Hi Or,
在 2015年09月24日 19:57, Or Gerlitz 写道:
On Thu, Sep 24, 2015 at 1:49 PM, Wengang Wang <[email protected]> wrote:
@@ -786,8 +787,14 @@ static int create_qp_common(struct mlx4_ib_dev *dev,
struct ib_pd *pd,
if (err)
goto err_mtt;
- qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof (u64), gfp);
- qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof (u64), gfp);
+ qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(u64), gfp);
+ if (!qp->sq.wrid)
+ qp->sq.wrid = __vmalloc(qp->sq.wqe_cnt * sizeof(u64),
+ gfp, PAGE_KERNEL);
On other spots of mlx4, we're using vmalloc and not __vmalloc, any
pros/cons for going that way too here?
vmalloc is just using GFP_KERNEL | __GFP_HIGHMEM, we can't pass in the
flag gfp with it. We should respect orginal code which needs to pass
the flag.
thanks,
wengang
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