[linux-lvm] libdevmapper's handling of devices with spaces in the name

[Phillip Susi]

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So if I tell dmsetup to create a device named 'foo bar' it ends up
actually naming it 'foo\x20bar'.  If I run parted on 'foo\x20bar', it
appears that libdevmapper helpfully tries to unescape the name,
returning 'foo bar' from dm_task_get_name().  Unfortunately, such a
dev node does not actually exist so this creates a problem trying to
open it.

This seems like a bug in libdevmapper.  I'd say the name of the actual
dev node should not be escaped in the first place.

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