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Thu, 31 Jul 2025 02:04:46 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFcyvCOcWpMoydPfhIGcE6BmPHyVSaaAWvBnHj4Nb20j+gkWmRYUb+Jbh+3IQ2C1Hevzf9Pjg== X-Received: by 2002:a05:600c:3490:b0:456:26a1:a0c1 with SMTP id 5b1f17b1804b1-45894ca4e2bmr49608735e9.17.1753952686145; Thu, 31 Jul 2025 02:04:46 -0700 (PDT) Received: from gmonaco-thinkpadt14gen3.rmtit.csb ([185.107.56.40]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-458953f8e02sm55775935e9.32.2025.07.31.02.04.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Jul 2025 02:04:45 -0700 (PDT) Message-ID: Subject: Re: [PATCH 1/5] rv/ltl: Prepare for other monitor types From: Gabriele Monaco To: Nam Cao Cc: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org Date: Thu, 31 Jul 2025 11:04:44 +0200 In-Reply-To: <0d13c61bc6e0dc82108995c9a1d140bad4082039.1753879295.git.namcao@linutronix.de> References: <0d13c61bc6e0dc82108995c9a1d140bad4082039.1753879295.git.namcao@linutronix.de> Autocrypt: addr=gmonaco@redhat.com; prefer-encrypt=mutual; keydata=mDMEZuK5YxYJKwYBBAHaRw8BAQdAmJ3dM9Sz6/Hodu33Qrf8QH2bNeNbOikqYtxWFLVm0 1a0JEdhYnJpZWxlIE1vbmFjbyA8Z21vbmFjb0ByZWRoYXQuY29tPoiZBBMWCgBBFiEEysoR+AuB3R Zwp6j270psSVh4TfIFAmbiuWMCGwMFCQWjmoAFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcCF4AACgk Q70psSVh4TfJzZgD/TXjnqCyqaZH/Y2w+YVbvm93WX2eqBqiVZ6VEjTuGNs8A/iPrKbzdWC7AicnK xyhmqeUWOzFx5P43S1E1dhsrLWgP Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 (3.56.2-1.fc42) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Wed, 2025-07-30 at 14:45 +0200, Nam Cao wrote: > rv/ltl_monitor.h is the template file used by all LTL monitors. But > only per-task monitor is supported. >=20 > No functional change intended. >=20 > Signed-off-by: Nam Cao > --- > =C2=A0include/linux/rv.h=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 |=C2=A0 1 + > =C2=A0include/rv/ltl_monitor.h=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0 | 85 +++++++++++------ > -- > =C2=A0.../trace/rv/monitors/pagefault/pagefault.h=C2=A0=C2=A0 |=C2=A0 2 + > =C2=A0kernel/trace/rv/monitors/sleep/sleep.h=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0 |=C2=A0 2 + > =C2=A04 files changed, 55 insertions(+), 35 deletions(-) >=20 > diff --git a/include/linux/rv.h b/include/linux/rv.h > index 14410a42faef..175438a22641 100644 > --- a/include/linux/rv.h > +++ b/include/linux/rv.h > @@ -28,6 +28,7 @@ struct da_monitor { > =C2=A0 > =C2=A0#ifdef CONFIG_RV_LTL_MONITOR > =C2=A0 > +#define LTL_TASK_MONITOR 0 I stole your solution to get rid of macros for the DA as well (might post it after this merge window or with the next changes) and I'm currently running with this: diff --git a/include/linux/rv.h b/include/linux/rv.h index 14410a42faef..6a7594080db1 100644 --- a/include/linux/rv.h +++ b/include/linux/rv.h @@ -13,6 +13,10 @@ #define MAX_DA_NAME_LEN 32 #define MAX_DA_RETRY_RACING_EVENTS 3 =20 +#define RV_MON_GLOBAL 0 +#define RV_MON_PER_CPU 1 +#define RV_MON_PER_TASK 2 + The numbers don't really matter and you don't need to implement all, of course. I'm not sure how are our patches going to coordinate, but I think it may make sense to share those values for all monitor types. What do you think? For the rest this patch looks good to me, nice use of the typedef. Reviewed-by: Gabriele Monaco Thanks, Gabriele