lkml.org 
[lkml]   [2005]   [Dec]   [13]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateTue, 13 Dec 2005 08:58:35 +0100
FromAndi Kleen <>
SubjectRe: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
> - i introduced a 'type-sensitive' macro wrapper that switches down() 
>   (and the other APIs) to either to the assembly variant (if the 
>   variable's type is struct compat_semaphore), or switches it to the new 
>   generic mutex (if the type is struct semaphore), at build-time. There 
>   is no runtime overhead due to this build-time-switching.

Didn't that drop compatibility with 2.95?  The necessary builtins
are only in 3.x. 

Not that I'm not in favour - I would like to use C99 everywhere 
and it would get of the ugly spinlock workaround for i386
and x86-64 doesn't support earlier compilers anyways - 
but others might not agree.

-Andi
-
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: 2005-12-13 09:01    [from the cache]
©2003-2008