From a89182c76e54134081cfec6409df06731c5cb98f Mon Sep 17 00:00:00 2001 From: Adam Litke Date: Wed, 22 Aug 2007 14:01:51 -0700 Subject: [PATCH] Fix VM_FAULT flags conversion for hugetlb It seems a simple mistake was made when converting follow_hugetlb_page() over to the VM_FAULT flags bitmasks (in "mm: fault feedback #2", commit 83c54070ee1a2d05c89793884bea1a03f2851ed4). By using the wrong bitmask, hugetlb_fault() failures are not being recognized. This results in an infinite loop whenever follow_hugetlb_page is involved in a failed fault. Signed-off-by: Adam Litke Acked-by: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/hugetlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index d7ca59d66c..de4cf458d6 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -643,7 +643,7 @@ int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, spin_unlock(&mm->page_table_lock); ret = hugetlb_fault(mm, vma, vaddr, 0); spin_lock(&mm->page_table_lock); - if (!(ret & VM_FAULT_MAJOR)) + if (!(ret & VM_FAULT_ERROR)) continue; remainder = 0; -- 2.39.5