From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyril Hrubis Subject: Re: [PATCH v2] mmap.2: MAP_FIXED updated documentation Date: Wed, 6 Dec 2017 11:01:18 +0100 Message-ID: <20171206100118.GA13979@rei> References: <20171204021411.4786-1-jhubbard@nvidia.com> <20171204105549.GA31332@rei> <20171205070510.aojohhvixijk3i27@dhcp22.suse.cz> <2cff594a-b481-269d-dd91-ff2cc2f4100a@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <2cff594a-b481-269d-dd91-ff2cc2f4100a-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: John Hubbard Cc: Michal Hocko , Michael Kerrisk , linux-man , linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Michael Ellerman , linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, LKML , linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jann Horn , Matthew Wilcox List-Id: linux-api@vger.kernel.org Hi! > (It does seem unfortunate that the man page cannot help the programmer > actually write correct code here. He or she is forced to read the kernel > implementation, in order to figure out the true alignment rules. I was > hoping we could avoid that.) It would be nice if we had this information exported somehere so that we do not have to rely on per-architecture ifdefs. What about adding MapAligment or something similar to the /proc/meminfo? -- Cyril Hrubis chrubis-AlSwsSmVLrQ@public.gmane.org