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-rw-r--r--mm/memory.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 2466d1250231..91f69459d3e8 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -206,6 +206,8 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, bool fullmm)
tlb->mm = mm;
tlb->fullmm = fullmm;
+ tlb->start = -1UL;
+ tlb->end = 0;
tlb->need_flush = 0;
tlb->fast_mode = (num_possible_cpus() == 1);
tlb->local.next = NULL;
@@ -248,6 +250,8 @@ void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long e
{
struct mmu_gather_batch *batch, *next;
+ tlb->start = start;
+ tlb->end = end;
tlb_flush_mmu(tlb);
/* keep the page table cache within bounds */
@@ -1204,6 +1208,11 @@ again:
*/
if (force_flush) {
force_flush = 0;
+
+#ifdef HAVE_GENERIC_MMU_GATHER
+ tlb->start = addr;
+ tlb->end = end;
+#endif
tlb_flush_mmu(tlb);
if (addr != end)
goto again;
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