blockstore: move ARC cache below the bloom cache

ARC cache is influenced by requests and bloom isn't
This means that if bloom is able to remove some requests caching them in
ARC is pointless.

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>

blocks/blockstore/caching.go

@@ -36,12 +36,13 @@ func CachedBlockstore(bs GCBlockstore,
 	if opts.HasBloomFilterSize != 0 && opts.HasBloomFilterHashes == 0 {
 		return nil, errors.New("bloom filter hash count can't be 0 when there is size set")
 	}
-	if opts.HasBloomFilterSize != 0 {
-		cbs, err = bloomCached(cbs, ctx, opts.HasBloomFilterSize, opts.HasBloomFilterHashes)
-	}
+
 	if opts.HasARCCacheSize > 0 {
 		cbs, err = newARCCachedBS(cbs, ctx, opts.HasARCCacheSize)
 	}
+	if opts.HasBloomFilterSize != 0 {
+		cbs, err = bloomCached(cbs, ctx, opts.HasBloomFilterSize, opts.HasBloomFilterHashes)
+	}
 
 	return cbs, err
 }