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-rw-r--r--mm/filemap.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 798324941a87..076282561870 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -163,6 +163,13 @@ static void page_cache_tree_delete(struct address_space *mapping,
__radix_tree_lookup(&mapping->page_tree, page->index, &node, &slot);
+ /*
+ * We need a node to properly account shadow
+ * entries. Don't plant any without. XXX
+ */
+ if (!node)
+ shadow = NULL;
+
if (shadow) {
mapping->nrshadows++;
/*