From: Michael Ellerman <mpe@ellerman•id.au>
To: Geert Uytterhoeven <geert@linux-m68k•org>,
Christophe Leroy <christophe.leroy@csgroup•eu>
Cc: Charlie Jenkins <charlie@rivosinc•com>,
Arnd Bergmann <arnd@arndb•de>,
Richard Henderson <richard.henderson@linaro•org>,
Ivan Kokshaysky <ink@jurassic•park.msu.ru>,
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Vineet Gupta <vgupta@kernel•org>,
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Subject: Re: [PATCH RFC v3 1/2] mm: Add personality flag to limit address to 47 bits
Date: Wed, 11 Sep 2024 23:38:55 +1000 [thread overview]
Message-ID: <8734m6s428.fsf@mail.lhotse> (raw)
In-Reply-To: <CAMuHMdURgy6NPthHhfOv_h=C_gw2hEpnGQ7iBGoDE=ZazUPRHA@mail.gmail.com>
Geert Uytterhoeven <geert@linux-m68k•org> writes:
> Hi Christophe,
>
> On Tue, Sep 10, 2024 at 11:21 AM Christophe Leroy
> <christophe.leroy@csgroup•eu> 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?
Yes it should be 128TB. Typo by me.
cheers
next prev parent reply other threads:[~2024-09-11 13:38 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-05 21:15 [PATCH RFC v3 0/2] mm: Introduce ADDR_LIMIT_47BIT personality flag Charlie Jenkins
2024-09-05 21:15 ` [PATCH RFC v3 1/2] mm: Add personality flag to limit address to 47 bits Charlie Jenkins
2024-09-06 6:59 ` Michael Ellerman
2024-09-09 19:07 ` Charlie Jenkins
2024-09-10 9:20 ` Christophe Leroy
2024-09-10 12:43 ` Geert Uytterhoeven
2024-09-11 13:38 ` Michael Ellerman [this message]
2024-09-12 6:20 ` Charlie Jenkins
2024-09-20 5:10 ` Michael Ellerman
2024-09-11 13:37 ` Michael Ellerman
2024-09-06 7:17 ` Arnd Bergmann
2024-09-06 8:02 ` Lorenzo Stoakes
2024-09-06 8:14 ` Lorenzo Stoakes
2024-09-06 9:14 ` Arnd Bergmann
2024-09-06 9:52 ` Lorenzo Stoakes
2024-09-09 23:22 ` Charlie Jenkins
2024-09-10 9:13 ` Arnd Bergmann
2024-09-10 23:29 ` Charlie Jenkins
2024-09-11 13:50 ` Michael Ellerman
2024-09-06 9:14 ` Guo Ren
2024-09-06 9:55 ` Arnd Bergmann
2024-09-06 11:43 ` Catalin Marinas
2024-09-10 19:08 ` Liam R. Howlett
2024-09-11 0:45 ` Charlie Jenkins
2024-09-11 7:25 ` Arnd Bergmann
2024-09-12 6:06 ` Charlie Jenkins
2024-09-11 18:21 ` Catalin Marinas
2024-09-12 6:18 ` Charlie Jenkins
2024-09-12 10:53 ` Catalin Marinas
2024-09-12 21:15 ` Charlie Jenkins
2024-09-13 10:08 ` Catalin Marinas
2024-09-13 10:21 ` Catalin Marinas
2024-09-13 20:15 ` Charlie Jenkins
2024-09-13 7:41 ` Lorenzo Stoakes
2024-09-13 21:04 ` Charlie Jenkins
2024-10-02 14:26 ` Palmer Dabbelt
2024-09-05 21:15 ` [PATCH RFC v3 2/2] selftests/mm: Create ADDR_LIMIT_47BIT test Charlie Jenkins
2024-09-06 6:08 ` [PATCH RFC v3 0/2] mm: Introduce ADDR_LIMIT_47BIT personality flag Guo Ren
2024-09-06 6:19 ` John Paul Adrian Glaubitz
2024-09-08 11:26 ` Jiaxun Yang
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