lkml.org 
[lkml]   [2008]   [Jun]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH -rt] ide: fix interrupts processing issue with preempt-able hardirqs

* Anton Vorontsov <avorontsov@ru.mvista.com> wrote:

> IDE interrupt handler relies on the fact that, if necessary, hardirqs
> will re-trigger on ISR exit. With fully preemtable IRQs this seems to
> be not true, since if hardirq thread is currently running, and the
> same IRQ raised again, then this IRQ will be simply lost.

actually no, that should not happen - if -rt loses an IRQ then something
broke in the threaded IRQ code. It's supposed to be a drop-in,
compatible IRQ flow with no driver changes needed.

( also, please do not Cc: mainline maintainers to RFC -rt patches, let
the -rt maintainers sort out the need for any patch propagation - once
the patches are sufficiently cooked. Thanks. )

Ingo


\
 
 \ /
  Last update: 2008-06-24 01:55    [W:0.216 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site