Was investigating trying to fix emulation of some fallocate flags, and was wondering how common is it for a fs to very loosely report allocation size (st_blocks) for a file - ie the allocation sizes does not match the allocate ranges returned by fiemap (or SEEK_HOLE/SEEK_DATA). Presumably there are Linux fs that coalesce ranges on the fly so allocation sizes may be a 'guess' for some fs. How common is this for it to be off? -- Thanks, Steve
