summaryrefslogtreecommitdiff
path: root/libpod/container_internal.go
diff options
context:
space:
mode:
Diffstat (limited to 'libpod/container_internal.go')
-rw-r--r--libpod/container_internal.go14
1 files changed, 8 insertions, 6 deletions
diff --git a/libpod/container_internal.go b/libpod/container_internal.go
index 9d97ac5d6..562f783a7 100644
--- a/libpod/container_internal.go
+++ b/libpod/container_internal.go
@@ -84,7 +84,7 @@ func (c *Container) rootFsSize() (int64, error) {
return size + layerSize, err
}
-// rwSize Gets the size of the mutable top layer of the container.
+// rwSize gets the size of the mutable top layer of the container.
func (c *Container) rwSize() (int64, error) {
if c.config.Rootfs != "" {
var size int64
@@ -103,14 +103,16 @@ func (c *Container) rwSize() (int64, error) {
return 0, err
}
- // Get the size of the top layer by calculating the size of the diff
- // between the layer and its parent. The top layer of a container is
- // the only RW layer, all others are immutable
- layer, err := c.runtime.store.Layer(container.LayerID)
+ // The top layer of a container is
+ // the only readable/writeable layer, all others are immutable.
+ rwLayer, err := c.runtime.store.Layer(container.LayerID)
if err != nil {
return 0, err
}
- return c.runtime.store.DiffSize(layer.Parent, layer.ID)
+
+ // Get the size of the top layer by calculating the size of the diff
+ // between the layer and its parent.
+ return c.runtime.store.DiffSize(rwLayer.Parent, rwLayer.ID)
}
// bundlePath returns the path to the container's root filesystem - where the OCI spec will be