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[79.24.6.4]) by smtp.gmail.com with ESMTPSA id fn3sm2880606ejc.96.2021.06.04.08.31.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 04 Jun 2021 08:31:11 -0700 (PDT) Subject: Re: [PATCH V3 4/9] tracing/hwlat: Implement the per-cpu mode To: Steven Rostedt Cc: linux-kernel@vger.kernel.org, Phil Auld , Sebastian Andrzej Siewior , Kate Carcia , Jonathan Corbet , Ingo Molnar , Peter Zijlstra , Thomas Gleixner , Alexandre Chartre , Clark Willaims , John Kacur , Juri Lelli , linux-doc@vger.kernel.org References: <187db3f9eed1603c858a1f7669d0140dfb753bfd.1621024265.git.bristot@redhat.com> <20210603171758.48da3357@gandalf.local.home> From: Daniel Bristot de Oliveira Message-ID: Date: Fri, 4 Jun 2021 17:31:10 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <20210603171758.48da3357@gandalf.local.home> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org On 6/3/21 11:17 PM, Steven Rostedt wrote: > On Fri, 14 May 2021 22:51:13 +0200 > Daniel Bristot de Oliveira wrote: > >> void trace_hwlat_callback(bool enter) >> { >> - if (smp_processor_id() != nmi_cpu) >> + struct hwlat_kthread_data *kdata = get_cpu_data(); >> + >> + if (kdata->kthread) > > Shouldn't that be: > > if (!kdata->kthread) oops! Fixing in v4. -- Daniel > ? > > -- Steve > >> return; >> >> /* >> @@ -158,13 +173,13 @@ void trace_hwlat_callback(bool enter) >> */ >> if (!IS_ENABLED(CONFIG_GENERIC_SCHED_CLOCK)) { >> if (enter) >> - nmi_ts_start = time_get(); >> + kdata->nmi_ts_start = time_get(); >> else >> - nmi_total_ts += time_get() - nmi_ts_start; >> + kdata->nmi_total_ts += time_get() - kdata->nmi_ts_start; >> } >> >> if (enter) >> - nmi_count++; >> + kdata->nmi_count++; >> } >> >