Re: [PATCH] xen-blkfront: Use the bitmap API when applicable

[Joe Perches <joe@xxxxxxxxxxx>]

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