lkml.org 
[lkml]   [2006]   [Jul]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [patch] spinlocks: remove 'volatile'
From
Date
"Albert Cahalan" <acahalan@gmail.com> writes:

> That's all theoretical though. Today, gcc's volatile does
> not follow the C standard on modern hardware. Bummer.
> It'd be low-performance anyway though.

I think gcc's volatile does in fact follow the standard. The standard
simply doesn't say anything about hardware accesses, SMP, PCI etc.
You must know what you're doing, and for some things you need a bit
of assembler.
--
Krzysztof Halasa
-
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: 2006-07-08 12:47    [from the cache]
©2003-2011 Jasper Spaans