1 files changed, 4 insertions, 0 deletions

diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index b9b567a28376..5d7c7ececa64 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -114,6 +114,9 @@ int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize)
                 if (!pagevec_add(&lru_pvec, page))
                         __pagevec_lru_add_file(&lru_pvec);
 
+                /* prevent the page from being discarded on memory pressure */
+                SetPageDirty(page);
+
                 unlock_page(page);
         }
 
@@ -126,6 +129,7 @@ int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize)
         return -EFBIG;
 
  add_error:
+        pagevec_lru_add_file(&lru_pvec);
         page_cache_release(pages + loop);
         for (loop++; loop < npages; loop++)
                 __free_page(pages + loop);