diff options
Diffstat (limited to 'vendor/github.com/prometheus/procfs/mdstat.go')
| -rw-r--r-- | vendor/github.com/prometheus/procfs/mdstat.go | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/vendor/github.com/prometheus/procfs/mdstat.go b/vendor/github.com/prometheus/procfs/mdstat.go index 98e37aa8c..4c4493bfa 100644 --- a/vendor/github.com/prometheus/procfs/mdstat.go +++ b/vendor/github.com/prometheus/procfs/mdstat.go @@ -22,8 +22,9 @@ import ( ) var ( - statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[[U_]+\]`) - recoveryLineRE = regexp.MustCompile(`\((\d+)/\d+\)`) + statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[[U_]+\]`) + recoveryLineRE = regexp.MustCompile(`\((\d+)/\d+\)`) + componentDeviceRE = regexp.MustCompile(`(.*)\[\d+\]`) ) // MDStat holds info parsed from /proc/mdstat. @@ -44,6 +45,8 @@ type MDStat struct { BlocksTotal int64 // Number of blocks on the device that are in sync. BlocksSynced int64 + // Name of md component devices + Devices []string } // MDStat parses an mdstat-file (/proc/mdstat) and returns a slice of @@ -56,7 +59,7 @@ func (fs FS) MDStat() ([]MDStat, error) { } mdstat, err := parseMDStat(data) if err != nil { - return nil, fmt.Errorf("error parsing mdstat %s: %s", fs.proc.Path("mdstat"), err) + return nil, fmt.Errorf("error parsing mdstat %q: %w", fs.proc.Path("mdstat"), err) } return mdstat, nil } @@ -82,10 +85,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { state := deviceFields[2] // active or inactive if len(lines) <= i+3 { - return nil, fmt.Errorf( - "error parsing %s: too few lines for md device", - mdName, - ) + return nil, fmt.Errorf("error parsing %q: too few lines for md device", mdName) } // Failed disks have the suffix (F) & Spare disks have the suffix (S). @@ -94,7 +94,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { active, total, size, err := evalStatusLine(lines[i], lines[i+1]) if err != nil { - return nil, fmt.Errorf("error parsing md device lines: %s", err) + return nil, fmt.Errorf("error parsing md device lines: %w", err) } syncLineIdx := i + 2 @@ -126,7 +126,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { } else { syncedBlocks, err = evalRecoveryLine(lines[syncLineIdx]) if err != nil { - return nil, fmt.Errorf("error parsing sync line in md device %s: %s", mdName, err) + return nil, fmt.Errorf("error parsing sync line in md device %q: %w", mdName, err) } } } @@ -140,6 +140,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { DisksTotal: total, BlocksTotal: size, BlocksSynced: syncedBlocks, + Devices: evalComponentDevices(deviceFields), }) } @@ -151,7 +152,7 @@ func evalStatusLine(deviceLine, statusLine string) (active, total, size int64, e sizeStr := strings.Fields(statusLine)[0] size, err = strconv.ParseInt(sizeStr, 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusLine %s: %s", statusLine, err) + return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) } if strings.Contains(deviceLine, "raid0") || strings.Contains(deviceLine, "linear") { @@ -171,12 +172,12 @@ func evalStatusLine(deviceLine, statusLine string) (active, total, size int64, e total, err = strconv.ParseInt(matches[2], 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusLine %s: %s", statusLine, err) + return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) } active, err = strconv.ParseInt(matches[3], 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusLine %s: %s", statusLine, err) + return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) } return active, total, size, nil @@ -190,8 +191,23 @@ func evalRecoveryLine(recoveryLine string) (syncedBlocks int64, err error) { syncedBlocks, err = strconv.ParseInt(matches[1], 10, 64) if err != nil { - return 0, fmt.Errorf("%s in recoveryLine: %s", err, recoveryLine) + return 0, fmt.Errorf("error parsing int from recoveryLine %q: %w", recoveryLine, err) } return syncedBlocks, nil } + +func evalComponentDevices(deviceFields []string) []string { + mdComponentDevices := make([]string, 0) + if len(deviceFields) > 3 { + for _, field := range deviceFields[4:] { + match := componentDeviceRE.FindStringSubmatch(field) + if match == nil { + continue + } + mdComponentDevices = append(mdComponentDevices, match[1]) + } + } + + return mdComponentDevices +} |