Merge ../linux-2.6-watchdog-mm

[linux-drm-fsl-dcu.git] / arch / powerpc / mm / hugetlbpage.c

diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 266b8b2ceac947071d225e4de981d2229d499fc2..506d89768d455ba8625ed480d4122c7d1c8264c9 100644 (file)
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -153,7 +153,7 @@ static void free_hugepte_range(struct mmu_gather *tlb, hugepd_t *hpdp)
        hpdp->pd = 0;
        tlb->need_flush = 1;
        pgtable_free_tlb(tlb, pgtable_free_cache(hugepte, HUGEPTE_CACHE_NUM,
-                                                HUGEPTE_TABLE_SIZE-1));
+                                                PGF_CACHENUM_MASK));
 }
 
 #ifdef CONFIG_PPC_64K_PAGES
@@ -480,9 +480,6 @@ static int open_high_hpage_areas(struct mm_struct *mm, u16 newareas)
 
        mm->context.high_htlb_areas |= newareas;
 
-       /* update the paca copy of the context struct */
-       get_paca()->context = mm->context;
-
        /* the context change must make it to memory before the flush,
         * so that further SLB misses do the right thing. */
        mb();
@@ -494,11 +491,15 @@ static int open_high_hpage_areas(struct mm_struct *mm, u16 newareas)
        return 0;
 }
 
-int prepare_hugepage_range(unsigned long addr, unsigned long len)
+int prepare_hugepage_range(unsigned long addr, unsigned long len, pgoff_t pgoff)
 {
        int err = 0;
 
-       if ( (addr+len) < addr )
+       if (pgoff & (~HPAGE_MASK >> PAGE_SHIFT))
+               return -EINVAL;
+       if (len & ~HPAGE_MASK)
+               return -EINVAL;
+       if (addr & ~HPAGE_MASK)
                return -EINVAL;
 
        if (addr < 0x100000000UL)