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-rw-r--r--arch/metag/mm/init.c6
-rw-r--r--arch/x86/mm/highmem_32.c6
-rw-r--r--include/linux/bootmem.h1
-rw-r--r--mm/bootmem.c32
-rw-r--r--mm/nobootmem.c30
-rw-r--r--mm/page_alloc.c1
6 files changed, 48 insertions, 28 deletions
diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c
index 5e2238dd72e0..d7595f58fad5 100644
--- a/arch/metag/mm/init.c
+++ b/arch/metag/mm/init.c
@@ -380,6 +380,12 @@ void __init mem_init(void)
#ifdef CONFIG_HIGHMEM
unsigned long tmp;
+
+ /*
+ * Explicitly reset zone->managed_pages because highmem pages are
+ * freed before calling free_all_bootmem_node();
+ */
+ reset_all_zones_managed_pages();
for (tmp = highstart_pfn; tmp < highend_pfn; tmp++)
free_highmem_page(pfn_to_page(tmp));
num_physpages += totalhigh_pages;
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 252b8f5489ba..4500142bc4aa 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -1,6 +1,7 @@
#include <linux/highmem.h>
#include <linux/module.h>
#include <linux/swap.h> /* for totalram_pages */
+#include <linux/bootmem.h>
void *kmap(struct page *page)
{
@@ -121,6 +122,11 @@ void __init set_highmem_pages_init(void)
struct zone *zone;
int nid;
+ /*
+ * Explicitly reset zone->managed_pages because set_highmem_pages_init()
+ * is invoked before free_all_bootmem()
+ */
+ reset_all_zones_managed_pages();
for_each_zone(zone) {
unsigned long zone_start_pfn, zone_end_pfn;
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 5f0b0e1f7c08..0e48c3221d82 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -46,6 +46,7 @@ extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
extern unsigned long free_all_bootmem(void);
+extern void reset_all_zones_managed_pages(void);
extern void free_bootmem_node(pg_data_t *pgdat,
unsigned long addr,
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 2b0bcb019ec2..eb792323187b 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -241,20 +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;
+}
+
+void __init reset_all_zones_managed_pages(void)
+{
+ struct pglist_data *pgdat;
+
+ for_each_online_pgdat(pgdat)
+ reset_node_managed_pages(pgdat);
+ reset_managed_pages_done = 1;
}
/**
@@ -266,7 +272,7 @@ static void reset_node_lowmem_managed_pages(pg_data_t *pgdat)
unsigned long __init free_all_bootmem_node(pg_data_t *pgdat)
{
register_page_bootmem_info_node(pgdat);
- reset_node_lowmem_managed_pages(pgdat);
+ reset_node_managed_pages(pgdat);
return free_all_bootmem_core(pgdat->bdata);
}
@@ -279,10 +285,8 @@ 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);
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index bdd3fa2fc73b..0ae8d91365af 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -137,20 +137,25 @@ static unsigned long __init free_low_memory_core_early(void)
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;
+}
+
+void __init reset_all_zones_managed_pages(void)
+{
+ struct pglist_data *pgdat;
+
+ for_each_online_pgdat(pgdat)
+ reset_node_managed_pages(pgdat);
+ reset_managed_pages_done = 1;
}
/**
@@ -160,10 +165,7 @@ static void reset_node_lowmem_managed_pages(pg_data_t *pgdat)
*/
unsigned long __init free_all_bootmem(void)
{
- struct pglist_data *pgdat;
-
- for_each_online_pgdat(pgdat)
- reset_node_lowmem_managed_pages(pgdat);
+ reset_all_zones_managed_pages();
/*
* We need to use MAX_NUMNODES instead of NODE_DATA(0)->node_id
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f22542f6dc12..22438eba00b6 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5232,6 +5232,7 @@ void free_highmem_page(struct page *page)
{
__free_reserved_page(page);
totalram_pages++;
+ page_zone(page)->managed_pages++;
totalhigh_pages++;
}
#endif