1 files changed, 0 insertions, 291 deletions
diff --git a/kube2msb/src/vendor/github.com/opencontainers/runc/libcontainer/cgroups/fs/memory.go b/kube2msb/src/vendor/github.com/opencontainers/runc/libcontainer/cgroups/fs/memory.go
deleted file mode 100644
index b837128..0000000
--- a/kube2msb/src/vendor/github.com/opencontainers/runc/libcontainer/cgroups/fs/memory.go
+++ /dev/null
@@ -1,291 +0,0 @@
-// +build linux
-
-package fs
-
-import (
-	"bufio"
-	"fmt"
-	"os"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/opencontainers/runc/libcontainer/cgroups"
-	"github.com/opencontainers/runc/libcontainer/configs"
-)
-
-type MemoryGroup struct {
-}
-
-func (s *MemoryGroup) Name() string {
-	return "memory"
-}
-
-func (s *MemoryGroup) Apply(d *cgroupData) (err error) {
-	path, err := d.path("memory")
-	if err != nil && !cgroups.IsNotFound(err) {
-		return err
-	}
-	// reset error.
-	err = nil
-	if path == "" {
-		// Invalid input.
-		return fmt.Errorf("invalid path for memory cgroups: %+v", d)
-	}
-	defer func() {
-		if err != nil {
-			os.RemoveAll(path)
-		}
-	}()
-	if !cgroups.PathExists(path) {
-		if err = os.MkdirAll(path, 0755); err != nil {
-			return err
-		}
-	}
-	if memoryAssigned(d.config) {
-		// We have to set kernel memory here, as we can't change it once
-		// processes have been attached to the cgroup.
-		if err = s.SetKernelMemory(path, d.config); err != nil {
-			return err
-		}
-	}
-	// We need to join memory cgroup after set memory limits, because
-	// kmem.limit_in_bytes can only be set when the cgroup is empty.
-	if _, jerr := d.join("memory"); jerr != nil && !cgroups.IsNotFound(jerr) {
-		err = jerr
-		return err
-	}
-	return nil
-}
-
-func getModifyTime(path string) (time.Time, error) {
-	stat, err := os.Stat(path)
-	if err != nil {
-		return time.Time{}, fmt.Errorf("failed to get memory cgroups creation time: %v", err)
-	}
-	return stat.ModTime(), nil
-}
-
-func (s *MemoryGroup) SetKernelMemory(path string, cgroup *configs.Cgroup) error {
-	// This has to be done separately because it has special
-	// constraints (it can only be initialized before setting up a
-	// hierarchy or adding a task to the cgroups. However, if
-	// sucessfully initialized, it can be updated anytime afterwards)
-	if cgroup.Resources.KernelMemory != 0 {
-		// Is kmem.limit_in_bytes already set?
-		// memory.kmem.max_usage_in_bytes is a read-only file. Use it to get cgroups creation time.
-		kmemCreationTime, err := getModifyTime(filepath.Join(path, "memory.kmem.max_usage_in_bytes"))
-		if err != nil {
-			return err
-		}
-		kmemLimitsUpdateTime, err := getModifyTime(filepath.Join(path, "memory.kmem.limit_in_bytes"))
-		if err != nil {
-			return err
-		}
-		// kmem.limit_in_bytes has already been set if its update time is after that of creation time.
-		// We use `!=` op instead of `>` because updates are losing precision compared to creation.
-		kmemInitialized := !kmemLimitsUpdateTime.Equal(kmemCreationTime)
-		if !kmemInitialized {
-			// If there's already tasks in the cgroup, we can't change the limit either
-			tasks, err := getCgroupParamString(path, "tasks")
-			if err != nil {
-				return err
-			}
-			if tasks != "" {
-				return fmt.Errorf("cannot set kmem.limit_in_bytes after task have joined this cgroup")
-			}
-		}
-		if err := writeFile(path, "memory.kmem.limit_in_bytes", strconv.FormatInt(cgroup.Resources.KernelMemory, 10)); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func setMemoryAndSwap(path string, cgroup *configs.Cgroup) error {
-	// When memory and swap memory are both set, we need to handle the cases
-	// for updating container.
-	if cgroup.Resources.Memory != 0 && cgroup.Resources.MemorySwap > 0 {
-		memoryUsage, err := getMemoryData(path, "")
-		if err != nil {
-			return err
-		}
-
-		// When update memory limit, we should adapt the write sequence
-		// for memory and swap memory, so it won't fail because the new
-		// value and the old value don't fit kernel's validation.
