updated for version 7.0021
diff --git a/src/fileio.c b/src/fileio.c
index 029a339..c37c96a 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -3985,8 +3985,9 @@
* journalled. Syncing the file slows down the system, but assures it has
* been written to disk and we don't lose it.
* For a device do try the fsync() but don't complain if it does not work
- * (could be a pipe). */
- if (fsync(fd) != 0 && !device)
+ * (could be a pipe).
+ * If the 'fsync' option is FALSE, don't fsync(). Useful for laptops. */
+ if (p_fs && fsync(fd) != 0 && !device)
{
errmsg = (char_u *)_("E667: Fsync failed");
end = 0;