1 files changed, 13 insertions, 0 deletions

diff --git a/mm/debug.c b/mm/debug.c
index cdacba12e09a..6d9aa5359109 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -44,6 +44,7 @@ const struct trace_print_flags vmaflag_names[] = {
 
 void __dump_page(struct page *page, const char *reason)
 {
+        struct address_space *mapping = page_mapping(page);
         bool page_poisoned = PagePoisoned(page);
         int mapcount;
 
@@ -70,6 +71,18 @@ void __dump_page(struct page *page, const char *reason)
         if (PageCompound(page))
                 pr_cont(" compound_mapcount: %d", compound_mapcount(page));
         pr_cont("\n");
+        if (PageAnon(page))
+                pr_emerg("anon ");
+        else if (PageKsm(page))
+                pr_emerg("ksm ");
+        else if (mapping) {
+                pr_emerg("%ps ", mapping->a_ops);
+                if (mapping->host->i_dentry.first) {
+                        struct dentry *dentry;
+                        dentry = container_of(mapping->host->i_dentry.first, struct dentry, d_u.d_alias);
+                        pr_emerg("name:\"%pd\" ", dentry);
+                }
+        }
         BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS + 1);
 
         pr_emerg("flags: %#lx(%pGp)\n", page->flags, &page->flags);