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overlay: fix race condition when switching to jffs2
[project/fstools.git]
/
libfstools
/
overlay.c
diff --git
a/libfstools/overlay.c
b/libfstools/overlay.c
index
7ada5ff
..
8423a57
100644
(file)
--- a/
libfstools/overlay.c
+++ b/
libfstools/overlay.c
@@
-243,6
+243,10
@@
jffs2_switch(struct volume *v)
ULOG_INFO("performing overlay whiteout\n");
umount2("/tmp/root", MNT_DETACH);
foreachdir("/overlay/", handle_whiteout);
ULOG_INFO("performing overlay whiteout\n");
umount2("/tmp/root", MNT_DETACH);
foreachdir("/overlay/", handle_whiteout);
+
+ /* try hard to be in sync */
+ ULOG_INFO("syncronizing overlay\n");
+ system("cp -a /tmp/root/upper/* / 2>/dev/null");
break;
case FS_EXT4:
break;
case FS_EXT4: