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 AD5C9C433F5 for ; Mon, 6 Dec 2021 18:20:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343904AbhLFSYG (ORCPT ); Mon, 6 Dec 2021 13:24:06 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:23980 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244449AbhLFSYF (ORCPT ); Mon, 6 Dec 2021 13:24:05 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1638814836; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=euSBJV6H7AIayYsx/jymKT22o7jdD83Te73E5T3p9qg=; b=UDJfCI84cFsKO3daNj4Y0qBD6sU1s1+6OaUghMn7rzuiqQqxAFpx9xz3apDn4gkorAJHqs GMNOMWHWfYyx44OpmkhDUVYMe+9wEB+20oE/vaLhV1Unl121KokH86CN2eZkW63OxlKL5O qIkV7GtTupR0OTqYTMOYeWAfbbVCD4A= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-399-WOnjW-EZOYeMrrL_Jn9S6w-1; Mon, 06 Dec 2021 13:20:34 -0500 X-MC-Unique: WOnjW-EZOYeMrrL_Jn9S6w-1 Received: by mail-wm1-f71.google.com with SMTP id 144-20020a1c0496000000b003305ac0e03aso8257244wme.8 for ; Mon, 06 Dec 2021 10:20:34 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=euSBJV6H7AIayYsx/jymKT22o7jdD83Te73E5T3p9qg=; b=5ZbHVAe4ZdRJvl4Of8L+dZsB//mpUHnGOmS9QyXqlfaokVFV9wS/8FmxAvqjGfWRRJ FxPWaWrDf6Kx4hFatizm+8y5OIVXtubkvZv6H6FNmGhEjCLGJcFtnr/owE/ygCGw1SZx czgYmrV9HI+i4awTZs4vjI3Z9vocCPQOafse3HSZUt5Vr/RofH8TrjOX8cbmuJVKYKBO mjh6W3mwPtFsA709+5i8tiuqgDAgIxgp+IH7vo4+XRMkqiAoTIKUVNY/KAEfgPDQPfXi wilr8oDr4wgdt+eIJ5ZScMTkMBN7hLRx5vCwcl3KrSc+a40pRumQv5iKx95XOqmfC/P2 AjyQ== X-Gm-Message-State: AOAM53388dpmdXqgdYWrvC4+0jJ7AK/JlWbMUMTSaQnR+ZCXZRFoF25A E5LoXued3h5CojMxlobriAQ0OwFmwOKJb/mV2GOE/KvbKA7yL7FgjapkBdZiLeqpPx7cMZZHuAE QWQa2diTMMxA2jJD2R3VXWNNk X-Received: by 2002:a7b:c155:: with SMTP id z21mr186881wmi.107.1638814833557; Mon, 06 Dec 2021 10:20:33 -0800 (PST) X-Google-Smtp-Source: ABdhPJyNGUuAeiZEBQ0uQXmueMFz5HGti1shlWq4mMAIfp1iMpGdogEvGrBWREXa04OkWVSqhplTxw== X-Received: by 2002:a7b:c155:: with SMTP id z21mr186854wmi.107.1638814833361; Mon, 06 Dec 2021 10:20:33 -0800 (PST) Received: from krava.redhat.com (nat-pool-brq-u.redhat.com. [213.175.37.12]) by smtp.gmail.com with ESMTPSA id b13sm12459543wrh.32.2021.12.06.10.20.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Dec 2021 10:20:33 -0800 (PST) From: Jiri Olsa X-Google-Original-From: Jiri Olsa To: Steven Rostedt , Ingo Molnar Cc: lkml , Heiko Carstens Subject: [PATCHv2 0/3] ftrace: Add ftrace-direct-multi-modify sample module Date: Mon, 6 Dec 2021 19:20:29 +0100 Message-Id: <20211206182032.87248-1-jolsa@kernel.org> X-Mailer: git-send-email 2.33.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org hi, this patchset adds ftrace-direct-multi-modify.ko kernel module that shows the usage of modify_ftrace_direct_multi API. Plus two additional small fixes for ftrace direct code. v2 changes: - rebased on top of v5.16-rc4 - added s390x trampolines thanks, jirka --- Jiri Olsa (3): ftrace: Use direct_ops hash in unregister_ftrace_direct ftrace: Add cleanup to unregister_ftrace_direct_multi ftrace/samples: Add module to test multi direct modify interface kernel/trace/ftrace.c | 8 +++++- samples/ftrace/Makefile | 1 + samples/ftrace/ftrace-direct-multi-modify.c | 152 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 160 insertions(+), 1 deletion(-) create mode 100644 samples/ftrace/ftrace-direct-multi-modify.c