#include <linux/fs.h>
#include <linux/mm.h>
+#include <linux/uaccess.h>
#include <asm/cacheflush.h>
#ifndef ARCH_HAS_FLUSH_ANON_PAGE
-static inline void flush_anon_page(struct page *page, unsigned long vmaddr)
+static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
{
}
#endif
/* declarations for linux/mm/highmem.c */
unsigned int nr_free_highpages(void);
+extern unsigned long totalhigh_pages;
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
+#define totalhigh_pages 0
+
#ifndef ARCH_HAS_KMAP
static inline void *kmap(struct page *page)
{
#define kunmap(page) do { (void) (page); } while (0)
-#define kmap_atomic(page, idx) page_address(page)
-#define kunmap_atomic(addr, idx) do { } while (0)
-#define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn))
+#define kmap_atomic(page, idx) \
+ ({ pagefault_disable(); page_address(page); })
+#define kunmap_atomic(addr, idx) do { pagefault_enable(); } while (0)
+#define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx))
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#endif
kunmap_atomic(kaddr, KM_USER0);
}
-static inline void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr)
+#ifndef __HAVE_ARCH_COPY_USER_HIGHPAGE
+
+static inline void copy_user_highpage(struct page *to, struct page *from,
+ unsigned long vaddr, struct vm_area_struct *vma)
{
char *vfrom, *vto;
smp_wmb();
}
+#endif
+
static inline void copy_highpage(struct page *to, struct page *from)
{
char *vfrom, *vto;