Hello, Bernhard!

"mountpoint -n PATH" refuses to find out the name of mounted device in
case of so-called "anonymous superblock", e.g. for btrfs.
That is, reported st.st_rdev doesn't correspond to any block device under /dev

http://www.mail-archive.com/[email protected]/msg02870.html

To outline the problem I prepared a patch (attached).
Please, comment, and may be fix.

Regards,
--
Vladimir

Attachment: test.patch
Description: Binary data

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