tree 3bf250eaea47937c85a65df72af321be67ac78b3
parent a9d019573e881472aa62f093fa599ad68cd0fc1e
author Amir Goldstein <amir73il@gmail.com> 1492978354 +0300
committer Miklos Szeredi <mszeredi@redhat.com> 1493977138 +0200

ovl: set the ORIGIN type flag

For directory entries, non zero oe->numlower implies OVL_TYPE_MERGE.
Define a new type flag OVL_TYPE_ORIGIN to indicate that an entry holds a
reference to its lower copy up origin.

For directory entries ORIGIN := MERGE && UPPER. For non-dir entries ORIGIN
means that a lower type dentry has been recently copied up or that we were
able to find the copy up origin from overlay.origin xattr.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>