Fixed the lookUpOrCreateInode interface.
Fixed the lookUpOrCreateInode interface.

kahing/gcsfuse,jacobsa/ratelimit,GoogleCloudPlatform/gcsfuse,mbrukman/gcsfuse,jacobsa/timeutil,GoogleCloudPlatform/gcsfuse,GoogleCloudPlatform/gcsfuse,BanzaiMan/gcsfuse,BanzaiMan/gcsfuse