Re: Fwd: [PATCH 1/1] RDMA/umem: add back hugepage sg list
From: Zhu Yanjun <zyjzyj2000@gmail.com>
Date: 2021-03-08 02:49:03
On Mon, Mar 8, 2021 at 8:44 AM Jason Gunthorpe [off-list ref] wrote:
On Sun, Mar 07, 2021 at 10:28:33PM +0800, Zhu Yanjun wrote:quoted
From: Zhu Yanjun <zyjzyj2000@gmail.com> 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
quoted
The new function is ib_umem_get to ib_umem_hugepage_get that calls ib_umem_add_sg_table.Nope Jason