commit 2e3abe2d052b5e5a44c1d8dd873bc4432a201807
author Treehugger Robot <treehugger-gerrit@google.com> Wed Apr 12 07:45:12 2017 +0000
committer Gerrit Code Review <noreply-gerritcodereview@google.com> Wed Apr 12 07:45:13 2017 +0000
tree 6b2d30f30735201b2ca0dd9ae465b3a8d27d7f3b
parent 162118928e856a0da229b4d1617fc91f053fed49
parent 95e233f9ff4d51bbafc6314b88920f553edd365f

Merge "use s_max_mnt_count to detect mke2fs generated partition"

fs_mgr/fs_mgr.cpp

diff --git a/fs_mgr/fs_mgr.cpp b/fs_mgr/fs_mgr.cpp
index 6636be2..120129c 100644
--- a/fs_mgr/fs_mgr.cpp
+++ b/fs_mgr/fs_mgr.cpp
@@ -283,7 +283,10 @@
                     return force_check;
                 }
                 *fs_stat |= FS_STAT_IS_EXT4;
-                //TODO check if it is new version or not
+                LINFO << "superblock s_max_mnt_count:" << sb.s_max_mnt_count << "," << blk_device;
+                if (sb.s_max_mnt_count == 0xffff) {  // -1 (int16) in ext2, but uint16 in ext4
+                    *fs_stat |= FS_STAT_NEW_IMAGE_VERSION;
+                }
                 if ((sb.s_feature_incompat & EXT4_FEATURE_INCOMPAT_RECOVER) != 0 ||
                     (sb.s_state & EXT4_VALID_FS) == 0) {
                     LINFO << __FUNCTION__ << "(): was not clealy shutdown, state flag:"