From bc156266c6a653a6d6071a73a3f1cca6131b285d Mon Sep 17 00:00:00 2001
From: rhodes-b <59537185+rhodes-b@users.noreply.github.com>
Date: Sun, 2 Feb 2025 16:27:10 -0600
Subject: [PATCH 1/2] fix errno handle

---
 src/os/cgroup.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/os/cgroup.zig b/src/os/cgroup.zig
index bef101acc..095c90aa3 100644
--- a/src/os/cgroup.zig
+++ b/src/os/cgroup.zig
@@ -130,7 +130,7 @@ pub fn cloneInto(cgroup: []const u8) !posix.pid_t {
     };
 
     const rc = linux.syscall2(linux.SYS.clone3, @intFromPtr(&args), @sizeOf(@TypeOf(args)));
-    return switch (posix.errno(rc)) {
+    return switch (std.os.linux.E.init(rc)) {
         .SUCCESS => @as(posix.pid_t, @intCast(rc)),
         else => |errno| err: {
             log.err("unable to clone: {}", .{errno});

From fb2516fbf68a171ffd3223cc46ffb423518bed90 Mon Sep 17 00:00:00 2001
From: rhodes-b <59537185+rhodes-b@users.noreply.github.com>
Date: Sun, 2 Feb 2025 16:35:20 -0600
Subject: [PATCH 2/2] comment on why to not use posix.errno

---
 src/os/cgroup.zig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/os/cgroup.zig b/src/os/cgroup.zig
index 095c90aa3..d94a4a728 100644
--- a/src/os/cgroup.zig
+++ b/src/os/cgroup.zig
@@ -130,6 +130,7 @@ pub fn cloneInto(cgroup: []const u8) !posix.pid_t {
     };
 
     const rc = linux.syscall2(linux.SYS.clone3, @intFromPtr(&args), @sizeOf(@TypeOf(args)));
+    // do not use posix.errno, when linking libc it will use the libc errno which will not be set when making the syscall directly
     return switch (std.os.linux.E.init(rc)) {
         .SUCCESS => @as(posix.pid_t, @intCast(rc)),
         else => |errno| err: {