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

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L1183: 	FALLOC_FL_PUNCH_HOLE                        = 0x2

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