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Message-ID: <718febc4-59ee-4701-ad62-8b7a8fa7a910@csgroup.eu>
Date: Sat, 16 Nov 2024 11:10:52 +0100
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: Easwar Hariharan <eahariha@...ux.microsoft.com>,
Pablo Neira Ayuso <pablo@...filter.org>,
Jozsef Kadlecsik <kadlec@...filter.org>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Simon Horman <horms@...nel.org>, Julia Lawall <Julia.Lawall@...ia.fr>,
Nicolas Palix <nicolas.palix@...g.fr>, Daniel Mack <daniel@...que.org>,
Haojian Zhuang <haojian.zhuang@...il.com>,
Robert Jarzmik <robert.jarzmik@...e.fr>, Russell King
<linux@...linux.org.uk>, Heiko Carstens <hca@...ux.ibm.com>,
Vasily Gorbik <gor@...ux.ibm.com>, Alexander Gordeev
<agordeev@...ux.ibm.com>, Christian Borntraeger <borntraeger@...ux.ibm.com>,
Sven Schnelle <svens@...ux.ibm.com>, Ofir Bitton <obitton@...ana.ai>,
Oded Gabbay <ogabbay@...nel.org>, Lucas De Marchi
<lucas.demarchi@...el.com>,
Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Jeroen de Borst <jeroendb@...gle.com>,
Praveen Kaligineedi <pkaligineedi@...gle.com>,
Shailend Chand <shailend@...gle.com>, Andrew Lunn <andrew+netdev@...n.ch>,
James Smart <james.smart@...adcom.com>,
Dick Kennedy <dick.kennedy@...adcom.com>,
"James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Roger Pau Monné <roger.pau@...rix.com>,
Jens Axboe <axboe@...nel.dk>, Kalle Valo <kvalo@...nel.org>,
Jeff Johnson <jjohnson@...nel.org>, Catalin Marinas
<catalin.marinas@....com>, Andrew Morton <akpm@...ux-foundation.org>,
Jack Wang <jinpu.wang@...ud.ionos.com>, Marcel Holtmann
<marcel@...tmann.org>, Johan Hedberg <johan.hedberg@...il.com>,
Luiz Augusto von Dentz <luiz.dentz@...il.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Florian Fainelli <florian.fainelli@...adcom.com>, Ray Jui
<rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@...adcom.com>, Xiubo Li <xiubli@...hat.com>,
Ilya Dryomov <idryomov@...il.com>, Josh Poimboeuf <jpoimboe@...nel.org>,
Jiri Kosina <jikos@...nel.org>, Miroslav Benes <mbenes@...e.cz>,
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Lucas Stach <l.stach@...gutronix.de>,
Russell King <linux+etnaviv@...linux.org.uk>,
Christian Gmeiner <christian.gmeiner@...il.com>,
Louis Peens <louis.peens@...igine.com>, Michael Ellerman
<mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>,
Naveen N Rao <naveen@...nel.org>, Madhavan Srinivasan <maddy@...ux.ibm.com>
Cc: netfilter-devel@...r.kernel.org, coreteam@...filter.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org, cocci@...ia.fr,
linux-arm-kernel@...ts.infradead.org, linux-s390@...r.kernel.org,
dri-devel@...ts.freedesktop.org, intel-xe@...ts.freedesktop.org,
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live-patching@...r.kernel.org, linux-sound@...r.kernel.org,
etnaviv@...ts.freedesktop.org, oss-drivers@...igine.com,
linuxppc-dev@...ts.ozlabs.org, Anna-Maria Behnsen <anna-maria@...utronix.de>
Subject: Re: [PATCH v2 19/21] livepatch: Convert timeouts to secs_to_jiffies()
Le 15/11/2024 à 22:26, Easwar Hariharan a écrit :
> [Vous ne recevez pas souvent de courriers de eahariha@...ux.microsoft.com. Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSenderIdentification ]
>
> Changes made with the following Coccinelle rules:
>
> @@ constant C; @@
>
> - msecs_to_jiffies(C * 1000)
> + secs_to_jiffies(C)
