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	[chore]: Bump github.com/KimMachineGun/automemlimit from 0.2.4 to 0.2.5 (#1666)
Bumps [github.com/KimMachineGun/automemlimit](https://github.com/KimMachineGun/automemlimit) from 0.2.4 to 0.2.5. - [Release notes](https://github.com/KimMachineGun/automemlimit/releases) - [Commits](https://github.com/KimMachineGun/automemlimit/compare/v0.2.4...v0.2.5) --- updated-dependencies: - dependency-name: github.com/KimMachineGun/automemlimit dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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					 200 changed files with 16392 additions and 38190 deletions
				
			
		
							
								
								
									
										362
									
								
								vendor/github.com/containerd/cgroups/v3/cgroup1/blkio.go
									
										
									
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								vendor/github.com/containerd/cgroups/v3/cgroup1/blkio.go
									
										
									
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							|  | @ -0,0 +1,362 @@ | |||
| /* | ||||
|    Copyright The containerd Authors. | ||||
| 
 | ||||
|    Licensed under the Apache License, Version 2.0 (the "License"); | ||||
|    you may not use this file except in compliance with the License. | ||||
|    You may obtain a copy of the License at | ||||
| 
 | ||||
|        http://www.apache.org/licenses/LICENSE-2.0 | ||||
| 
 | ||||
|    Unless required by applicable law or agreed to in writing, software | ||||
|    distributed under the License is distributed on an "AS IS" BASIS, | ||||
|    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||||
|    See the License for the specific language governing permissions and | ||||
|    limitations under the License. | ||||
| */ | ||||
| 
 | ||||
| package cgroup1 | ||||
| 
 | ||||
| import ( | ||||
| 	"bufio" | ||||
| 	"fmt" | ||||
| 	"io" | ||||
| 	"os" | ||||
| 	"path/filepath" | ||||
| 	"strconv" | ||||
| 	"strings" | ||||
| 
 | ||||
| 	v1 "github.com/containerd/cgroups/v3/cgroup1/stats" | ||||
| 
 | ||||
| 	specs "github.com/opencontainers/runtime-spec/specs-go" | ||||
| ) | ||||
| 
 | ||||
| // NewBlkio returns a Blkio controller given the root folder of cgroups. | ||||
| // It may optionally accept other configuration options, such as ProcRoot(path) | ||||
| func NewBlkio(root string, options ...func(controller *blkioController)) *blkioController { | ||||
| 	ctrl := &blkioController{ | ||||
| 		root:     filepath.Join(root, string(Blkio)), | ||||
| 		procRoot: "/proc", | ||||
| 	} | ||||
| 	for _, opt := range options { | ||||
| 		opt(ctrl) | ||||
| 	} | ||||
| 	return ctrl | ||||
| } | ||||
| 
 | ||||
| // ProcRoot overrides the default location of the "/proc" filesystem | ||||
| func ProcRoot(path string) func(controller *blkioController) { | ||||
| 	return func(c *blkioController) { | ||||
| 		c.procRoot = path | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| type blkioController struct { | ||||
| 	root     string | ||||
| 	procRoot string | ||||
| } | ||||
| 
 | ||||
| func (b *blkioController) Name() Name { | ||||
| 	return Blkio | ||||
| } | ||||
| 
 | ||||
| func (b *blkioController) Path(path string) string { | ||||
