linux-kernel - [PATCH v6 02/51] mm: Print the inode number in dump

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Message-Id: <20200610201345.13273-3-willy@infradead.org>
Date:   Wed, 10 Jun 2020 13:12:56 -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 02/51] mm: Print the inode number in dump_page

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

The inode number helps correlate this page with debug messages elsewhere
in the kernel.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 mm/debug.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/mm/debug.c b/mm/debug.c
index 384eef80649d..e30e35b41d0e 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -133,15 +133,16 @@ void __dump_page(struct page *page, const char *reason)
 			goto out_mapping;
 		}
 
-		if (probe_kernel_read(&dentry_first,
-			&host->i_dentry.first, sizeof(struct hlist_node *))) {
+		if (probe_kernel_read(&dentry_first, &host->i_dentry.first,
+					sizeof(struct hlist_node *))) {
 			pr_warn("mapping->a_ops:%ps with invalid mapping->host inode address %px\n",
 				a_ops, host);
 			goto out_mapping;
 		}
 
 		if (!dentry_first) {
-			pr_warn("mapping->a_ops:%ps\n", a_ops);
+			pr_warn("mapping->a_ops:%ps ino %lx\n", a_ops,
+					host->i_ino);
 			goto out_mapping;
 		}
 
@@ -156,8 +157,8 @@ void __dump_page(struct page *page, const char *reason)
 			 * crash, but it's unlikely that we reach here with a
 			 * corrupted struct page
 			 */
-			pr_warn("mapping->aops:%ps dentry name:\"%pd\"\n",
-								a_ops, &dentry);
+			pr_warn("mapping->aops:%ps ino %lx dentry name:\"%pd\"\n",
+					a_ops, host->i_ino, &dentry);
 		}
 	}
 out_mapping:
-- 
2.26.2