lkml.org 
[lkml]   [2006]   [Oct]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Using "Asynchronous Notifications" within an interrupt handler
>
> My question is: is it safe to use the asynchronous notification
> mechanism within an interrupt handler? I see that this call acquires a
> bunch of locks before sending the signal to the process. Would this
> cause any deadlocking situations? Or should I resort to the top and
> bottom half approach for interrupt handling and handle the
> notification in the bottom half?

It may be possible - I have an old driver for custom hardware lying
around here, and it does this in the irq handler:

kill_fasync(&global.fasync_ptr, SIGIO, POLL_IN);



-`J'
--
-
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: 2006-10-06 07:45    [from the cache]
©2003-2011 Jasper Spaans