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.

Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: "Li Xinhai" <lixinhai.lxh@gmail.com>
Cc: Qian Cai <cai@lca.pw>
Link: http://lkml.kernel.org/r/1579068565-110432-1-git-send-email-yang.shi@linux.alibaba.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 58e3dfa..460683b 100644 (file)
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -650,7 +650,7 @@ static int queue_pages_test_walk(unsigned long start, unsigned long end,
        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;