Re: [PATCH v2 2/6] bitmap: replace _reg_op(REG_OP_ALLOC) with bitmap_set()

From: Rasmus Villemoes
Date: Fri Aug 11 2023 - 02:21:42 EST


On 11/08/2023 02.57, Yury Norov wrote:
> _reg_op(REG_OP_ALLOC) duplicates bitmap_set(). Fix it.
>
> Signed-off-by: Yury Norov <yury.norov@xxxxxxxxx>
> ---
> lib/bitmap.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/lib/bitmap.c b/lib/bitmap.c
> index 3a589016f5e0..c9afe704fe4b 100644
> --- a/lib/bitmap.c
> +++ b/lib/bitmap.c
> @@ -1352,9 +1352,12 @@ EXPORT_SYMBOL(bitmap_release_region);
> */
> int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order)
> {
> + unsigned int nbits = pos + BIT(order);
> +

That really doesn't sound right. Have you added self-tests for these
functions first and then used those to catch regressions?

Rasmus