[PATCH v6 01/51] mm: Print head flags in dump_page

[Matthew Wilcox <willy@xxxxxxxxxxxxx>]

From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>

Tail page flags contain very little useful information.  Print the head
page's flags instead (even though PageHead is a little misleading).

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 mm/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/debug.c b/mm/debug.c
index b5b1de8c71ac..384eef80649d 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -163,7 +163,7 @@ void __dump_page(struct page *page, const char *reason)
 out_mapping:
 	BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS + 1);
 
-	pr_warn("%sflags: %#lx(%pGp)%s\n", type, page->flags, &page->flags,
+	pr_warn("%sflags: %#lx(%pGp)%s\n", type, head->flags, &head->flags,
 		page_cma ? " CMA" : "");
 
 hex_only:
-- 
2.26.2