From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Ng Subject: Re: How to use IB netlink infrastructure Date: Fri, 27 Apr 2012 05:25:46 +0000 (UTC) Message-ID: References: <1828884A29C6694DAF28B7E6B8A82373469D7D42@ORSMSX101.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org Hefty, Sean writes: >> What is the actual entry point in the IB kernel code >> that results in a call to get_user_pages()? > > I believe the memory registration calls will result in this being called. >Look for ib_uverbs_reg_mr. Thanks for your helpful suggestions Sean. I've noticed this article on LWN.net: http://lwn.net/Articles/133649/ It was written in 2005 and points out some shortcomings with using get_user_pages() for RDMA. Do you know if these shortcomings have been addressed since 2005? If not, is there perhaps another way RDMA has been implemented in the kernel? -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html