Re: [PATCH v2 19/21] livepatch: Convert timeouts to secs_to_jiffies()

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On Mon 2024-11-18 10:18:49, Easwar Hariharan wrote:
> On 11/18/2024 3:06 AM, Petr Mladek wrote:
> > On Sat 2024-11-16 11:10:52, Christophe Leroy wrote:
> >>
> >>
> >> Le 15/11/2024 à 22:26, Easwar Hariharan a écrit :
> >>> [Vous ne recevez pas souvent de courriers de eahariha@xxxxxxxxxxxxxxxxxxx. 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@xxxxxxxxxxxxxxxxxxx>
> >>> ---
> >>>   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);
> > 
> > Yes, schedule_delayed_work(&work, 0) looks like the right solution.
> > 
> > Or even better, it seems that the delayed work might get replaced by
> > a normal workqueue work.
> > 
> > Anyway, I am working on a patchset which would remove this sample
> > module. There is no need to put much effort into the clean up
> > of this particular module. Do whatever is easiest for you.
> > 
> > Best Regards,
> > Petr
> 
> If we're removing the module, I'll drop it from the series. Just to
> clarify, do you mean to remove all of samples/livepatch/* or some
> particular file(s)?

To be precise, I am going to replace:

	samples/livepatch/livepatch-callbacks-demo.c
	samples/livepatch/livepatch-callbacks-mod.c
	samples/livepatch/livepatch-callbacks-busymod.c

with a completely different modules because I am reworking the
callbacks API.

All other sample modules are going to stay.

Feel free to remove livepatch-callbacks-busymod.c from the patchset.
But also feel free to keep it. The API rework goes slowly. I am not
sure if it would be ready for 6.14.

Best Regards,
Petr




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