When directories are white-outed we can get called with the previously
removed directories. Handle this with os.IsNotExist(error).
Upstream-commit: 6f3c32eb18f0a604ba2638b6a9f19f8824412fd1
Component: engine
This replaces the current version with the latest version from the
dm branch. Advantages in this version:
We only scan each directory tree once, which means less i/o and less chance
of container changes inbetween the two scans causing inconsistencies.
We avoid comparing some fields for change detection:
* Inode
* size-in-blocks
These can change during a copy operation (e.g. in the dummy backend)
without needing to actually reflect a change in content or metadata.
* Ctime
Any copy operation will create a new Ctime value, and there is no
API to change it to the "source" value.
* size for directories
The size of a directory doesn't have to be the same just because you
recreated the same content as another director. Internal details in
the filesystem may make these different with no "real" change.
Upstream-commit: b6ef4bc9521346dc5066d71821c6cadfbeced9d3
Component: engine
Some aufs metadata are directories, and whiteouts can be for
directories, so use os.RemoveAll() for these.
Upstream-commit: 484804abffda2692492e295d4691f90564d05eb2
Component: engine
plugin.
The merge is inert, in other words the devmapper code is not called
and the primary aufs backend is untouched.
Upstream-commit: 36c7a7ae943220ffb1bea9cd47d2f586db00eab2
Component: engine
