Re: [PATCH RFC v3 1/2] mm: Add personality flag to limit address to 47 bits
Christophe Leroy <[email protected]>
| Newsgroups | 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.ppc64.devel,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm |
|---|---|
| Message-ID | <[email protected]> |
>>> 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.
Christophe