From 69dbb2f79a5626741a24770719406a4edb2cb84f Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 26 May 2011 09:48:31 +0200 Subject: [S390] mm: add ZONE_DMA to 31-bit config again Add ZONE_DMA to 31-bit config again. The performance gain is minimal and hardly anybody cares anymore about a 31-bit kernel. So add ZONE_DMA again to help with SLAB_CACHE_DMA removal for !CONFIG_ZONE_DMA configurations. Acked-by: David Rientjes Signed-off-by: Heiko Carstens --- arch/s390/Kconfig | 2 +- arch/s390/appldata/appldata_mem.c | 2 -- arch/s390/mm/init.c | 2 -- 3 files changed, 1 insertion(+), 5 deletions(-) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index ff2d2371b2e9..9fab2aa9c2c8 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -2,7 +2,7 @@ config MMU def_bool y config ZONE_DMA - def_bool y if 64BIT + def_bool y config LOCKDEP_SUPPORT def_bool y diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c index e43fe7537031..f7d3dc555bdb 100644 --- a/arch/s390/appldata/appldata_mem.c +++ b/arch/s390/appldata/appldata_mem.c @@ -92,9 +92,7 @@ static void appldata_get_mem_data(void *data) mem_data->pswpin = ev[PSWPIN]; mem_data->pswpout = ev[PSWPOUT]; mem_data->pgalloc = ev[PGALLOC_NORMAL]; -#ifdef CONFIG_ZONE_DMA mem_data->pgalloc += ev[PGALLOC_DMA]; -#endif mem_data->pgfault = ev[PGFAULT]; mem_data->pgmajfault = ev[PGMAJFAULT]; diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index dfefc2171691..59b663109d90 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -119,9 +119,7 @@ void __init paging_init(void) sparse_memory_present_with_active_regions(MAX_NUMNODES); sparse_init(); memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); -#ifdef CONFIG_ZONE_DMA max_zone_pfns[ZONE_DMA] = PFN_DOWN(MAX_DMA_ADDRESS); -#endif max_zone_pfns[ZONE_NORMAL] = max_low_pfn; free_area_init_nodes(max_zone_pfns); fault_init(); -- cgit v1.2.3-58-ga151