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Date: Tue, 24 Nov 2015 17:28:54 -0800 From: Dan Williams <dan.j.williams@...el.com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, linux-arch@...r.kernel.org, Russell King <linux@....linux.org.uk>, Kees Cook <keescook@...omium.org>, Arnd Bergmann <arnd@...db.de>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Ingo Molnar <mingo@...hat.com>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org> Subject: Re: [PATCH v2 2/2] restrict /dev/mem to idle io memory ranges On Tue, Nov 24, 2015 at 4:47 PM, Andrew Morton <akpm@...ux-foundation.org> wrote: > On Tue, 24 Nov 2015 16:34:19 -0800 Dan Williams <dan.j.williams@...el.com> wrote: > >> > IOW, a very good description of the problem-being-solved would help out >> > a lot here... >> >> I'll fold the eventual result of this discussion into the changelog if >> I can convince you it's worth moving forward. > > I'm easily convinced ;) Please let's get all the info into the right > place, make sure it answers the thus-far-asked questions (at least) and > we'll take it from there. > > And please do have a think about switching as much as possible over to > runtime-configurability. Because "please echo foo > /proc" is a heck > of a lot nicer than "please reboot with iomem=" which is a heck of a lot > nicer than "please ask vendor for a new kernel". Actually, we already have runtime configuration. For example, if you want to muck with pmem via /dev/mem, just do this first: echo namespace0.0 > /sys/bus/nd/drivers/nd_pmem/unbind -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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