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-rw-r--r--include/linux/pagewalk.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/pagewalk.h b/include/linux/pagewalk.h
index f3fafb731ffd..37dc0208862d 100644
--- a/include/linux/pagewalk.h
+++ b/include/linux/pagewalk.h
@@ -27,6 +27,8 @@ struct mm_walk;
* "do page table walk over the current vma", returning
* a negative value means "abort current page table walk
* right now" and returning 1 means "skip the current vma"
+ * Note that this callback is not called when the caller
+ * passes in a single VMA as for walk_page_vma().
* @pre_vma: if set, called before starting walk on a non-null vma.
* @post_vma: if set, called after a walk on a non-null vma, provided
* that @pre_vma and the vma walk succeeded.