tlb: mmu_gather: Introduce tlb_gather_mmu_fullmm()

[linux-2.6-microblaze.git] / mm / mmu_gather.c

diff --git a/mm/mmu_gather.c b/mm/mmu_gather.c
index b0be5a7..5f5e45d 100644 (file)
--- a/mm/mmu_gather.c
+++ b/mm/mmu_gather.c
@@ -261,8 +261,8 @@ void tlb_flush_mmu(struct mmu_gather *tlb)
  * respectively when @mm is without users and we're going to destroy
  * the full address space (exit/execve).
  */
-void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
-                       unsigned long start, unsigned long end)
+static void __tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+                            unsigned long start, unsigned long end)
 {
        tlb->mm = mm;
 
@@ -287,6 +287,18 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
        inc_tlb_flush_pending(tlb->mm);
 }
 
+void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+                   unsigned long start, unsigned long end)
+{
+       WARN_ON(!(start | (end + 1))); /* Use _fullmm() instead */
+       __tlb_gather_mmu(tlb, mm, start, end);
+}
+
+void tlb_gather_mmu_fullmm(struct mmu_gather *tlb, struct mm_struct *mm)
+{
+       __tlb_gather_mmu(tlb, mm, 0, -1);
+}
+
 /**
  * tlb_finish_mmu - finish an mmu_gather structure
  * @tlb: the mmu_gather structure to finish