Hi, I am about to implement /proc/self/mountinfo support for df. This feature is marked as TODO in sources. I have found a suitable parser provided by libmount from util-linux [1]. This could be the best option here in my opinion.
The change might also reflect gnulib. Items in mount entries (struct mount_entry from mountlist.h) should be propagated from libmount. I want to know if such change will be accepted. Do you have any additional notes to discuss? Have a nice day, Fridolin Pokorny. [1] http://git.kernel.org/cgit/utils/util-linux/util-linux.git
