Re: [PATCH v4 1/7] x86/tlb: unify TLB_FLUSH_ALL definition

[H. Peter Anvin]

On 05/10/2012 11:46 AM, Rob Landley wrote:
> On 05/10/2012 12:00 AM, Alex Shi wrote:
>> Since sizeof(long) is 4 in x86_32 mode, and it's 8 in x86_64 mode,
>> sizeof(long long) is also 8 byte in x86_64 mode.
>> use long mode can fit TLB_FLUSH_ALL defination here both in 32 or
>> 64 bits mode.
> 
> I.E. Linux follows the LP64 standad, as do the BSDs and MacOS X:
> 
> http://www.unix.org/whitepapers/64bit.html
> http://www.unix.org/version2/whatsnew/lp64_wp.html
> 

Specifically, it is universally assumed in the Linux kernel that
sizeof(long) == sizeof(size_t) == sizeof(intptr_t).

	-hpa

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