On Fri, Aug 25, 2006 at 08:37:07PM +0100, David Howells wrote:
> From: David Howells <[email protected]>
>
> Move the bounce buffer code from mm/highmem.c to mm/bounce.c so that it can be
> more easily disabled when the block layer is disabled.
>
> !!!NOTE!!! There may be a bug in this code: Should init_emergency_pool() be
> contingent on CONFIG_HIGHMEM?
>
> Signed-Off-By: David Howells <[email protected]>
> ---
>
> mm/Makefile | 4 +
> mm/bounce.c | 302 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> mm/highmem.c | 281 ------------------------------------------------------
> 3 files changed, 305 insertions(+), 282 deletions(-)
>
> diff --git a/mm/Makefile b/mm/Makefile
> index 9dd824c..63637f0 100644
> --- a/mm/Makefile
> +++ b/mm/Makefile
> @@ -12,6 +12,9 @@ obj-y := bootmem.o filemap.o mempool.o
> readahead.o swap.o truncate.o vmscan.o \
> prio_tree.o util.o mmzone.o vmstat.o $(mmu-y)
>
> +ifeq ($(CONFIG_MMU),y)
> +obj-y += bounce.o
> +endif
CONFIG_MMU is a bool so you can do this much more elegant:
obj-$(CONFIG_MMU) += bounce.o
Sam
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