* Re: Aw: Re: Revised futex(2) man page for review
[not found] <trinity-4b369924-3445-4e0e-a00e-95d87f708bd5-1438062240689@msvc-mesg-gmx003>
@ 2015-07-28 6:50 ` Davidlohr Bueso
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From: Davidlohr Bueso @ 2015-07-28 6:50 UTC (permalink / raw)
To: Heinrich Schuchardt
Cc: Michael Kerrisk (man-pages), Peter Zijlstra, Thomas Gleixner,
Darren Hart, Carlos O'Donell, Ingo Molnar, Jakub Jelinek,
linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, lkml,
Arnd Bergmann, Steven Rostedt, Linux API, Torvald Riegel,
Roland McGrath, Darren Hart, Anton Blanchard, Eric Dumazet,
bill o gallmeister, Jan Kiszka, Daniel Wagner, Rich Felker,
Andy Lutomirski, bert hubert
On Tue, 2015-07-28 at 07:44 +0200, Heinrich Schuchardt wrote:
> Hello David,
>
> >> A futex is in essence a 32-bit user-space address.
> I know what a 32 bit integer is.
> I am not aware of 32 bit addresses on my 64 bit operating system.
Well I am referring to in the context of a user-space address, such as a
32-bit lock ('int'), but yes, my text is misleading. In fact we
obviously need to cast to the word size for doing gup_fast, among other
tasks.
Thanks,
Davidlohr
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