU-13957] Snapshot name only takes up to first space

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Labels: lsnapshot
• Severity: 3
• Assignee: WC Triage
• Reporter: Joe Grund

Description

Consider:

[root@mds1 ~]# lctl snapshot_create --name 'foo bar baz' --fsname zfsmo --barrier off
The snapshot foo bar baz exists
Can't create the snapshot foo bar baz

However, the snapshot foo bar baz does not exist although the snapshot foo does:

filesystem_name: zfsmo
snapshot_name: foo
snapshot_fsname: 5c7b22a7
modify_time: Fri Sep 11 16:35:11 2020
create_time: Fri Sep 11 16:35:11 2020
comment: Backup for Sept 10 2020
status: not mount

It seems that spaces are not allowed in snapshot names, if so we should return an error instead of matching on substring.