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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 8cec52968e83..29655fb47a2c 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2614,6 +2614,13 @@ void filemap_map_pages(struct vm_fault *vmf,
goto next;
head = compound_head(page);
+
+ /*
+ * Check for a locked page first, as a speculative
+ * reference may adversely influence page migration.
+ */
+ if (PageLocked(head))
+ goto next;
if (!page_cache_get_speculative(head))
goto next;