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From: Ingo Oeser <ioe@axxeo.de>
To: dhowells@redhat.com
Cc: linux-kernel@vger.kernel.org, uclinux-dev@uclinux.org
Subject: Re: [PATCH 4/5] NOMMU: Make POSIX shmem work on ramfs-backed files
Date: Fri, 10 Dec 2004 04:08:33 +0100	[thread overview]
Message-ID: <200412100408.33482.ioe@axxeo.de> (raw)
In-Reply-To: <200412091508.iB9F8wja027564@warthog.cambridge.redhat.com>

You wrote:
> diff -uNrp linux-2.6.10-rc2-mm3-mmcleanup/fs/ramfs/Makefile
> linux-2.6.10-rc2-mm3-shmem/fs/ramfs/Makefile ---
> linux-2.6.10-rc2-mm3-mmcleanup/fs/ramfs/Makefile 2004-06-18
> 13:41:28.000000000 +0100 +++
> linux-2.6.10-rc2-mm3-shmem/fs/ramfs/Makefile 2004-11-26 15:36:07.000000000
> +0000 @@ -4,4 +4,10 @@
>
>  obj-$(CONFIG_RAMFS) += ramfs.o
>
> -ramfs-objs := inode.o
> +ifeq ($(CONFIG_MMU),y)
> +ramfs-objs := file-mmu.o
> +else
> +ramfs-objs := file-nommu.o
> +endif
> +
> +ramfs-objs += inode.o

What about this pattern instead:

file-mmu-y := file-mmu.o
file-mmu-n := file-nommu.o
file-mmu- := file-nommu.o
ramfs-objs += file-mmu-$(CONFIG_MMU)


Requires more work while writing it, but removes the ifeq, 
which should be avoided in makefiles as hell
-- 
Ingo Oeser
axxeo GmbH
Tiestestr. 16, 30171 Hannover
Tel. +49-511-4753706
Fax. +49-511-4753716

mailto:support@axxeo.de


  reply	other threads:[~2004-12-10  3:08 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-09 15:08 [PATCH 1/5] NOMMU: MM cleanups dhowells
2004-12-09 15:08 ` [PATCH 2/5] NOMMU: High-order page management overhaul dhowells
2004-12-09 15:08 ` [PATCH 4/5] NOMMU: Make POSIX shmem work on ramfs-backed files dhowells
2004-12-10  3:08   ` Ingo Oeser [this message]
2004-12-10 14:28     ` David Howells
2004-12-10 17:23       ` Ingo Oeser
2004-12-09 15:08 ` [PATCH 5/5] NOMMU: Futher nommu shared memory support dhowells
2004-12-09 15:08 ` [PATCH 3/5] NOMMU: mmap fixes and extensions dhowells

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