From: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
To: Mathieu Desnoyers
<mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
Cc: Paul Turner <pjt-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Andrew Hunter <ahh-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
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"Paul E. McKenney"
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Linus Torvalds
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Michael Kerrisk
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Subject: Re: [RFC PATCH v2 1/3] getcpu_cache system call: cache CPU number of running thread
Date: Wed, 27 Jan 2016 18:34:59 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.11.1601271832330.3886@nanos> (raw)
In-Reply-To: <671969438.6129.1453915918933.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
On Wed, 27 Jan 2016, Mathieu Desnoyers wrote:
> ----- On Jan 27, 2016, at 12:22 PM, Thomas Gleixner tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org wrote:
> Sounds fair. What is the recommended typing for "ptr" then ?
> uint32_t ** or uint32_t * ?
>
> It would be expected to pass a "uint32_t *" for the set
> operation, but the "get" operation requires a "uint32_t **".
Well, you can't change the types depending on the opcode, so you need to stick
with **.
> Also, I'd be tempted to put the GET/SET operation selector as
> a first parameter.
Makes sense.
Thanks,
tglx
next prev parent reply other threads:[~2016-01-27 17:34 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-27 16:54 [RFC PATCH v2 0/3] getcpu_cache system call Mathieu Desnoyers
2016-01-27 16:54 ` [RFC PATCH v2 1/3] getcpu_cache system call: cache CPU number of running thread Mathieu Desnoyers
[not found] ` <1453913683-28915-2-git-send-email-mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2016-01-27 17:20 ` Josh Triplett
2016-01-27 17:24 ` Thomas Gleixner
2016-01-27 17:36 ` Mathieu Desnoyers
[not found] ` <2049061625.6140.1453916208296.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2016-01-27 18:02 ` Andrew Hunter
2016-01-27 18:03 ` Josh Triplett
2016-01-27 18:43 ` Mathieu Desnoyers
2016-01-27 19:16 ` Josh Triplett
2016-01-27 21:02 ` Mathieu Desnoyers
[not found] ` <2037701859.6303.1453928564519.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2016-01-27 21:30 ` Josh Triplett
2016-01-27 17:22 ` Thomas Gleixner
2016-01-27 17:31 ` Mathieu Desnoyers
[not found] ` <671969438.6129.1453915918933.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2016-01-27 17:34 ` Thomas Gleixner [this message]
2016-01-27 17:37 ` Thomas Gleixner
2016-01-27 21:34 ` Mathieu Desnoyers
[not found] ` <974364259.6329.1453930475174.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2016-01-27 22:11 ` Josh Triplett
2016-01-27 22:47 ` Mathieu Desnoyers
[not found] ` <75735238.6347.1453934857246.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2016-01-28 11:12 ` Heiko Carstens
2016-01-28 13:33 ` Mathieu Desnoyers
2016-01-28 3:12 ` Alexei Starovoitov
[not found] ` <20160128031213.GA55682-+o4/htvd0TDFYCXBM6kdu7fOX0fSgVTm@public.gmane.org>
2016-01-28 17:41 ` Mathieu Desnoyers
2016-01-27 16:54 ` [RFC PATCH v2 2/3] getcpu_cache: wire up ARM system call Mathieu Desnoyers
[not found] ` <1453913683-28915-3-git-send-email-mathieu.desnoyers-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2016-01-27 18:19 ` Russell King - ARM Linux
[not found] ` <20160127181915.GA10826-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2016-01-27 18:46 ` Mathieu Desnoyers
[not found] ` <1011987684.6168.1453920399905.JavaMail.zimbra-vg+e7yoeK/dWk0Htik3J/w@public.gmane.org>
2016-01-27 23:03 ` Mathieu Desnoyers
2016-01-27 16:54 ` [RFC PATCH v2 3/3] getcpu_cache: wire up x86 32/64 " Mathieu Desnoyers
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