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Date:   Thu, 16 Sep 2021 15:54:32 -0300
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Subject: Re: [PATCH 16/20] futex: Implement sys_futex_waitv()
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To:     Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>
Cc:     dave@stgolabs.net, libc-alpha@sourceware.org, dvhart@infradead.org,
        mingo@redhat.com, Paul Eggert <eggert@cs.ucla.edu>,
        linux-api@vger.kernel.org, linux-kernel@vger.kernel.org,
        mtk.manpages@gmail.com, kernel@collabora.com,
        krisman@collabora.com, rostedt@goodmis.org, bigeasy@linutronix.de,
        Arnd Bergmann <arnd@arndb.de>
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Às 11:49 de 16/09/21, Thomas Gleixner escreveu:
> On Wed, Sep 15 2021 at 10:34, Paul Eggert wrote:
> 
>> On 9/15/21 8:37 AM, Peter Zijlstra wrote:
>>> I utterly detest timespec.. it makes no sense what so ever.
>>>
>>> Can't we just, for new syscalls, simply use a s64 nsec argument and call
>>> it a day?
>>
>> This would stop working in the year 2262. Not a good idea.
> 
> Make it u64 and it stops in 2552, i.e. 584 years from now which is
> plenty. Lot's of the kernel internal timekeeping will stop working at
> that point, so that interface is the least of my worries. And TBH, my
> worries about the Y2552 problem are extremly close to zero.
> 

What do we win by using u64 instead of timespec?

Or what's so bad about timespec?