Ulrich Drepper wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> H. Peter Anvin wrote:
>>No, it requires 31-bit addresses, and there was a discussion about how
>>some things need 31-bit and some 32-bit addresses.
> That's completely irrelevant to my point. Whether MAP_32BIT actually
> has a 31 bit limit or not doesn't matter, it's limited as well in the
> possible mmap blocks it can return.
> The only thing I care about is to have a hint and not a fixed
> requirement for mmap(). All your proposals completely ignored this.
If your program is capable of handling an address with more than 32
bits, what point is there giving a hint? Either your program can handle
64-bit pointers or it cannot. Any program flexible enough to handle
either size dynamically would expend enough overhead checking that it
would be worse than if it just made a hard choice.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to email@example.com
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu May 15 2003 - 22:00:32 EST