From: "Ahmed S. Darwish" Subject: Re: [PATCH 01/13] kdbus: add documentation Date: Fri, 23 Jan 2015 08:28:20 +0200 Message-ID: <20150123062820.GB7949@Darwish.PC> References: <1421435777-25306-1-git-send-email-gregkh@linuxfoundation.org> <1421435777-25306-2-git-send-email-gregkh@linuxfoundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1421435777-25306-2-git-send-email-gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Greg Kroah-Hartman Cc: arnd-r2nGTMty4D4@public.gmane.org, ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org, gnomes-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org, teg-B22kvLQNl6c@public.gmane.org, jkosina-AlSwsSmVLrQ@public.gmane.org, luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, daniel-cYrQPVfZooxQFI55V6+gNQ@public.gmane.org, dh.herrmann-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, tixxdz-Umm1ozX2/EEdnm+yROfE0A@public.gmane.org, "Michael Kerrisk (man-pages)" , Linus Torvalds , Daniel Mack List-Id: linux-api@vger.kernel.org On Fri, Jan 16, 2015 at 11:16:05AM -0800, Greg Kroah-Hartman wrote: > From: Daniel Mack > > kdbus is a system for low-latency, low-overhead, easy to use > interprocess communication (IPC). > > The interface to all functions in this driver is implemented via ioctls > on files exposed through a filesystem called 'kdbusfs'. The default > mount point of kdbusfs is /sys/fs/kdbus. Pardon my ignorance, but we've always been told that adding new ioctl()s to the kernel is a very big no-no. But given the seniority of the folks stewarding this kdbus effort, there must be a good rationale ;-) So, can the rationale behind introducing new ioctl()s be further explained? It would be even better if it's included in the documentation patch itself. Thanks, Darwish