Re: [PATCH v6 rdma-next 5/6] RDMA/qedr: Add doorbell overflow recovery support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jul 09, 2019 at 05:17:34PM +0300, Michal Kalderon wrote:

> +static int qedr_init_user_db_rec(struct ib_udata *udata,
> +				 struct qedr_dev *dev, struct qedr_userq *q,
> +				 bool requires_db_rec)
> +{
> +	struct qedr_ucontext *uctx =
> +		rdma_udata_to_drv_context(udata, struct qedr_ucontext,
> +					  ibucontext);
> +
> +	/* Aborting for non doorbell userqueue (SRQ) or non-supporting lib */
> +	if (requires_db_rec == 0 || !uctx->db_rec)
> +		return 0;
> +
> +	/* Allocate a page for doorbell recovery, add to mmap ) */
> +	q->db_rec_data = (void *)get_zeroed_page(GFP_KERNEL);

I now think this needs to be GFP_USER and our other drivers have a bug
here as well..

Jason



[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Yosemite Photos]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux