const golang.org/x/sys/unix.SYNC_FILE_RANGE_WRITE

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L3322: 	SYNC_FILE_RANGE_WRITE                       = 0x2

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)