From nobody Wed Sep 17 01:07:40 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71C82C4167B for ; Tue, 27 Dec 2022 12:15:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232292AbiL0MPS (ORCPT ); Tue, 27 Dec 2022 07:15:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53244 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232047AbiL0MOj (ORCPT ); Tue, 27 Dec 2022 07:14:39 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68CCADFF; Tue, 27 Dec 2022 04:13:52 -0800 (PST) Date: Tue, 27 Dec 2022 12:13:49 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1672143229; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=368eU1mZ65Uq85cJsmJl+WRGtJcEnaYUkhUke21f2Pg=; b=m2N/wkY7531/5bBoAzjxqCeRd5w//uCmI0Nq2KRtCqTP4zd2lNuL9ffpfetBJsVaVOjyTe A8cmfHC0b+HbnYaIDww3smy+khFukbCrSmsSiru1BmkULcVyYnXKxGFP+76xiT98aA//Kb ZvmROY70eDwxxjclI80EvXFviXmFbjRaI9JMUOssm4Mt9S+Bxe9awZu3Oj7QRr9zVzK69j M/nyRDLJ5DuEHLOs0bc8AOllzjxdCGfpN7S6BnPZJPdDlsltmo1rcDT8gTu6sogeEZ5wph 6DRU3Jigo83jIANgPApKfxbrVGWtVe6D4RuawK1Aws4h3Wt9MyMQqvGJkSmmJQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1672143229; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=368eU1mZ65Uq85cJsmJl+WRGtJcEnaYUkhUke21f2Pg=; b=pBPHhGNA48MocS4bS/bKoTGmXnjlfYbp96FecDv+o01eKz6/n0guclYMR+U0AC04aNmOeB 0NP1lvWcf3sl1ZDw== From: "tip-bot2 for Mathieu Desnoyers" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: sched/core] tracing/rseq: Add mm_cid field to rseq_update Cc: Mathieu Desnoyers , "Peter Zijlstra (Intel)" , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20221122203932.231377-22-mathieu.desnoyers@efficios.com> References: <20221122203932.231377-22-mathieu.desnoyers@efficios.com> MIME-Version: 1.0 Message-ID: <167214322913.4906.16315668635920081365.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the sched/core branch of tip: Commit-ID: 14a8644d4f76fb4afdfcc46e9193af867241bd42 Gitweb: https://git.kernel.org/tip/14a8644d4f76fb4afdfcc46e9193af867= 241bd42 Author: Mathieu Desnoyers AuthorDate: Tue, 22 Nov 2022 15:39:23 -05:00 Committer: Peter Zijlstra CommitterDate: Tue, 27 Dec 2022 12:52:15 +01:00 tracing/rseq: Add mm_cid field to rseq_update Add the mm_cid field to the rseq_update event, allowing tracers to follow which mm_cid is observed by user-space, and whether negative mm_cid values are visible in case of internal scheduler implementation issues. Signed-off-by: Mathieu Desnoyers Signed-off-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/20221122203932.231377-22-mathieu.desnoyers@= efficios.com --- include/trace/events/rseq.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/trace/events/rseq.h b/include/trace/events/rseq.h index dde7a35..823b47d 100644 --- a/include/trace/events/rseq.h +++ b/include/trace/events/rseq.h @@ -17,14 +17,17 @@ TRACE_EVENT(rseq_update, TP_STRUCT__entry( __field(s32, cpu_id) __field(s32, node_id) + __field(s32, mm_cid) ), =20 TP_fast_assign( __entry->cpu_id =3D raw_smp_processor_id(); __entry->node_id =3D cpu_to_node(__entry->cpu_id); + __entry->mm_cid =3D task_mm_cid(t); ), =20 - TP_printk("cpu_id=3D%d node_id=3D%d", __entry->cpu_id, __entry->node_id) + TP_printk("cpu_id=3D%d node_id=3D%d mm_cid=3D%d", __entry->cpu_id, + __entry->node_id, __entry->mm_cid) ); =20 TRACE_EVENT(rseq_ip_fixup,