fat: split include/msdos_fs.h

[linux-2.6-omap-h63xx.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8f155e9e43db827efbe04d6c097dc3ab9776a6b7..54069e64e3a8a4b0c9a0450aba08b7f0fa21c5f9 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -44,7 +44,7 @@
 #include <linux/backing-dev.h>
 #include <linux/fault-inject.h>
 #include <linux/page-isolation.h>
-#include <linux/memcontrol.h>
+#include <linux/page_cgroup.h>
 #include <linux/debugobjects.h>
 
 #include <asm/tlbflush.h>
@@ -223,17 +223,12 @@ static inline int bad_range(struct zone *zone, struct page *page)
 
 static void bad_page(struct page *page)
 {
-       void *pc = page_get_page_cgroup(page);
-
        printk(KERN_EMERG "Bad page state in process '%s'\n" KERN_EMERG
                "page:%p flags:0x%0*lx mapping:%p mapcount:%d count:%d\n",
                current->comm, page, (int)(2*sizeof(unsigned long)),
                (unsigned long)page->flags, page->mapping,
                page_mapcount(page), page_count(page));
-       if (pc) {
-               printk(KERN_EMERG "cgroup:%p\n", pc);
-               page_reset_bad_cgroup(page);
-       }
+
        printk(KERN_EMERG "Trying to fix it up, but a reboot is needed\n"
                KERN_EMERG "Backtrace:\n");
        dump_stack();
@@ -265,6 +260,23 @@ static void free_compound_page(struct page *page)
 }
 
 void prep_compound_page(struct page *page, unsigned long order)
+{
+       int i;
+       int nr_pages = 1 << order;
+
+       set_compound_page_dtor(page, free_compound_page);
+       set_compound_order(page, order);
+       __SetPageHead(page);
+       for (i = 1; i < nr_pages; i++) {
+               struct page *p = page + i;
+
+               __SetPageTail(p);
+               p->first_page = page;
+       }
+}
+
+#ifdef CONFIG_HUGETLBFS
+void prep_compound_gigantic_page(struct page *page, unsigned long order)
 {
        int i;
        int nr_pages = 1 << order;
@@ -273,19 +285,17 @@ void prep_compound_page(struct page *page, unsigned long order)
        set_compound_page_dtor(page, free_compound_page);
        set_compound_order(page, order);
        __SetPageHead(page);
-       for (i = 1; i < nr_pages; i++, p++) {
-               if (unlikely((i & (MAX_ORDER_NR_PAGES - 1)) == 0))
-                       p = pfn_to_page(page_to_pfn(page) + i);
+       for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) {
                __SetPageTail(p);
                p->first_page = page;
        }
 }
+#endif
 
 static void destroy_compound_page(struct page *page, unsigned long order)
 {
        int i;
        int nr_pages = 1 << order;
-       struct page *p = page + 1;
 
        if (unlikely(compound_order(page) != order))
                bad_page(page);
@@ -293,9 +303,8 @@ static void destroy_compound_page(struct page *page, unsigned long order)
        if (unlikely(!PageHead(page)))
                        bad_page(page);
        __ClearPageHead(page);
-       for (i = 1; i < nr_pages; i++, p++) {
-               if (unlikely((i & (MAX_ORDER_NR_PAGES - 1)) == 0))
-                       p = pfn_to_page(page_to_pfn(page) + i);
+       for (i = 1; i < nr_pages; i++) {
+               struct page *p = page + i;
 
                if (unlikely(!PageTail(p) |
                                (p->first_page != page)))
@@ -457,7 +466,6 @@ static inline int free_pages_check(struct page *page)
        free_page_mlock(page);
        if (unlikely(page_mapcount(page) |
                (page->mapping != NULL)  |
-               (page_get_page_cgroup(page) != NULL) |
                (page_count(page) != 0)  |
                (page->flags & PAGE_FLAGS_CHECK_AT_FREE)))
                bad_page(page);
@@ -603,7 +611,6 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags)
 {
        if (unlikely(page_mapcount(page) |
                (page->mapping != NULL)  |
-               (page_get_page_cgroup(page) != NULL) |
                (page_count(page) != 0)  |
                (page->flags & PAGE_FLAGS_CHECK_AT_PREP)))
                bad_page(page);
@@ -3438,6 +3445,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
        pgdat->nr_zones = 0;
        init_waitqueue_head(&pgdat->kswapd_wait);
        pgdat->kswapd_max_order = 0;
+       pgdat_page_cgroup_init(pgdat);
        
        for (j = 0; j < MAX_NR_ZONES; j++) {
                struct zone *zone = pgdat->node_zones + j;
@@ -4242,7 +4250,7 @@ void setup_per_zone_pages_min(void)
        for_each_zone(zone) {
                u64 tmp;
 
-               spin_lock_irqsave(&zone->lru_lock, flags);
+               spin_lock_irqsave(&zone->lock, flags);
                tmp = (u64)pages_min * zone->present_pages;
                do_div(tmp, lowmem_pages);
                if (is_highmem(zone)) {
@@ -4274,7 +4282,7 @@ void setup_per_zone_pages_min(void)
                zone->pages_low   = zone->pages_min + (tmp >> 2);
                zone->pages_high  = zone->pages_min + (tmp >> 1);
                setup_zone_migrate_reserve(zone);
-               spin_unlock_irqrestore(&zone->lru_lock, flags);
+               spin_unlock_irqrestore(&zone->lock, flags);
        }
 
        /* update totalreserve_pages */