linux-kernel - [PATCH v6 01/51] mm: Print head flags in dump

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Message-Id: <20200610201345.13273-2-willy@infradead.org>
Date:   Wed, 10 Jun 2020 13:12:55 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     linux-fsdevel@...r.kernel.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH v6 01/51] mm: Print head flags in dump_page

From: "Matthew Wilcox (Oracle)" <willy@...radead.org>

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@...radead.org>
---
 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