Klaus Post 74253e1ddc
Fix BackendInfo() race (#18305)
`GetParityForSC` has a value receiver, so Config is copied before the lock is obtained.

Make it pointer receiver.

Fixes:

```
WARNING: DATA RACE
Read at 0x0000079cdd10 by goroutine 190:
  github.com/minio/minio/cmd.(*erasureServerPools).BackendInfo()
      github.com/minio/minio/cmd/erasure-server-pool.go:579 +0x6f
  github.com/minio/minio/cmd.(*erasureServerPools).LocalStorageInfo()
      github.com/minio/minio/cmd/erasure-server-pool.go:614 +0x3c6
  github.com/minio/minio/cmd.(*peerRESTServer).LocalStorageInfoHandler()
      github.com/minio/minio/cmd/peer-rest-server.go:347 +0x4ea
  github.com/minio/minio/cmd.(*peerRESTServer).LocalStorageInfoHandler-fm()
...

WARNING: DATA RACE
Read at 0x0000079cdd10 by goroutine 190:
  github.com/minio/minio/cmd.(*erasureServerPools).BackendInfo()
      github.com/minio/minio/cmd/erasure-server-pool.go:579 +0x6f
  github.com/minio/minio/cmd.(*erasureServerPools).LocalStorageInfo()
      github.com/minio/minio/cmd/erasure-server-pool.go:614 +0x3c6
  github.com/minio/minio/cmd.(*peerRESTServer).LocalStorageInfoHandler()
      github.com/minio/minio/cmd/peer-rest-server.go:347 +0x4ea
  github.com/minio/minio/cmd.(*peerRESTServer).LocalStorageInfoHandler-fm()
```
2023-10-24 08:15:41 -07:00
..