1 files changed, 7 insertions, 131 deletions

diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index f4cc9ffc449e..fcf1e23f2e0a 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -21,139 +21,28 @@
 #include <asm/cache.h>
 #include <asm/pgtable.h>
 
-#define PGDIR_ORDER	0
-
-/*
- * This is handled very differently on MicroBlaze since out page tables
- * are all 0's and I want to be able to use these zero'd pages elsewhere
- * as well - it gives us quite a speedup.
- * -- Cort
- */
-extern struct pgtable_cache_struct {
-	unsigned long *pgd_cache;
-	unsigned long *pte_cache;
-	unsigned long pgtable_cache_sz;
-} quicklists;
-
-#define pgd_quicklist		(quicklists.pgd_cache)
-#define pmd_quicklist		((unsigned long *)0)
-#define pte_quicklist		(quicklists.pte_cache)
-#define pgtable_cache_size	(quicklists.pgtable_cache_sz)
-
-extern unsigned long *zero_cache; /* head linked list of pre-zero'd pages */
-extern atomic_t zero_sz; /* # currently pre-zero'd pages */
-extern atomic_t zeropage_hits; /* # zero'd pages request that we've done */
-extern atomic_t zeropage_calls; /* # zero'd pages request that've been made */
-extern atomic_t zerototal; /* # pages zero'd over time */
-
-#define zero_quicklist		(zero_cache)
-#define zero_cache_sz	 	(zero_sz)
-#define zero_cache_calls	(zeropage_calls)
-#define zero_cache_hits		(zeropage_hits)
-#define zero_cache_total	(zerototal)
-
-/*
- * return a pre-zero'd page from the list,
- * return NULL if none available -- Cort
- */
-extern unsigned long get_zero_page_fast(void);
+#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL
+#include <asm-generic/pgalloc.h>
 
 extern void __bad_pte(pmd_t *pmd);
 
-static inline pgd_t *get_pgd_slow(void)
+static inline pgd_t *get_pgd(void)
 {
-	pgd_t *ret;
-
-	ret = (pgd_t *)__get_free_pages(GFP_KERNEL, PGDIR_ORDER);
-	if (ret != NULL)
-		clear_page(ret);
-	return ret;
+	return (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0);
 }
 
-static inline pgd_t *get_pgd_fast(void)
-{
-	unsigned long *ret;
-
-	ret = pgd_quicklist;
-	if (ret != NULL) {
-		pgd_quicklist = (unsigned long *)(*ret);
-		ret[0] = 0;
-		pgtable_cache_size--;
-	} else
-		ret = (unsigned long *)get_pgd_slow();
-	return (pgd_t *)ret;
-}
-
-static inline void free_pgd_fast(pgd_t *pgd)
-{
-	*(unsigned long **)pgd = pgd_quicklist;
-	pgd_quicklist = (unsigned long *) pgd;
-	pgtable_cache_size++;
-}
-
-static inline void free_pgd_slow(pgd_t *pgd)
+static inline void free_pgd(pgd_t *pgd)
 {
 	free_page((unsigned long)pgd);
 }
 
-#define pgd_free(mm, pgd)        free_pgd_fast(pgd)
-#define pgd_alloc(mm)		get_pgd_fast()
+#define pgd_free(mm, pgd)	free_pgd(pgd)
+#define pgd_alloc(mm)		get_pgd()
 
 #define pmd_pgtable(pmd)	pmd_page(pmd)
 
-/*
- * We don't have any real pmd's, and this code never triggers because
- * the pgd will always be present..
- */
-#define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })
-#define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
-
 extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm)
-{
-	struct page *ptepage;
-
-#ifdef CONFIG_HIGHPTE
-	int flags = GFP_KERNEL | __GFP_HIGHMEM;
-#else
-	int flags = GFP_KERNEL;
-#endif
-
-	ptepage = alloc_pages(flags, 0);
-	if (!ptepage)
-		return NULL;
-	clear_highpage(ptepage);
-	if (!pgtable_page_ctor(ptepage)) {
-		__free_page(ptepage);
-		return NULL;
-	}
-	return ptepage;
-}
-
-static inline void pte_free_fast(pte_t *pte)
-{
-	*(unsigned long **)pte = pte_quicklist;
-	pte_quicklist = (unsigned long *) pte;
-	pgtable_cache_size++;
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
-	free_page((unsigned long)pte);
-}
-
-static inline void pte_free_slow(struct page *ptepage)
-{
-	__free_page(ptepage);
-}
-
-static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
-{
-	pgtable_page_dtor(ptepage);
-	__free_page(ptepage);
-}
-
 #define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, (pte))
 
 #define pmd_populate(mm, pmd, pte) \
@@ -162,19 +51,6 @@ static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
 #define pmd_populate_kernel(mm, pmd, pte) \
 		(pmd_val(*(pmd)) = (unsigned long) (pte))
 
-/*
- * We don't have any real pmd's, and this code never triggers because
- * the pgd will always be present..
- */
-#define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
-#define pmd_free(mm, x)			do { } while (0)
-#define __pmd_free_tlb(tlb, x, addr)	pmd_free((tlb)->mm, x)
-#define pgd_populate(mm, pmd, pte)	BUG()
-
-extern int do_check_pgt_cache(int, int);
-
 #endif /* CONFIG_MMU */
 
-#define check_pgt_cache()		do { } while (0)
-
 #endif /* _ASM_MICROBLAZE_PGALLOC_H */