1 files changed, 14 insertions, 6 deletions

diff --git a/vendor/github.com/prometheus/procfs/mountstats.go b/vendor/github.com/prometheus/procfs/mountstats.go
index 35b2ef3..861ced9 100644
--- a/vendor/github.com/prometheus/procfs/mountstats.go
+++ b/vendor/github.com/prometheus/procfs/mountstats.go
@@ -186,6 +186,8 @@ type NFSOperationStats struct {
         CumulativeTotalResponseMilliseconds uint64
         // Duration from when a request was enqueued to when it was completely handled.
         CumulativeTotalRequestMilliseconds uint64
+        // The count of operations that complete with tk_status < 0.  These statuses usually indicate error conditions.
+        Errors uint64
 }
 
 // A NFSTransportStats contains statistics for the NFS mount RPC requests and
@@ -494,8 +496,8 @@ func parseNFSEventsStats(ss []string) (*NFSEventsStats, error) {
 // line is reached.
 func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
         const (
-                // Number of expected fields in each per-operation statistics set
-                numFields = 9
+                // Minimum number of expected fields in each per-operation statistics set
+                minFields = 9
         )
 
         var ops []NFSOperationStats
@@ -508,12 +510,12 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
                         break
                 }
 
-                if len(ss) != numFields {
+                if len(ss) < minFields {
                         return nil, fmt.Errorf("invalid NFS per-operations stats: %v", ss)
                 }
 
                 // Skip string operation name for integers
-                ns := make([]uint64, 0, numFields-1)
+                ns := make([]uint64, 0, minFields-1)
                 for _, st := range ss[1:] {
                         n, err := strconv.ParseUint(st, 10, 64)
                         if err != nil {
@@ -523,7 +525,7 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
                         ns = append(ns, n)
                 }
 
-                ops = append(ops, NFSOperationStats{
+                opStats := NFSOperationStats{
                         Operation:                           strings.TrimSuffix(ss[0], ":"),
                         Requests:                            ns[0],
                         Transmissions:                       ns[1],
@@ -533,7 +535,13 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
                         CumulativeQueueMilliseconds:         ns[5],
                         CumulativeTotalResponseMilliseconds: ns[6],
                         CumulativeTotalRequestMilliseconds:  ns[7],
-                })
+                }
+
+                if len(ns) > 8 {
+                        opStats.Errors = ns[8]
+                }
+
+                ops = append(ops, opStats)
         }
 
         return ops, s.Err()