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-rw-r--r--mm/debug.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/debug.c b/mm/debug.c
index 8865bfb41b0b..74c7cae4f683 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -42,9 +42,11 @@ const struct trace_print_flags vmaflag_names[] = {
void __dump_page(struct page *page, const char *reason)
{
+ int mapcount = PageSlab(page) ? 0 : page_mapcount(page);
+
pr_emerg("page:%p count:%d mapcount:%d mapping:%p index:%#lx",
- page, page_ref_count(page), page_mapcount(page),
- page->mapping, page->index);
+ page, page_ref_count(page), mapcount,
+ page->mapping, page_to_pgoff(page));
if (PageCompound(page))
pr_cont(" compound_mapcount: %d", compound_mapcount(page));
pr_cont("\n");