On 2020-05-12 10:00 am, Marek Szyprowski wrote:
struct sg_table is a common structure used for describing a memory
buffer. It consists of a scatterlist with memory pages and DMA addresses
(sgl entry), as well as the number of scatterlist entries: CPU pages
(orig_nents entry) and DMA mapped pages
Hi Christoph,
On 12.05.2020 15:09, Christoph Hellwig wrote:
> On Tue, May 12, 2020 at 03:00:31PM +0200, Marek Szyprowski wrote:
>>> if (n <= 0)
>>> return -EINVAL;
>>> sgt->nents = n;
>>> return 0;
>>>
>> Indeed this version looks much better. I will resend it in a few minu
On Tue, May 12, 2020 at 03:00:31PM +0200, Marek Szyprowski wrote:
> > if (n <= 0)
> > return -EINVAL;
> > sgt->nents = n;
> > return 0;
> >
> Indeed this version looks much better. I will resend it in a few minutes.
I could also just fix it up when applying the patch.
_
Hi Christoph,
On 12.05.2020 14:18, Christoph Hellwig wrote:
> On Tue, May 12, 2020 at 11:00:21AM +0200, Marek Szyprowski wrote:
>> struct sg_table is a common structure used for describing a memory
>> buffer. It consists of a scatterlist with memory pages and DMA addresses
>> (sgl entry), as well
On Tue, May 12, 2020 at 11:00:21AM +0200, Marek Szyprowski wrote:
> struct sg_table is a common structure used for describing a memory
> buffer. It consists of a scatterlist with memory pages and DMA addresses
> (sgl entry), as well as the number of scatterlist entries: CPU pages
> (orig_nents entr
struct sg_table is a common structure used for describing a memory
buffer. It consists of a scatterlist with memory pages and DMA addresses
(sgl entry), as well as the number of scatterlist entries: CPU pages
(orig_nents entry) and DMA mapped pages (nents entry).
It turned out that it was a common
