libct/cg/fs: rename join to apply

As this is called from the Apply() method, it's a natural name.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

libcontainer/cgroups/fs/blkio.go

@@ -21,7 +21,7 @@ func (s *BlkioGroup) Name() string {
 }
 
 func (s *BlkioGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *BlkioGroup) Set(path string, r *configs.Resources) error {

libcontainer/cgroups/fs/cpuacct.go

@@ -35,7 +35,7 @@ func (s *CpuacctGroup) Name() string {
 }
 
 func (s *CpuacctGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *CpuacctGroup) Set(_ string, _ *configs.Resources) error {

libcontainer/cgroups/fs/devices.go

@@ -29,7 +29,7 @@ func (s *DevicesGroup) Apply(path string, d *cgroupData) error {
 		// is a hard requirement for container's security.
 		return errSubsystemDoesNotExist
 	}
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func loadEmulator(path string) (*cgroupdevices.Emulator, error) {

libcontainer/cgroups/fs/freezer.go

@@ -20,7 +20,7 @@ func (s *FreezerGroup) Name() string {
 }
 
 func (s *FreezerGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *FreezerGroup) Set(path string, r *configs.Resources) (Err error) {

libcontainer/cgroups/fs/hugetlb.go

@@ -15,7 +15,7 @@ func (s *HugetlbGroup) Name() string {
 }
 
 func (s *HugetlbGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *HugetlbGroup) Set(path string, r *configs.Resources) error {

libcontainer/cgroups/fs/memory.go

@@ -31,7 +31,7 @@ func (s *MemoryGroup) Name() string {
 }
 
 func (s *MemoryGroup) Apply(path string, d *cgroupData) (err error) {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func setMemory(path string, val int64) error {

libcontainer/cgroups/fs/name.go

@@ -17,7 +17,7 @@ func (s *NameGroup) Name() string {
 func (s *NameGroup) Apply(path string, d *cgroupData) error {
 	if s.Join {
 		// ignore errors if the named cgroup does not exist
-		_ = join(path, d.pid)
+		_ = apply(path, d.pid)
 	}
 	return nil
 }

libcontainer/cgroups/fs/net_cls.go

@@ -14,7 +14,7 @@ func (s *NetClsGroup) Name() string {
 }
 
 func (s *NetClsGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *NetClsGroup) Set(path string, r *configs.Resources) error {

libcontainer/cgroups/fs/net_prio.go

@@ -12,7 +12,7 @@ func (s *NetPrioGroup) Name() string {
 }
 
 func (s *NetPrioGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *NetPrioGroup) Set(path string, r *configs.Resources) error {

libcontainer/cgroups/fs/paths.go

@@ -162,7 +162,7 @@ func (raw *cgroupData) path(subsystem string) (string, error) {
 	return filepath.Join(parentPath, raw.innerPath), nil
 }
 
-func join(path string, pid int) error {
+func apply(path string, pid int) error {
 	if path == "" {
 		return nil
 	}

libcontainer/cgroups/fs/perf_event.go

@@ -12,7 +12,7 @@ func (s *PerfEventGroup) Name() string {
 }
 
 func (s *PerfEventGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *PerfEventGroup) Set(_ string, _ *configs.Resources) error {

libcontainer/cgroups/fs/pids.go

@@ -16,7 +16,7 @@ func (s *PidsGroup) Name() string {
 }
 
 func (s *PidsGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *PidsGroup) Set(path string, r *configs.Resources) error {

libcontainer/cgroups/fs/rdma.go

@@ -13,7 +13,7 @@ func (s *RdmaGroup) Name() string {
 }
 
 func (s *RdmaGroup) Apply(path string, d *cgroupData) error {
-	return join(path, d.pid)
+	return apply(path, d.pid)
 }
 
 func (s *RdmaGroup) Set(path string, r *configs.Resources) error {