lkml.org 
[lkml]   [2007]   [Aug]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [patch 1/2] i386: use asm() like the other atomic operations already do.
Date
Andi Kleen <ak@suse.de> wrote:
>> My config with march=pentium-m and gcc (GCC) 4.1.2 (Gentoo 4.1.2):
>> text data bss dec hex filename
>> 3434150 249176 176128 3859454 3ae3fe atomic_normal/vmlinux
>> 3435308 249176 176128 3860612 3ae884 atomic_inlineasm/vmlinux
>
> What is the difference between atomic_normal and atomic_inlineasm?

The inline asm stops certain optimisations from occuring.

I'm still unconvinced why we need this because nobody has
brought up any examples of kernel code that legitimately
need this.

Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2007-08-15 10:43    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site