>
> @@ constant C; @@
>
> - msecs_to_jiffies(C * MSEC_PER_SEC)
> + secs_to_jiffies(C)
>
> Signed-off-by: Easwar Hariharan <eahariha@...ux.microsoft.com>
> ---
> samples/livepatch/livepatch-callbacks-busymod.c | 2 +-
> samples/livepatch/livepatch-shadow-fix1.c | 2 +-
> samples/livepatch/livepatch-shadow-mod.c | 10 +++++-----
> 3 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/samples/livepatch/livepatch-callbacks-busymod.c b/samples/livepatch/livepatch-callbacks-busymod.c
> index 378e2d40271a9717d09eff51d3d3612c679736fc..d0fd801a7c21b7d7939c29d83f9d993badcc9aba 100644
> --- a/samples/livepatch/livepatch-callbacks-busymod.c
> +++ b/samples/livepatch/livepatch-callbacks-busymod.c
> @@ -45,7 +45,7 @@ static int livepatch_callbacks_mod_init(void)
> {
> pr_info("%s\n", __func__);
> schedule_delayed_work(&work,
> - msecs_to_jiffies(1000 * 0));
> + secs_to_jiffies(0));
Using secs_to_jiffies() is pointless, 0 is universal, should become
schedule_delayed_work(&work, 0);
> return 0;
> }
>
> diff --git a/samples/livepatch/livepatch-shadow-fix1.c b/samples/livepatch/livepatch-shadow-fix1.c
> index 6701641bf12d454a770e49abeeb0dea92560e55e..948ea1f5760fed2fa27baf478c97cf98ad5c99a8 100644
> --- a/samples/livepatch/livepatch-shadow-fix1.c
> +++ b/samples/livepatch/livepatch-shadow-fix1.c
> @@ -73,7 +73,7 @@ static struct dummy *livepatch_fix1_dummy_alloc(void)
> return NULL;
>
> d->jiffies_expire = jiffies +
> - msecs_to_jiffies(1000 * EXPIRE_PERIOD);
> + secs_to_jiffies(EXPIRE_PERIOD);
>
> /*
> * Patch: save the extra memory location into a SV_LEAK shadow
> diff --git a/samples/livepatch/livepatch-shadow-mod.c b/samples/livepatch/livepatch-shadow-mod.c
> index 7e753b0d2fa611524c9e2adbe02c8fa3e9b6015e..79296e6ccb119f521e86a121623855d841c9fc5e 100644
> --- a/samples/livepatch/livepatch-shadow-mod.c
> +++ b/samples/livepatch/livepatch-shadow-mod.c
> @@ -102,7 +102,7 @@ static __used noinline struct dummy *dummy_alloc(void)
> return NULL;
>
> d->jiffies_expire = jiffies +
> - msecs_to_jiffies(1000 * EXPIRE_PERIOD);
> + secs_to_jiffies(EXPIRE_PERIOD);
Should fit on a single line, avoid multiple lines when possible.
>
> /* Oops, forgot to save leak! */
> leak = kzalloc(sizeof(*leak), GFP_KERNEL);
> @@ -153,7 +153,7 @@ static void alloc_work_func(struct work_struct *work)
> mutex_unlock(&dummy_list_mutex);
>
> schedule_delayed_work(&alloc_dwork,
> - msecs_to_jiffies(1000 * ALLOC_PERIOD));
> + secs_to_jiffies(ALLOC_PERIOD));
Should fit on a single line, avoid multiple lines when possible.
> }
>
> /*
> @@ -185,15 +185,15 @@ static void cleanup_work_func(struct work_struct *work)
> mutex_unlock(&dummy_list_mutex);
>
> schedule_delayed_work(&cleanup_dwork,
> - msecs_to_jiffies(1000 * CLEANUP_PERIOD));
> + secs_to_jiffies(CLEANUP_PERIOD));
Should fit on a single line, avoid multiple lines when possible.
> }
>
> static int livepatch_shadow_mod_init(void)
> {
> schedule_delayed_work(&alloc_dwork,
> - msecs_to_jiffies(1000 * ALLOC_PERIOD));
> + secs_to_jiffies(ALLOC_PERIOD));
Should fit on a single line, avoid multiple lines when possible.
> schedule_delayed_work(&cleanup_dwork,
> - msecs_to_jiffies(1000 * CLEANUP_PERIOD));
> + secs_to_jiffies(CLEANUP_PERIOD));
Should fit on a single line, avoid multiple lines when possible.
>
> return 0;
> }
>
> --
> 2.34.1
>
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