diff --git a/mm/shmem.c b/mm/shmem.c
index fe5ae6962ab3..45c26476f0fc 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1095,9 +1095,14 @@ repeat:
 		shmem_recalc_inode(inode);
 		spin_unlock(&info->lock);
 
-		clear_highpage(page);
-		flush_dcache_page(page);
-		SetPageUptodate(page);
+		/*
+		 * Let SGP_WRITE caller clear ends if write does not fill page
+		 */
+		if (sgp != SGP_WRITE) {
+			clear_highpage(page);
+			flush_dcache_page(page);
+			SetPageUptodate(page);
+		}
 		if (sgp == SGP_DIRTY)
 			set_page_dirty(page);
 	}
@@ -1307,6 +1312,14 @@ shmem_write_end(struct file *file, struct address_space *mapping,
 	if (pos + copied > inode->i_size)
 		i_size_write(inode, pos + copied);
 
+	if (!PageUptodate(page)) {
+		if (copied < PAGE_CACHE_SIZE) {
+			unsigned from = pos & (PAGE_CACHE_SIZE - 1);
+			zero_user_segments(page, 0, from,
+					from + copied, PAGE_CACHE_SIZE);
+		}
+		SetPageUptodate(page);
+	}
 	set_page_dirty(page);
 	unlock_page(page);
 	page_cache_release(page);
@@ -1768,6 +1781,7 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
 		kaddr = kmap_atomic(page);
 		memcpy(kaddr, symname, len);
 		kunmap_atomic(kaddr);
+		SetPageUptodate(page);
 		set_page_dirty(page);
 		unlock_page(page);
 		page_cache_release(page);