| 	return filepath.Join(b.root, path) | ||||
| } | ||||
| 
 | ||||
| func (b *blkioController) Create(path string, resources *specs.LinuxResources) error { | ||||
| 	if err := os.MkdirAll(b.Path(path), defaultDirPerm); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 	if resources.BlockIO == nil { | ||||
| 		return nil | ||||
| 	} | ||||
| 	for _, t := range createBlkioSettings(resources.BlockIO) { | ||||
| 		if t.value != nil { | ||||
| 			if err := os.WriteFile( | ||||
| 				filepath.Join(b.Path(path), "blkio."+t.name), | ||||
| 				t.format(t.value), | ||||
| 				defaultFilePerm, | ||||
| 			); err != nil { | ||||
| 				return err | ||||
| 			} | ||||
| 		} | ||||
| 	} | ||||
| 	return nil | ||||
| } | ||||
| 
 | ||||
| func (b *blkioController) Update(path string, resources *specs.LinuxResources) error { | ||||
| 	return b.Create(path, resources) | ||||
| } | ||||
| 
 | ||||
| func (b *blkioController) Stat(path string, stats *v1.Metrics) error { | ||||
| 	stats.Blkio = &v1.BlkIOStat{} | ||||
| 
 | ||||
| 	var settings []blkioStatSettings | ||||
| 
 | ||||
| 	// Try to read CFQ stats available on all CFQ enabled kernels first | ||||
| 	if _, err := os.Lstat(filepath.Join(b.Path(path), "blkio.io_serviced_recursive")); err == nil { | ||||
| 		settings = []blkioStatSettings{ | ||||
| 			{ | ||||
| 				name:  "sectors_recursive", | ||||
| 				entry: &stats.Blkio.SectorsRecursive, | ||||
| 			}, | ||||
| 			{ | ||||
| 				name:  "io_service_bytes_recursive", | ||||
| 				entry: &stats.Blkio.IoServiceBytesRecursive, | ||||
| 			}, | ||||
| 			{ | ||||
| 				name:  "io_serviced_recursive", | ||||
| 				entry: &stats.Blkio.IoServicedRecursive, | ||||
| 			}, | ||||
| 			{ | ||||
| 				name:  "io_queued_recursive", | ||||
| 				entry: &stats.Blkio.IoQueuedRecursive, | ||||
| 			}, | ||||
| 			{ | ||||
| 				name:  "io_service_time_recursive", | ||||
| 				entry: &stats.Blkio.IoServiceTimeRecursive, | ||||
| 			}, | ||||
| 			{ | ||||
| 				name:  "io_wait_time_recursive", | ||||
| 				entry: &stats.Blkio.IoWaitTimeRecursive, | ||||
| 			}, | ||||
| 			{ | ||||
| 				name:  "io_merged_recursive", | ||||
| 				entry: &stats.Blkio.IoMergedRecursive, | ||||
| 			}, | ||||
| 			{ | ||||
| 				name:  "time_recursive", | ||||
| 				entry: &stats.Blkio.IoTimeRecursive, | ||||
| 			}, | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	f, err := os.Open(filepath.Join(b.procRoot, "partitions")) | ||||
| 	if err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 	defer f.Close() | ||||
| 
 | ||||
| 	devices, err := getDevices(f) | ||||
| 	if err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 
 | ||||
| 	var size int | ||||
| 	for _, t := range settings { | ||||
| 		if err := b.readEntry(devices, path, t.name, t.entry); err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 		size += len(*t.entry) | ||||
| 	} | ||||
| 	if size > 0 { | ||||
| 		return nil | ||||
| 	} | ||||
| 
 | ||||
| 	// Even the kernel is compiled with the CFQ scheduler, the cgroup may not use | ||||
| 	// block devices with the CFQ scheduler. If so, we should fallback to throttle.* files. | ||||
| 	settings = []blkioStatSettings{ | ||||
| 		{ | ||||
