lkml.org 
[lkml]   [2002]   [Feb]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [RFC] New locking primitive for 2.5
Date
On 7 February 2002 17:56, yodaiken@fsmlabs.com wrote:
> > If a spin_lock request is blocked by a mutex_lock call, the spin_lock
> > attempt also sleeps i.e. behaves like a semaphore.
>
> So what's the difference between combi_spin and combi_mutex?
> combi_spin becomes
> if not mutex locked, spin
> else sleep
> Bizzare

combi_spin_lock():
If not mutex locked, spin - will be released shortly
else sleep - may take long time before released
* lock released *
spin lock it! <=== this is the difference -
combi_mutex_lock would mutex lock it here

What's wrong with this?
--
vda
-
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: 2005-03-22 13:24    [W:0.153 / U:71.628 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site