From ae321cc9cf8d19f8a16b0fee8ced338fd0e52210 Mon Sep 17 00:00:00 2001
From: Tonis Tiigi <tonistiigi@gmail.com>
Date: Tue, 18 Sep 2018 10:50:19 -0700
Subject: [PATCH] cache: remove the unused old gc primitives

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
---
 cache/gc.go      | 27 ---------------------------
 cache/manager.go |  2 --
 2 files changed, 29 deletions(-)
 delete mode 100644 cache/gc.go

diff --git a/cache/gc.go b/cache/gc.go
deleted file mode 100644
index 31a98b93..00000000
--- a/cache/gc.go
+++ /dev/null
@@ -1,27 +0,0 @@
-package cache
-
-import (
-	"context"
-	"errors"
-	"time"
-)
-
-// GCPolicy defines policy for garbage collection
-type GCPolicy struct {
-	MaxSize         uint64
-	MaxKeepDuration time.Duration
-}
-
-// // CachePolicy defines policy for keeping a resource in cache
-// type CachePolicy struct {
-// 	Priority int
-// 	LastUsed time.Time
-// }
-//
-// func defaultCachePolicy() CachePolicy {
-// 	return CachePolicy{Priority: 10, LastUsed: time.Now()}
-// }
-
-func (cm *cacheManager) GC(ctx context.Context) error {
-	return errors.New("GC not implemented")
-}
diff --git a/cache/manager.go b/cache/manager.go
index de73baf4..948eb8df 100644
--- a/cache/manager.go
+++ b/cache/manager.go
@@ -25,7 +25,6 @@ var (
 
 type ManagerOpt struct {
 	Snapshotter     snapshot.SnapshotterBase
-	GCPolicy        GCPolicy
 	MetadataStore   *metadata.Store
 	PruneRefChecker ExternalRefCheckerFunc
 }
@@ -40,7 +39,6 @@ type Accessor interface {
 type Controller interface {
 	DiskUsage(ctx context.Context, info client.DiskUsageInfo) ([]*client.UsageInfo, error)
 	Prune(ctx context.Context, ch chan client.UsageInfo, info ...client.PruneInfo) error
-	GC(ctx context.Context) error
 }
 
 type Manager interface {