| 			name:  "throttle.io_serviced", | ||||
| 			entry: &stats.Blkio.IoServicedRecursive, | ||||
| 		}, | ||||
| 		{ | ||||
| 			name:  "throttle.io_service_bytes", | ||||
| 			entry: &stats.Blkio.IoServiceBytesRecursive, | ||||
| 		}, | ||||
| 	} | ||||
| 	for _, t := range settings { | ||||
| 		if err := b.readEntry(devices, path, t.name, t.entry); err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 	} | ||||
| 	return nil | ||||
| } | ||||
| 
 | ||||
| func (b *blkioController) readEntry(devices map[deviceKey]string, path, name string, entry *[]*v1.BlkIOEntry) error { | ||||
| 	f, err := os.Open(filepath.Join(b.Path(path), "blkio."+name)) | ||||
| 	if err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 	defer f.Close() | ||||
| 	sc := bufio.NewScanner(f) | ||||
| 	for sc.Scan() { | ||||
| 		// format: dev type amount | ||||
| 		fields := strings.FieldsFunc(sc.Text(), splitBlkIOStatLine) | ||||
| 		if len(fields) < 3 { | ||||
| 			if len(fields) == 2 && fields[0] == "Total" { | ||||
| 				// skip total line | ||||
| 				continue | ||||
| 			} else { | ||||
| 				return fmt.Errorf("invalid line found while parsing %s: %s", path, sc.Text()) | ||||
| 			} | ||||
| 		} | ||||
| 		major, err := strconv.ParseUint(fields[0], 10, 64) | ||||
| 		if err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 		minor, err := strconv.ParseUint(fields[1], 10, 64) | ||||
| 		if err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 		op := "" | ||||
| 		valueField := 2 | ||||
| 		if len(fields) == 4 { | ||||
| 			op = fields[2] | ||||
| 			valueField = 3 | ||||
| 		} | ||||
| 		v, err := strconv.ParseUint(fields[valueField], 10, 64) | ||||
| 		if err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 		*entry = append(*entry, &v1.BlkIOEntry{ | ||||
| 			Device: devices[deviceKey{major, minor}], | ||||
| 			Major:  major, | ||||
| 			Minor:  minor, | ||||
| 			Op:     op, | ||||
| 			Value:  v, | ||||
| 		}) | ||||
| 	} | ||||
| 	return sc.Err() | ||||
| } | ||||
| 
 | ||||
| func createBlkioSettings(blkio *specs.LinuxBlockIO) []blkioSettings { | ||||
| 	settings := []blkioSettings{} | ||||
| 
 | ||||
| 	if blkio.Weight != nil { | ||||
| 		settings = append(settings, | ||||
| 			blkioSettings{ | ||||
| 				name:   "weight", | ||||
| 				value:  blkio.Weight, | ||||
| 				format: uintf, | ||||
| 			}) | ||||
| 	} | ||||
| 	if blkio.LeafWeight != nil { | ||||
| 		settings = append(settings, | ||||
| 			blkioSettings{ | ||||
| 				name:   "leaf_weight", | ||||
| 				value:  blkio.LeafWeight, | ||||
| 				format: uintf, | ||||
| 			}) | ||||
| 	} | ||||
| 	for _, wd := range blkio.WeightDevice { | ||||
| 		if wd.Weight != nil { | ||||
| 			settings = append(settings, | ||||
| 				blkioSettings{ | ||||
| 					name:   "weight_device", | ||||
| 					value:  wd, | ||||
| 					format: weightdev, | ||||
| 				}) | ||||
| 		} | ||||
| 		if wd.LeafWeight != nil { | ||||
| 			settings = append(settings, | ||||
| 				blkioSettings{ | ||||
| 					name:   "leaf_weight_device", | ||||
| 					value:  wd, | ||||
| 					format: weightleafdev, | ||||
| 				}) | ||||
| 		} | ||||
| 	} | ||||
| 	for _, t := range []struct { | ||||
| 		name string | ||||
