Commit d888fb2b authored Apr 01, 2020 by Yang Shi Committed by Linus Torvalds Apr 02, 2020

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>

parent 20ca87f2

mm/mempolicy.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

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