Fix concurrent map access.

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
2017-05-24 16:58:04 +05:30 · 2017-05-24 16:58:04 +05:30 · c211ec4f49
parent bacb143b7e
commit c211ec4f49
1 changed files with 3 additions and 0 deletions
--- a/head.go
+++ b/head.go
@ -260,9 +260,12 @@ Outer:
 		return err
 	}

+	// Map is accessed in other places also, so protect it.
+	h.mtx.Lock()
 	for k, v := range newStones {
 		h.tombstones[k] = h.tombstones[k].add(v[0])
 	}
+	h.mtx.Unlock()

 	h.meta.NumTombstones = int64(len(h.tombstones))
 	return nil