From c1f60a5a419cc60aff27daffb150f5a3a3a79ef4 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Mon, 25 Sep 2006 23:31:11 -0700 Subject: [PATCH] reduce MAX_NR_ZONES: move HIGHMEM counters into highmem.c/.h Move totalhigh_pages and nr_free_highpages() into highmem.c/.h Move the totalhigh_pages definition into highmem.c/.h. Move the nr_free_highpages function into highmem.c [yoichi_yuasa@tripeaks.co.jp: build fix] Signed-off-by: Christoph Lameter Signed-off-by: Yoichi Yuasa Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/highmem.c | 13 +++++++++++++ mm/page_alloc.c | 15 --------------- mm/shmem.c | 1 + 3 files changed, 14 insertions(+), 15 deletions(-) (limited to 'mm') diff --git a/mm/highmem.c b/mm/highmem.c index 9b2a5403c447..ee5519b176ee 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -46,6 +46,19 @@ static void *mempool_alloc_pages_isa(gfp_t gfp_mask, void *data) */ #ifdef CONFIG_HIGHMEM +unsigned long totalhigh_pages __read_mostly; + +unsigned int nr_free_highpages (void) +{ + pg_data_t *pgdat; + unsigned int pages = 0; + + for_each_online_pgdat(pgdat) + pages += pgdat->node_zones[ZONE_HIGHMEM].free_pages; + + return pages; +} + static int pkmap_count[LAST_PKMAP]; static unsigned int last_pkmap_nr; static __cacheline_aligned_in_smp DEFINE_SPINLOCK(kmap_lock); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e26491cb5a27..5cde54695cfb 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -51,7 +51,6 @@ EXPORT_SYMBOL(node_online_map); nodemask_t node_possible_map __read_mostly = NODE_MASK_ALL; EXPORT_SYMBOL(node_possible_map); unsigned long totalram_pages __read_mostly; -unsigned long totalhigh_pages __read_mostly; unsigned long totalreserve_pages __read_mostly; long nr_swap_pages; int percpu_pagelist_fraction; @@ -1185,20 +1184,6 @@ unsigned int nr_free_pagecache_pages(void) { return nr_free_zone_pages(gfp_zone(GFP_HIGHUSER)); } - -#ifdef CONFIG_HIGHMEM -unsigned int nr_free_highpages (void) -{ - pg_data_t *pgdat; - unsigned int pages = 0; - - for_each_online_pgdat(pgdat) - pages += pgdat->node_zones[ZONE_HIGHMEM].free_pages; - - return pages; -} -#endif - #ifdef CONFIG_NUMA static void show_node(struct zone *zone) { diff --git a/mm/shmem.c b/mm/shmem.c index db21c51531ca..8631be45b40d 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -45,6 +45,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3