ext4_utils: enable uninit_bg feature for ext4 mke2fs

Some devices have very slow storage media. This feature can speed
up filesystem creation time noticeably.

Bug: 63809106
Bug: 64101366
Change-Id: Id4886822035808bcb279dbf6f81989fee9cc0ace

diff --git a/ext4_utils/mke2fs.conf b/ext4_utils/mke2fs.conf
index b6a05c1..987b8fa 100644 (file)
--- a/ext4_utils/mke2fs.conf
+++ b/ext4_utils/mke2fs.conf
@@ -12,7 +12,7 @@
         features = has_journal
     }
     ext4 = {
-        features = has_journal,extent,huge_file,flex_bg,64bit,dir_nlink,extra_isize
+        features = has_journal,extent,huge_file,flex_bg,64bit,dir_nlink,extra_isize,uninit_bg
         inode_size = 256
     }
     ext4dev = {