os/bluestore: do not core dump when BlueRocksEnv gets EEXIST error

in `rocksdb::repairdb`, rocksdb needs create a directory `lost` to archive all files.
we will get a EEXIST error when there is a `lost` directory already.

Fixes: http://tracker.ceph.com/issues/20871
Signed-off-by: liuchang0812 <liuchang0812@gmail.com>

diff --git a/src/os/bluestore/BlueRocksEnv.cc b/src/os/bluestore/BlueRocksEnv.cc
index 34e8a2fea0b8eb30e67a92f907063e015d31c34a..a78f2f1e9e0264bcb8c635bc5f215c55aae489c0 100644 (file)
--- a/src/os/bluestore/BlueRocksEnv.cc
+++ b/src/os/bluestore/BlueRocksEnv.cc
@@ -16,6 +16,7 @@ rocksdb::Status err_to_status(int r)
   case -EINVAL:
     return rocksdb::Status::InvalidArgument(rocksdb::Status::kNone);
   case -EIO:
+  case -EEXIST:
     return rocksdb::Status::IOError(rocksdb::Status::kNone);
   default:
     // FIXME :(