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-rw-r--r--mm/bootmem.c39
1 files changed, 16 insertions, 23 deletions
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 2b0bcb019ec2..6ab7744e692e 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -241,33 +241,26 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
return count;
}
-static void reset_node_lowmem_managed_pages(pg_data_t *pgdat)
+static int reset_managed_pages_done __initdata;
+
+static inline void __init reset_node_managed_pages(pg_data_t *pgdat)
{
struct zone *z;
- /*
- * In free_area_init_core(), highmem zone's managed_pages is set to
- * present_pages, and bootmem allocator doesn't allocate from highmem
- * zones. So there's no need to recalculate managed_pages because all
- * highmem pages will be managed by the buddy system. Here highmem
- * zone also includes highmem movable zone.
- */
+ if (reset_managed_pages_done)
+ return;
+
for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++)
- if (!is_highmem(z))
- z->managed_pages = 0;
+ z->managed_pages = 0;
}
-/**
- * free_all_bootmem_node - release a node's free pages to the buddy allocator
- * @pgdat: node to be released
- *
- * Returns the number of pages actually released.
- */
-unsigned long __init free_all_bootmem_node(pg_data_t *pgdat)
+void __init reset_all_zones_managed_pages(void)
{
- register_page_bootmem_info_node(pgdat);
- reset_node_lowmem_managed_pages(pgdat);
- return free_all_bootmem_core(pgdat->bdata);
+ struct pglist_data *pgdat;
+
+ for_each_online_pgdat(pgdat)
+ reset_node_managed_pages(pgdat);
+ reset_managed_pages_done = 1;
}
/**
@@ -279,14 +272,14 @@ unsigned long __init free_all_bootmem(void)
{
unsigned long total_pages = 0;
bootmem_data_t *bdata;
- struct pglist_data *pgdat;
- for_each_online_pgdat(pgdat)
- reset_node_lowmem_managed_pages(pgdat);
+ reset_all_zones_managed_pages();
list_for_each_entry(bdata, &bdata_list, list)
total_pages += free_all_bootmem_core(bdata);
+ totalram_pages += total_pages;
+
return total_pages;
}