-		if memoryUsage.Limit < uint64(cgroup.Resources.MemorySwap) {
-			if err := writeFile(path, "memory.memsw.limit_in_bytes", strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
-				return err
-			}
-			if err := writeFile(path, "memory.limit_in_bytes", strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
-				return err
-			}
-		} else {
-			if err := writeFile(path, "memory.limit_in_bytes", strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
-				return err
-			}
-			if err := writeFile(path, "memory.memsw.limit_in_bytes", strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
-				return err
-			}
-		}
-	} else {
-		if cgroup.Resources.Memory != 0 {
-			if err := writeFile(path, "memory.limit_in_bytes", strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
-				return err
-			}
-		}
-		if cgroup.Resources.MemorySwap > 0 {
-			if err := writeFile(path, "memory.memsw.limit_in_bytes", strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
-				return err
-			}
-		}
-	}
-
-	return nil
-}
-
-func (s *MemoryGroup) Set(path string, cgroup *configs.Cgroup) error {
-	if err := setMemoryAndSwap(path, cgroup); err != nil {
-		return err
-	}
-
-	if err := s.SetKernelMemory(path, cgroup); err != nil {
-		return err
-	}
-
-	if cgroup.Resources.MemoryReservation != 0 {
-		if err := writeFile(path, "memory.soft_limit_in_bytes", strconv.FormatInt(cgroup.Resources.MemoryReservation, 10)); err != nil {
-			return err
-		}
-	}
-	if cgroup.Resources.KernelMemoryTCP != 0 {
-		if err := writeFile(path, "memory.kmem.tcp.limit_in_bytes", strconv.FormatInt(cgroup.Resources.KernelMemoryTCP, 10)); err != nil {
-			return err
-		}
-	}
-	if cgroup.Resources.OomKillDisable {
-		if err := writeFile(path, "memory.oom_control", "1"); err != nil {
-			return err
-		}
-	}
-	if cgroup.Resources.MemorySwappiness == nil || int64(*cgroup.Resources.MemorySwappiness) == -1 {
-		return nil
-	} else if int64(*cgroup.Resources.MemorySwappiness) >= 0 && int64(*cgroup.Resources.MemorySwappiness) <= 100 {
-		if err := writeFile(path, "memory.swappiness", strconv.FormatInt(*cgroup.Resources.MemorySwappiness, 10)); err != nil {
-			return err
-		}
-	} else {
-		return fmt.Errorf("invalid value:%d. valid memory swappiness range is 0-100", int64(*cgroup.Resources.MemorySwappiness))
-	}
-
-	return nil
-}
-
-func (s *MemoryGroup) Remove(d *cgroupData) error {
-	return removePath(d.path("memory"))
-}
-
-func (s *MemoryGroup) GetStats(path string, stats *cgroups.Stats) error {
-	// Set stats from memory.stat.
-	statsFile, err := os.Open(filepath.Join(path, "memory.stat"))
-	if err != nil {
-		if os.IsNotExist(err) {
-			return nil
-		}
-		return err
-	}
-	defer statsFile.Close()
-
-	sc := bufio.NewScanner(statsFile)
-	for sc.Scan() {
-		t, v, err := getCgroupParamKeyValue(sc.Text())
-		if err != nil {
-			return fmt.Errorf("failed to parse memory.stat (%q) - %v", sc.Text(), err)
-		}
-		stats.MemoryStats.Stats[t] = v
-	}
-	stats.MemoryStats.Cache = stats.MemoryStats.Stats["cache"]
-
-	memoryUsage, err := getMemoryData(path, "")
-	if err != nil {
-		return err
-	}
-	stats.MemoryStats.Usage = memoryUsage
-	swapUsage, err := getMemoryData(path, "memsw")
-	if err != nil {
-		return err
-	}
-	stats.MemoryStats.SwapUsage = swapUsage
-	kernelUsage, err := getMemoryData(path, "kmem")
-	if err != nil {
-		return err
-	}
-	stats.MemoryStats.KernelUsage = kernelUsage
-	kernelTCPUsage, err := getMemoryData(path, "kmem.tcp")
-	if err != nil {
-		return err
-	}
-	stats.MemoryStats.KernelTCPUsage = kernelTCPUsage
-
-	return nil
-}
-
-func memoryAssigned(cgroup *configs.Cgroup) bool {
-	return cgroup.Resources.Memory != 0 ||
-		cgroup.Resources.MemoryReservation != 0 ||
-		cgroup.Resources.MemorySwap > 0 ||
-		cgroup.Resources.KernelMemory > 0 ||
-		cgroup.Resources.KernelMemoryTCP > 0 ||
-		cgroup.Resources.OomKillDisable ||
-		(cgroup.Resources.MemorySwappiness != nil && *cgroup.Resources.MemorySwappiness != -1)
-}
-
-func getMemoryData(path, name string) (cgroups.MemoryData, error) {
-	memoryData := cgroups.MemoryData{}
-
-	moduleName := "memory"
-	if name != "" {
-		moduleName = strings.Join([]string{"memory", name}, ".")
-	}
-	usage := strings.Join([]string{moduleName, "usage_in_bytes"}, ".")
-	maxUsage := strings.Join([]string{moduleName, "max_usage_in_bytes"}, ".")
-	failcnt := strings.Join([]string{moduleName, "failcnt"}, ".")
-	limit := strings.Join([]string{moduleName, "limit_in_bytes"}, ".")
-
-	value, err := getCgroupParamUint(path, usage)
-	if err != nil {
-		if moduleName != "memory" && os.IsNotExist(err) {
-			return cgroups.MemoryData{}, nil
-		}
-		return cgroups.MemoryData{}, fmt.Errorf("failed to parse %s - %v", usage, err)
-	}
-	memoryData.Usage = value
-	value, err = getCgroupParamUint(path, maxUsage)
-	if err != nil {
-		if moduleName != "memory" && os.IsNotExist(err) {
-			return cgroups.MemoryData{}, nil
-		}
-		return cgroups.MemoryData{}, fmt.Errorf("failed to parse %s - %v", maxUsage, err)
-	}
-	memoryData.MaxUsage = value
-	value, err = getCgroupParamUint(path, failcnt)
-	if err != nil {
-		if moduleName != "memory" && os.IsNotExist(err) {
-			return cgroups.MemoryData{}, nil
-		}
-		return cgroups.MemoryData{}, fmt.Errorf("failed to parse %s - %v", failcnt, err)
-	}
-	memoryData.Failcnt = value
-	value, err = getCgroupParamUint(path, limit)
-	if err != nil {
-		if moduleName != "memory" && os.IsNotExist(err) {
-			return cgroups.MemoryData{}, nil
-		}
-		return cgroups.MemoryData{}, fmt.Errorf("failed to parse %s - %v", limit, err)
-	}
-	memoryData.Limit = value
-
-	return memoryData, nil
-}