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

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux_amd64.go#L33: 	BLKDISCARDZEROES                 = 0x127c

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