patch-2.3.23 linux/include/linux/bigmem.h

• Lines: 49
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.22/linux/include/linux/bigmem.h
• Orig date: Tue Aug 31 17:29:14 1999

diff -u --recursive --new-file v2.3.22/linux/include/linux/bigmem.h linux/include/linux/bigmem.h
@@ -1,48 +0,0 @@
-#ifndef _LINUX_BIGMEM_H
-#define _LINUX_BIGMEM_H
-
-#include <linux/config.h>
-
-#ifdef CONFIG_BIGMEM
-
-#include <asm/bigmem.h>
-
-/* declarations for linux/mm/bigmem.c */
-extern unsigned long bigmem_mapnr;
-extern int nr_free_bigpages;
-
-extern struct page * prepare_bigmem_swapout(struct page *);
-extern struct page * replace_with_bigmem(struct page *);
-
-#else /* CONFIG_BIGMEM */
-
-#define prepare_bigmem_swapout(page) page
-#define replace_with_bigmem(page) page
-#define kmap(kaddr, type) kaddr
-#define kunmap(vaddr, type) do { } while (0)
-#define nr_free_bigpages 0
-
-#endif /* CONFIG_BIGMEM */
-
-/* when CONFIG_BIGMEM is not set these will be plain clear/copy_page */
-extern inline void clear_bigpage(unsigned long kaddr)
-{
-	unsigned long vaddr;
-
-	vaddr = kmap(kaddr, KM_WRITE);
-	clear_page(vaddr);
-	kunmap(vaddr, KM_WRITE);
-}
-
-extern inline void copy_bigpage(unsigned long to, unsigned long from)
-{
-	unsigned long vfrom, vto;
-
-	vfrom = kmap(from, KM_READ);
-	vto = kmap(to, KM_WRITE);
-	copy_page(vto, vfrom);
-	kunmap(vfrom, KM_READ);
-	kunmap(vto, KM_WRITE);
-}
-
-#endif /* _LINUX_BIGMEM_H */