1 files changed, 2 insertions, 1 deletions

diff --git a/mm/fadvise.c b/mm/fadvise.c
index 8d723c9e8b75..469491e0af79 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -117,7 +117,8 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, loff_t offset, loff_t len, int advice)
                 break;
         case POSIX_FADV_DONTNEED:
                 if (!bdi_write_congested(mapping->backing_dev_info))
-                        filemap_flush(mapping);
+                        __filemap_fdatawrite_range(mapping, offset, endbyte,
+                                                   WB_SYNC_NONE);
 
                 /* First and last FULL page! */
                 start_index = (offset+(PAGE_CACHE_SIZE-1)) >> PAGE_CACHE_SHIFT;