1 files changed, 6 insertions, 0 deletions

diff --git a/mm/readahead.c b/mm/readahead.c
index 033bc135a41f..337b20e946f6 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -501,6 +501,12 @@ void page_cache_sync_readahead(struct address_space *mapping,
         if (!ra->ra_pages)
                 return;
 
+        /* be dumb */
+        if (filp->f_mode & FMODE_RANDOM) {
+                force_page_cache_readahead(mapping, filp, offset, req_size);
+                return;
+        }
+
         /* do read-ahead */
         ondemand_readahead(mapping, ra, filp, false, offset, req_size);
 }