From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Woodhouse Subject: Re: [PATCH 04/14] Pramfs: Mounting as root filesystem Date: Sun, 14 Jun 2009 10:07:25 +0100 Message-ID: <1244970445.3468.2732.camel@macbook.infradead.org> References: <4A33A7D7.3040008@gmail.com> <200906140104.43463.arnd@arndb.de> <4A34B2FD.20701@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4A34B2FD.20701@gmail.com> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Marco Cc: Arnd Bergmann , Linux FS Devel , Linux Embedded , Linux Kernel , Daniel Walker On Sun, 2009-06-14 at 10:21 +0200, Marco wrote: > > Mmm...MEM_MAJOR and RAMDISK_MAJOR have the same value and pramfs works > in memory. We could simply use /dev/null (there was an error in the > submitted kconfig description, my intention was to use /dev/mem). In > that case I can use UNNAMED_MAJOR. PRAMFS root option is not enabled > if it's already enabled the NFS one. What do you think? Why use a major number at all? See how we handle mtd and ubi devices in prepare_namespace() -- can't you do something similar? -- David Woodhouse Open Source Technology Centre David.Woodhouse@intel.com Intel Corporation