From 9d34fc5108d91bfcce3c465069dbb2c563af4229 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Thu, 3 Mar 2022 10:19:07 +0100 Subject: runtime: remove fallback to pipe on platforms with pipe2 On Linux, the minimum required kernel version for Go 1.18 was be changed to 2.6.32, see #45964. The pipe2 syscall was added in 2.6.27. All other platforms already provide the pipe2 syscall in the minimum supported version: - DragonFly BSD added it in version 4.2, see https://www.dragonflybsd.org/release42/ - FreeBSD added it in version 10.0, see https://www.freebsd.org/cgi/man.cgi?pipe(2)#end - NetBSD added it in version 6.0, see https://man.netbsd.org/pipe2.2#HISTORY - OpenBSD added it in version 5.7, see https://man.openbsd.org/pipe.2#HISTORY - Illumos supports it since 2013, see https://www.illumos.org/issues/3714 - Solaris supports it since 11.4 This also allows to remove setNonblock which was only used in the pipe fallback path on these platforms. Change-Id: I1f40d32fd3065d74e22af77b9ff2292b9cf66706 Reviewed-on: https://go-review.googlesource.com/c/go/+/389354 Trust: Tobias Klauser Run-TryBot: Tobias Klauser TryBot-Result: Gopher Robot Reviewed-by: Ian Lance Taylor --- src/runtime/os_linux.go | 2 -- 1 file changed, 2 deletions(-) (limited to 'src/runtime/os_linux.go') diff --git a/src/runtime/os_linux.go b/src/runtime/os_linux.go index eb8aa076e9..efb54ff20e 100644 --- a/src/runtime/os_linux.go +++ b/src/runtime/os_linux.go @@ -446,9 +446,7 @@ func osyield_no_g() { osyield() } -func pipe() (r, w int32, errno int32) func pipe2(flags int32) (r, w int32, errno int32) -func setNonblock(fd int32) const ( _si_max_size = 128 -- cgit v1.3-5-g9baa