cma_release() now is a non-blocking function, so there is no more need
to drop hugetlb_lock to call it.

Signed-off-by: Roman Gushchin <g...@fb.com>
---
 mm/hugetlb.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index fe76f8fd5a73..c8c892b1cabc 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1312,14 +1312,8 @@ static void update_and_free_page(struct hstate *h, 
struct page *page)
        set_compound_page_dtor(page, NULL_COMPOUND_DTOR);
        set_page_refcounted(page);
        if (hstate_is_gigantic(h)) {
-               /*
-                * Temporarily drop the hugetlb_lock, because
-                * we might block in free_gigantic_page().
-                */
-               spin_unlock(&hugetlb_lock);
                destroy_compound_gigantic_page(page, huge_page_order(h));
                free_gigantic_page(page, huge_page_order(h));
-               spin_lock(&hugetlb_lock);
        } else {
                __free_pages(page, huge_page_order(h));
        }
-- 
2.26.2

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