Il 09/03/2012 09:35, Chris Wedgwood ha scritto: >> SEEK_HOLE could provide a very simple heuristic to detect preallocated >> files (unfortunately ext4 does not implement SEEK_HOLE yet). > > SEEK_HOLE is a weird (confusing and no intuitive) API (IMO). There is > FIEMAP or whatever it's called which seems somewhat saner.
FIEMAP is a powertool, we need a butter knife only (cit.). > Simplest still compare the blocks allocated by the file > to it's length (ie. stat.st_blocks != stat.st_size>>9). But yes, you're right about this. Paolo
