Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Further fixes for the removal of 4level-fixup hack from ppc32
  [POWERPC] EEH: log all PCI-X and PCI-E AER registers
  [POWERPC] EEH: capture and log pci state on error
  [POWERPC] EEH: Split up long error msg
  [POWERPC] EEH: log error only after driver notification.
  [POWERPC] fsl_soc: Make mac_addr const in fs_enet_of_init().
  [POWERPC] Don't use SLAB/SLUB for PTE pages
  [POWERPC] Spufs support for 64K LS mappings on 4K kernels
  [POWERPC] Add ability to 4K kernel to hash in 64K pages
  [POWERPC] Introduce address space "slices"
  [POWERPC] Small fixes & cleanups in segment page size demotion
  [POWERPC] iSeries: Make HVC_ISERIES the default
  [POWERPC] iSeries: suppress build warning in lparmap.c
  [POWERPC] Mark pages that don't exist as nosave
  [POWERPC] swsusp: Introduce register_nosave_region_late

1 files changed, 13 insertions, 18 deletions

diff --git a/include/asm-powerpc/pgalloc-64.h b/include/asm-powerpc/pgalloc-64.h
index 30b50cf56e2c..d9a3a8ca58a1 100644
--- a/include/asm-powerpc/pgalloc-64.h
+++ b/include/asm-powerpc/pgalloc-64.h
@@ -14,18 +14,11 @@
 
 extern struct kmem_cache *pgtable_cache[];
 
-#ifdef CONFIG_PPC_64K_PAGES
-#define PTE_CACHE_NUM	0
-#define PMD_CACHE_NUM	1
-#define PGD_CACHE_NUM	2
-#define HUGEPTE_CACHE_NUM 3
-#else
-#define PTE_CACHE_NUM	0
-#define PMD_CACHE_NUM	1
-#define PUD_CACHE_NUM	1
-#define PGD_CACHE_NUM	0
-#define HUGEPTE_CACHE_NUM 2
-#endif
+#define PGD_CACHE_NUM		0
+#define PUD_CACHE_NUM		1
+#define PMD_CACHE_NUM		1
+#define HUGEPTE_CACHE_NUM	2
+#define PTE_NONCACHE_NUM	3  /* from GFP rather than kmem_cache */
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
@@ -91,8 +84,7 @@ static inline void pmd_free(pmd_t *pmd)
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 					  unsigned long address)
 {
-	return kmem_cache_alloc(pgtable_cache[PTE_CACHE_NUM],
-				GFP_KERNEL|__GFP_REPEAT);
+        return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
 }
 
 static inline struct page *pte_alloc_one(struct mm_struct *mm,
@@ -103,12 +95,12 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 
 static inline void pte_free_kernel(pte_t *pte)
 {
-	kmem_cache_free(pgtable_cache[PTE_CACHE_NUM], pte);
+	free_page((unsigned long)pte);
 }
 
 static inline void pte_free(struct page *ptepage)
 {
-	pte_free_kernel(page_address(ptepage));
+	__free_page(ptepage);
 }
 
 #define PGF_CACHENUM_MASK	0x3
@@ -130,14 +122,17 @@ static inline void pgtable_free(pgtable_free_t pgf)
 	void *p = (void *)(pgf.val & ~PGF_CACHENUM_MASK);
 	int cachenum = pgf.val & PGF_CACHENUM_MASK;
 
-	kmem_cache_free(pgtable_cache[cachenum], p);
+	if (cachenum == PTE_NONCACHE_NUM)
+		free_page((unsigned long)p);
+	else
+		kmem_cache_free(pgtable_cache[cachenum], p);
 }
 
 extern void pgtable_free_tlb(struct mmu_gather *tlb, pgtable_free_t pgf);
 
 #define __pte_free_tlb(tlb, ptepage)	\
 	pgtable_free_tlb(tlb, pgtable_free_cache(page_address(ptepage), \
-		PTE_CACHE_NUM, PTE_TABLE_SIZE-1))
+		PTE_NONCACHE_NUM, PTE_TABLE_SIZE-1))
 #define __pmd_free_tlb(tlb, pmd) 	\
 	pgtable_free_tlb(tlb, pgtable_free_cache(pmd, \
 		PMD_CACHE_NUM, PMD_TABLE_SIZE-1))