mm/hugetlb: avoid soft lockup in set_max_huge_pages()

[pandora-kernel.git] / mm / hugetlb.c

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index c52095c..390f0ac 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1417,6 +1417,10 @@ static unsigned long set_max_huge_pages(struct hstate *h, unsigned long count,
                 * and reducing the surplus.
                 */
                spin_unlock(&hugetlb_lock);
+
+               /* yield cpu to avoid soft lockup */
+               cond_resched();
+
                ret = alloc_fresh_huge_page(h, nodes_allowed);
                spin_lock(&hugetlb_lock);
                if (!ret)