IoUring: use typed Flags and start syncing with liburing 2.12

CMakeLists.txt

@@ -475,7 +475,6 @@ set(ZIG_STAGE2_SOURCES
     lib/std/os/linux.zig
     lib/std/os/linux.zig
     lib/std/os/linux/IoUring.zig
-    lib/std/os/linux/io_uring_sqe.zig
     lib/std/os/linux/x86_64.zig
     lib/std/os/linux/x86_64.zig
     lib/std/os/windows.zig

lib/std/fs.zig

@@ -224,7 +224,7 @@ pub fn cwd() Dir {
     } else if (native_os == .wasi) {
         return .{ .fd = std.options.wasiCwd() };
     } else {
-        return .{ .fd = posix.AT.FDCWD };
+        return .{ .fd = posix.AT.fdcwd };
     }
 }
 

lib/std/fs/Dir.zig

@@ -2812,8 +2812,14 @@ pub fn statFile(self: Dir, sub_path: []const u8) StatFileError!Stat {
         const rc = linux.statx(
             self.fd,
             &sub_path_c,
-            linux.AT.NO_AUTOMOUNT,
-            linux.STATX_TYPE | linux.STATX_MODE | linux.STATX_ATIME | linux.STATX_MTIME | linux.STATX_CTIME,
+            .{ .no_automount = true },
+            .{
+                .type = true,
+                .mode = true,
+                .atime = true,
+                .mtime = true,
+                .ctime = true,
+            },
             &stx,
         );
 

lib/std/fs/File.zig

@@ -564,8 +564,14 @@ pub fn stat(self: File) StatError!Stat {
         const rc = linux.statx(
             self.handle,
             "",
-            linux.AT.EMPTY_PATH,
-            linux.STATX_TYPE | linux.STATX_MODE | linux.STATX_ATIME | linux.STATX_MTIME | linux.STATX_CTIME,
+            .{ .empty_path = true },
+            .{
+                .type = true,
+                .mode = true,
+                .atime = true,
+                .mtime = true,
+                .ctime = true,
+            },
             &stx,
         );