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-rw-r--r--include/linux/mmu_notifier.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 2cf1c3c807f6..130831718e95 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -156,7 +156,8 @@ struct mmu_notifier_ops {
* shared page-tables, it not necessary to implement the
* invalidate_range_start()/end() notifiers, as
* invalidate_range() alread catches the points in time when an
- * external TLB range needs to be flushed.
+ * external TLB range needs to be flushed. For more in depth
+ * discussion on this see Documentation/vm/mmu_notifier.txt
*
* The invalidate_range() function is called under the ptl
* spin-lock and not allowed to sleep.