[S390] Convert to SPARSEMEM & SPARSEMEM_VMEMMAP

Convert s390 to SPARSEMEM and SPARSEMEM_VMEMMAP. We do a select
of SPARSEMEM_VMEMMAP since it is configurable. This is because
SPARSEMEM without SPARSEMEM_VMEMMAP gives us a hell of broken
include dependencies that I don't want to fix.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index fd336f2e2a7a..c7f4f8e3e297 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -129,7 +129,7 @@ extern char empty_zero_page[PAGE_SIZE];
 #define VMEM_MAX_PAGES  ((VMEM_MAP_END - VMALLOC_END) / sizeof(struct page))
 #define VMEM_MAX_PFN    min(VMALLOC_START >> PAGE_SHIFT, VMEM_MAX_PAGES)
 #define VMEM_MAX_PHYS   ((VMEM_MAX_PFN << PAGE_SHIFT) & ~((16 << 20) - 1))
-#define VMEM_MAP        ((struct page *) VMALLOC_END)
+#define vmemmap         ((struct page *) VMALLOC_END)
 
 /*
  * A 31 bit pagetable entry of S390 has following format:
@@ -1075,8 +1075,8 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
 
 #define kern_addr_valid(addr)   (1)
 
-extern int add_shared_memory(unsigned long start, unsigned long size);
-extern int remove_shared_memory(unsigned long start, unsigned long size);
+extern int vmem_add_mapping(unsigned long start, unsigned long size);
+extern int vmem_remove_mapping(unsigned long start, unsigned long size);
 extern int s390_enable_sie(void);
 
 /*
@@ -1084,9 +1084,6 @@ extern int s390_enable_sie(void);
  */
 #define pgtable_cache_init()    do { } while (0)
 
-#define __HAVE_ARCH_MEMMAP_INIT
-extern void memmap_init(unsigned long, int, unsigned long, unsigned long);
-
 #include <asm-generic/pgtable.h>
 
 #endif /* _S390_PAGE_H */