On Sat, 2021-12-04 at 07:57 +0100, Christophe JAILLET wrote: > So, maybe adding an "official" 'bitmap_size()' (which is already > existing and duplicated in a few places) would ease things. > > It would replace the 'nr_minors = BITS_TO_LONGS(end) * BITS_PER_LONG;' > and hide the implementation details of the bitmap API. > > Something like: > static __always_inline size_t bitmap_size(unsigned long nr_bits) > { > return BITS_TO_LONGS(nr_bits) * sizeof(long); > } Or maybe a bitmap_realloc