Fix memory stats for cache in fs2

In cgroup v2, the "cache" value from cgroup v1 is called "file" in v2. There are no values called "cache" in v2. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/mm/memcontrol.c?id=31caf8b2a847214be856f843e251fc2ed2cd1075#n1521
opencontainers · Feb 22, 2021 · 3af80bd · 3af80bd
1 parent f245a1d
commit 3af80bd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libcontainer/cgroups/fs2/memory.go b/libcontainer/cgroups/fs2/memory.go
@@ -88,7 +88,7 @@ func statMemory(dirPath string, stats *cgroups.Stats) error {
 		}
 		stats.MemoryStats.Stats[t] = v
 	}
-	stats.MemoryStats.Cache = stats.MemoryStats.Stats["cache"]
+	stats.MemoryStats.Cache = stats.MemoryStats.Stats["file"]
 
 	memoryUsage, err := getMemoryDataV2(dirPath, "")
 	if err != nil {