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

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L1261: 	PERF_TXN_CAPACITY_WRITE               = 0x40

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