lkml.org 
[lkml]   [1999]   [Oct]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.3.32: CONFIG_BIGMEM does not compile on x86
Hi!

> I prefer taking a "long long" and shifting it to a simple "long" pfn,
> simply because gcc is so horribly bad at dealing with "long long" (not
> entirely gcc's fault - it's hard to do a good job with two-register
> entities when the machine only has 6 usable registers for many things -
> but gcc does generate even worse code than it really should).
>
> That's what is going to happen to "page->offset" too - instead of
> extending the field to 64 bits and see gcc get a nervous breakdown (not to
> mention waste memory), the thing will just be a shifted value, giving a
> better dynamic range without the "long long" downsides.

Does that mean that we are going to get >2G file support on i386 in
2.4.X?
Pavel
--
I'm really pavel@ucw.cz. Look at http://195.113.31.123/~pavel. Pavel
Hi! I'm a .signature virus! Copy me into your ~/.signature, please!

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:54    [W:0.066 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site