FillGapWithZeros
FillGapWithZeros(oldSize, pos);
status_t FillGapWithZeros(off_t oldSize, off_t newSize);
inode->FillGapWithZeros(oldSize, inode->Size());
status_t FillGapWithZeros(off_t start, off_t end);
status_t FillGapWithZeros(off_t start, off_t end);
FillGapWithZeros(oldSize, pos);
status_t FillGapWithZeros(off_t start, off_t end);
inode->FillGapWithZeros(oldSize, inode->Size());