tree 3e82fc75b4d29e4bf09362c8c55b90e4ddcf23f7
parent 263b4a0fee43f1239c4d6f3c3a62fb5a20d84f2e
author Miklos Szeredi <mszeredi@suse.cz> 1418428783 +0100
committer Miklos Szeredi <mszeredi@suse.cz> 1418428783 +0100

ovl: add mutli-layer infrastructure

Add multiple lower layers to 'struct ovl_fs' and 'struct ovl_entry'.

ovl_entry will have an array of paths, instead of just the dentry.  This
allows a compact array containing just the layers which exist at current
point in the tree (which is expected to be a small number for the majority
of dentries).

The number of layers is not limited by this infrastructure.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>