FS_VOLUME_CAPABILITY_SYNC
CLEAR_UNSUPPORTED(FS_VOLUME_CAPABILITY_SYNC, sync);
if (!HasCapability(FS_VOLUME_CAPABILITY_SYNC))
fVolumeCapabilities.Set(FS_VOLUME_CAPABILITY_SYNC, fFSOps->sync);
fVolumeCapabilities.Set(FS_VOLUME_CAPABILITY_SYNC, fLowLevelOps.fsync);
fVolumeCapabilities.Set(FS_VOLUME_CAPABILITY_SYNC, fFS->ops.fsync);
fCapabilities.Set(FS_VOLUME_CAPABILITY_SYNC, fVolume.ops->sync);