From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 19E68190473 for ; Wed, 7 Jan 2026 02:17:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767752264; cv=none; b=iCVJ4PjM7jiuCxeDeJ9vwjZb8YZHgCnkLN4ZSq9OT5NS5zJTvOjt9m6dr39bAlnE4C4Pn0vcFsExTZ8ygGp24Rf20P4CQSy3wpmpe2BvyrTKRQ5oGVSp06oMZto7zqyzyT3D7YLelGBysXq2Nm4p+JyojfeJYrqUG97R4k+S/p4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767752264; c=relaxed/simple; bh=iQrU/hmOjEOvQYI5LD85WfwqJMg0nJSQ639lZOkOb4s=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=VwR8Yp54aPUqUBfCwE3ndjAZ1fGMX5GvI21TRWknG+CDp51DYx0Ea9v0aRHyDewwDW9VWQYd0mhySfoNGZTyPJAcnjEnqrxv3DEOYjGot+0cRkdAzip0QnTS2qr8YYrbyaexdl0KgFVdgW0PbJ3xB0YOyDg3txmlmizuMlJSHcw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=hVQzAGd+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="hVQzAGd+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 11308C116C6; Wed, 7 Jan 2026 02:17:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1767752263; bh=iQrU/hmOjEOvQYI5LD85WfwqJMg0nJSQ639lZOkOb4s=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=hVQzAGd+H2ptGMJHZz8I8iIbYdQ7PNqIM/RsVFPYwaknc0NvNCXK9M5Vxp3viN7Ks 6PsLuVVIXuO4tm18SH3HVPtEVbSn2vYQ5xGcJ/OcGUiSnKQhdOLkQW+132VARgRZWG HhIyB5eFmhSwcFXnwBbDngqr7rTC366kZALWTBCQ= Date: Tue, 6 Jan 2026 18:17:42 -0800 From: Andrew Morton To: Harry Yoo Cc: Thomas Ballasi , linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, mhiramat@kernel.org, rostedt@goodmis.org Subject: Re: build error on CONFIG_MEMCG=n "error: invalid use of undefined type 'struct mem_cgroup'" Message-Id: <20260106181742.5d55894e50139fd7d64f6dcd@linux-foundation.org> In-Reply-To: References: <20251216140252.11864-1-tballasi@linux.microsoft.com> <20260105160423.23708-1-tballasi@linux.microsoft.com> <20260105160423.23708-2-tballasi@linux.microsoft.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 7 Jan 2026 10:56:46 +0900 Harry Yoo wrote: > > --- a/include/trace/events/vmscan.h > > +++ b/include/trace/events/vmscan.h > > @@ -208,31 +215,34 @@ TRACE_EVENT(mm_shrink_slab_start, > > TP_fast_assign( > > __entry->shr = shr; > > __entry->shrink = shr->scan_objects; > > - __entry->nid = sc->nid; > > __entry->nr_objects_to_shrink = nr_objects_to_shrink; > > __entry->gfp_flags = (__force unsigned long)sc->gfp_mask; > > __entry->cache_items = cache_items; > > __entry->delta = delta; > > __entry->total_scan = total_scan; > > __entry->priority = priority; > > + __entry->nid = sc->nid; > > + __entry->memcg_id = sc->memcg ? cgroup_id(sc->memcg->css.cgroup) : 0; > > Hi Thomas, this is breaking CONFIG_MEMCG=n builds. yup, thanks, that series has been removed from mm.git.