On Mon, Mar 8, 2021 at 8:44 AM Jason Gunthorpe <jgg@xxxxxxxxxx> wrote:
>
> On Sun, Mar 07, 2021 at 10:28:33PM +0800, Zhu Yanjun wrote:
> > From: Zhu Yanjun <zyjzyj2000@xxxxxxxxx>
> >
> > After the commit ("RDMA/umem: Move to allocate SG table from pages"),
> > the sg list from ib_ume_get is like the following:
>
> If you are not getting huge pages then you need to fix
> __sg_alloc_table_from_pages()
>
> But as far as I know it is not buggy like you are describing.
In the same host and the same test, both __sg_alloc_table_from_pages
and ib_umem_add_sg_table
are called at the same time, but the returned sg lists are different.
It is weird.
Zhu Yanjun
>
> > The new function is ib_umem_get to ib_umem_hugepage_get that calls
> > ib_umem_add_sg_table.
>
> Nope
>
> Jason
