gvisor: lockless read access for task credentials

Credentials are immutable and even before these changes we could read them
without locks, but we needed to take a task lock to get a credential object
from a task object.

It is possible to avoid this lock, if we will guarantee that a credential
object will not be changed after setting it on a task.

PiperOrigin-RevId: 254989492

1 files changed, 5 insertions, 1 deletions

diff --git a/tools/go_generics/generics.go b/tools/go_generics/generics.go
index 4e5cc53a2..22c714c13 100644
--- a/tools/go_generics/generics.go
+++ b/tools/go_generics/generics.go
@@ -222,7 +222,11 @@ func main() {
 				// Modify the state tag appropriately.
 				if m := stateTagRegexp.FindStringSubmatch(ident.Name); m != nil {
 					if t := identifierRegexp.FindStringSubmatch(m[2]); t != nil {
-						ident.Name = m[1] + `state:".(` + t[1] + *prefix + t[2] + *suffix + t[3] + `)"` + m[3]
+						typeName := *prefix + t[2] + *suffix
+						if n, ok := types[t[2]]; ok {
+							typeName = n
+						}
+						ident.Name = m[1] + `state:".(` + t[1] + typeName + t[3] + `)"` + m[3]
 					}
 				}
 			}