[136/155] mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk()

Commit Message

Andrew Morton April 2, 2020, 4:10 a.m. UTC

From: Yang Shi <[e-mail]>
Subject: mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk()

The VM_BUG_ON() is already used by queue_pages_test_walk(), it sounds
better to dump more debug information by using VM_BUG_ON_VMA() to help
debugging.

Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Yang Shi <[e-mail]>
Reviewed-by: Andrew Morton <[e-mail]>
Cc: "Li Xinhai" <[e-mail]>
Cc: Qian Cai <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 mm/mempolicy.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

--- a/mm/mempolicy.c~mm-mempolicy-use-vm_bug_on_vma-in-queue_pages_test_walk
+++ a/mm/mempolicy.c
@@ -650,7 +650,7 @@  static int queue_pages_test_walk(unsigne
 	unsigned long flags = qp->flags;
 
 	/* range check first */
-	VM_BUG_ON((vma->vm_start > start) || (vma->vm_end < end));
+	VM_BUG_ON_VMA((vma->vm_start > start) || (vma->vm_end < end), vma);
 
 	if (!qp->first) {
 		qp->first = vma;