| 		list []specs.LinuxThrottleDevice | ||||
| 	}{ | ||||
| 		{ | ||||
| 			name: "throttle.read_bps_device", | ||||
| 			list: blkio.ThrottleReadBpsDevice, | ||||
| 		}, | ||||
| 		{ | ||||
| 			name: "throttle.read_iops_device", | ||||
| 			list: blkio.ThrottleReadIOPSDevice, | ||||
| 		}, | ||||
| 		{ | ||||
| 			name: "throttle.write_bps_device", | ||||
| 			list: blkio.ThrottleWriteBpsDevice, | ||||
| 		}, | ||||
| 		{ | ||||
| 			name: "throttle.write_iops_device", | ||||
| 			list: blkio.ThrottleWriteIOPSDevice, | ||||
| 		}, | ||||
| 	} { | ||||
| 		for _, td := range t.list { | ||||
| 			settings = append(settings, blkioSettings{ | ||||
| 				name:   t.name, | ||||
| 				value:  td, | ||||
| 				format: throttleddev, | ||||
| 			}) | ||||
| 		} | ||||
| 	} | ||||
| 	return settings | ||||
| } | ||||
| 
 | ||||
| type blkioSettings struct { | ||||
| 	name   string | ||||
| 	value  interface{} | ||||
| 	format func(v interface{}) []byte | ||||
| } | ||||
| 
 | ||||
| type blkioStatSettings struct { | ||||
| 	name  string | ||||
| 	entry *[]*v1.BlkIOEntry | ||||
| } | ||||
| 
 | ||||
| func uintf(v interface{}) []byte { | ||||
| 	return []byte(strconv.FormatUint(uint64(*v.(*uint16)), 10)) | ||||
| } | ||||
| 
 | ||||
| func weightdev(v interface{}) []byte { | ||||
| 	wd := v.(specs.LinuxWeightDevice) | ||||
| 	return []byte(fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, *wd.Weight)) | ||||
| } | ||||
| 
 | ||||
| func weightleafdev(v interface{}) []byte { | ||||
| 	wd := v.(specs.LinuxWeightDevice) | ||||
| 	return []byte(fmt.Sprintf("%d:%d %d", wd.Major, wd.Minor, *wd.LeafWeight)) | ||||
| } | ||||
| 
 | ||||
| func throttleddev(v interface{}) []byte { | ||||
| 	td := v.(specs.LinuxThrottleDevice) | ||||
| 	return []byte(fmt.Sprintf("%d:%d %d", td.Major, td.Minor, td.Rate)) | ||||
| } | ||||
| 
 | ||||
| func splitBlkIOStatLine(r rune) bool { | ||||
| 	return r == ' ' || r == ':' | ||||
| } | ||||
| 
 | ||||
| type deviceKey struct { | ||||
| 	major, minor uint64 | ||||
| } | ||||
| 
 | ||||
| // getDevices makes a best effort attempt to read all the devices into a map | ||||
| // keyed by major and minor number. Since devices may be mapped multiple times, | ||||
| // we err on taking the first occurrence. | ||||
| func getDevices(r io.Reader) (map[deviceKey]string, error) { | ||||
| 
 | ||||
| 	var ( | ||||
| 		s       = bufio.NewScanner(r) | ||||
| 		devices = make(map[deviceKey]string) | ||||
| 	) | ||||
| 	for i := 0; s.Scan(); i++ { | ||||
| 		if i < 2 { | ||||
| 			continue | ||||
| 		} | ||||
| 		fields := strings.Fields(s.Text()) | ||||
| 		major, err := strconv.Atoi(fields[0]) | ||||
| 		if err != nil { | ||||
| 			return nil, err | ||||
| 		} | ||||
| 		minor, err := strconv.Atoi(fields[1]) | ||||
| 		if err != nil { | ||||
| 			return nil, err | ||||
| 		} | ||||
| 		key := deviceKey{ | ||||
| 			major: uint64(major), | ||||
| 			minor: uint64(minor), | ||||
| 		} | ||||
| 		if _, ok := devices[key]; ok { | ||||
| 			continue | ||||
| 		} | ||||
| 		devices[key] = filepath.Join("/dev", fields[3]) | ||||
| 	} | ||||
| 	return devices, s.Err() | ||||
| } | ||||
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