score does not need multiple zero pages, because it does not
suffer from cache aliasing problems, so simplify that code.
Also make some functions static and include the appropriate
header files.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
#include <linux/pagemap.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/pagemap.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
-#include <asm-generic/sections.h>
+#include <linux/initrd.h>
+#include <asm/sections.h>
#include <asm/tlb.h>
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
#include <asm/tlb.h>
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-/*
- * We have up to 8 empty zeroed pages so we can map one of the right colour
- * when needed.
- */
-unsigned long zero_page_mask;
unsigned long empty_zero_page;
EXPORT_SYMBOL_GPL(empty_zero_page);
static struct kcore_list kcore_mem, kcore_vmalloc;
unsigned long empty_zero_page;
EXPORT_SYMBOL_GPL(empty_zero_page);
static struct kcore_list kcore_mem, kcore_vmalloc;
-unsigned long setup_zero_pages(void)
+static unsigned long setup_zero_page(void)
- unsigned int order = 0;
- unsigned long size;
- empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
+ empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, 0);
if (!empty_zero_page)
panic("Oh boy, that early out of memory?");
page = virt_to_page((void *) empty_zero_page);
if (!empty_zero_page)
panic("Oh boy, that early out of memory?");
page = virt_to_page((void *) empty_zero_page);
- split_page(page, order);
- while (page < virt_to_page((void *) (empty_zero_page +
- (PAGE_SIZE << order)))) {
- SetPageReserved(page);
- page++;
- }
-
- size = PAGE_SIZE << order;
- zero_page_mask = (size - 1) & PAGE_MASK;
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
max_mapnr = max_low_pfn;
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
totalram_pages += free_all_bootmem();
max_mapnr = max_low_pfn;
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
totalram_pages += free_all_bootmem();
- totalram_pages -= setup_zero_pages(); /* Setup zeroed pages. */
+ totalram_pages -= setup_zero_page(); /* Setup zeroed pages. */
reservedpages = 0;
for (tmp = 0; tmp < max_low_pfn; tmp++)
reservedpages = 0;
for (tmp = 0; tmp < max_low_pfn; tmp++)
}
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
}
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
-void free_init_pages(const char *what, unsigned long begin, unsigned long end)
+static void free_init_pages(const char *what, unsigned long begin, unsigned long end)
void free_initrd_mem(unsigned long start, unsigned long end)
{
free_init_pages("initrd memory",
void free_initrd_mem(unsigned long start, unsigned long end)
{
free_init_pages("initrd memory",
- virt_to_phys((void *) start),
- virt_to_phys((void *) end));
+ virt_to_phys((void *) start),
+ virt_to_phys((void *) end));