Fix TLB gather virtual address range invalidation corner cases

[deliverable/linux.git] / arch / arm / include / asm / tlb.h

diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
index 46e7cfb3e7219d2ac4db9013d5dc673c155167ed..0baf7f0d939484264b089c772112657cb9f15c75 100644 (file)
--- a/arch/arm/include/asm/tlb.h
+++ b/arch/arm/include/asm/tlb.h
@@ -43,6 +43,7 @@ struct mmu_gather {
        struct mm_struct        *mm;
        unsigned int            fullmm;
        struct vm_area_struct   *vma;
+       unsigned long           start, end;
        unsigned long           range_start;
        unsigned long           range_end;
        unsigned int            nr;
@@ -107,10 +108,12 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
 }
 
 static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned int fullmm)
+tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
 {
        tlb->mm = mm;
-       tlb->fullmm = fullmm;
+       tlb->fullmm = !(start | (end+1));
+       tlb->start = start;
+       tlb->end = end;
        tlb->vma = NULL;
        tlb->max = ARRAY_SIZE(tlb->local);
        tlb->pages = tlb->local;