Re: [PATCH RFC v3 1/2] mm: Add personality flag to limit address to 47 bits
Geert Uytterhoeven <[email protected]>
| Newsgroups | gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm |
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| Message-ID | <CAMuHMdURgy6NPthHhfOv_h=C_gw2hEpnGQ7iBGoDE=ZazUPRHA@mail.gmail.com> |
Hi Christophe, On Tue, Sep 10, 2024 at 11:21 AM Christophe Leroy <[email protected]> wrote: > >>> diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h > >>> index 49796b7756af..cd3b8c154d9b 100644 > >>> --- a/include/uapi/linux/personality.h > >>> +++ b/include/uapi/linux/personality.h > >>> @@ -22,6 +22,7 @@ enum { > >>> WHOLE_SECONDS = 0x2000000, > >>> STICKY_TIMEOUTS = 0x4000000, > >>> ADDR_LIMIT_3GB = 0x8000000, > >>> + ADDR_LIMIT_47BIT = 0x10000000, > >>> }; > >> > >> I wonder if ADDR_LIMIT_128T would be clearer? > >> > > > > I don't follow, what does 128T represent? > > 128T is 128 Terabytes, that's the maximum size achievable with a 47BIT > address, that naming would be more consistant with the ADDR_LIMIT_3GB > just above that means a 3 Gigabytes limit. Hence ADDR_LIMIT_128TB? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected] In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds