lkml.org 
[lkml]   [2001]   [Sep]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: Synchronization Techniques in 2.2 Kernel
Date

bstrand@switchmanagement.com said:
> I apologize in advance if this is not quite right, having only done
> "hello world" kernel modules thus far (plus a good deal of kernel
> source browsing). I think you need to "unfold" the
> interruptible_sleep_on call and do it yourself by adding current to
> the wait queue before checking any cards, setting current->state =
> TASK_INTERRUPTIBLE, then checking all cards and if none has data,
> calling schedule.

You're right. It is very difficult to use sleep_on() and friends safely,
and for that reason the plan is (or at least _has_ been) to take them all
away in 2.5.



--
dwmw2


-
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 13:03    [W:0.030 / U:8.996 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site