086b0a799e
The dc_tankvolume_t type had information about metric vs imperial volume, but we actually want other things too, like the actual usage of the cylinder. So rename it to 'dc_tankinfo_t' and extend the semantics from an enumeration of volume units, to be a bitmap of information flags. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>