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Subjectremove MARK_USED() macros
MARK_USED() only has two call sites within page_alloc.c and does not
effectively serve to clarify the code. This patch removes it in favor
of open-coding the __change_bit() at its call sites.


Against 2.5.19.


Cheers,
Bill


===== mm/page_alloc.c 1.69 vs edited =====
--- 1.69/mm/page_alloc.c Sun Jun 2 15:26:30 2002
+++ edited/mm/page_alloc.c Sun Jun 2 15:28:11 2002
@@ -153,9 +153,6 @@
current->nr_local_pages++;
}

-#define MARK_USED(index, order, area) \
- __change_bit((index) >> (1+(order)), (area)->map)
-
static inline struct page * expand (zone_t *zone, struct page *page,
unsigned long index, int low, int high, free_area_t * area)
{
@@ -167,7 +164,7 @@
high--;
size >>= 1;
list_add(&(page)->list, &(area)->free_list);
- MARK_USED(index, high, area);
+ __change_bit(index >> (1+high), area->map);
index += size;
page += size;
}
@@ -197,7 +194,7 @@
list_del(curr);
index = page - zone->zone_mem_map;
if (curr_order != MAX_ORDER-1)
- MARK_USED(index, curr_order, area);
+ __change_bit(index >> (1+curr_order), area->map);
zone->free_pages -= 1UL << order;

page = expand(zone, page, index, order, curr_order, area);
-
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