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[PATCH] reduce MAX_NR_ZONES: move HIGHMEM counters into highmem.c/.h

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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

[[email protected]: build fix]
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Yoichi Yuasa <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2006-09-25 23:31:11 -07:00 • committed by Linus Torvalds
commit c1f60a5a41
7 changed files with 20 additions and 16 deletions
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13
mm/highmem.c
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@ -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);