On Thu, 4 Apr 2024 16:25:14 +0000 Frank van der Linden <fvdl@xxxxxxxxxx> wrote: > cma_init_reserved_mem uses IS_ALIGNED to check if the size > represented by one bit in the cma allocation bitmask is > aligned with CMA_MIN_ALIGNMENT_BYTES (pageblock size). > > However, this is too strict, as this will fail if > order_per_bit > pageblock_order, which is a valid configuration. > > We could check IS_ALIGNED both ways, but since both numbers are > powers of two, no check is needed at all. What are the userspace visible effects of this bug?
