mm: migrate: Account a transhuge page properly when rate limiting

[deliverable/linux.git] / include / linux / scatterlist.h

diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 7b600da9a635027393368715a43e0a2a44827db0..4bd6c06eb28edb13cc8a47698fd2b1df94d72f65 100644 (file)
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -201,6 +201,7 @@ static inline void *sg_virt(struct scatterlist *sg)
        return page_address(sg_page(sg)) + sg->offset;
 }
 
+int sg_nents(struct scatterlist *sg);
 struct scatterlist *sg_next(struct scatterlist *);
 struct scatterlist *sg_last(struct scatterlist *s, unsigned int);
 void sg_init_table(struct scatterlist *, unsigned int);