From: Chenghai Huang <huangchenghai2@huawei.com> It just need to align with 1M, but here currently, memory of a size that is a multiple of 1M has been requested. Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com> --- v1/wd_bmm.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/v1/wd_bmm.c b/v1/wd_bmm.c index cdf5f0b..c58484f 100644 --- a/v1/wd_bmm.c +++ b/v1/wd_bmm.c @@ -116,12 +116,13 @@ static int wd_pool_pre_layout(struct wd_queue *q, p->act_mem_sz = (p->act_hd_sz + p->act_blk_sz) * (unsigned long)sp->block_num + asz; - /* When we use WD reserve memory and the blk_sz is larger than 1M, + /* + * When we use WD reserve memory and the blk_sz is larger than 1M, * in order to ensure the mem_pool to be success, - * we should to reserve more memory + * ensure that the allocated memory is an integer multiple of 1M. */ if (!sp->br.alloc && !qinfo->iommu_type) - p->act_mem_sz *= (1 + p->act_blk_sz / BLK_BALANCE_SZ); + p->act_mem_sz = (p->act_mem_sz + BLK_BALANCE_SZ - 1) & ~(BLK_BALANCE_SZ - 1); return WD_SUCCESS; } -- 2.33.0