lkml.org 
[lkml]   [2007]   [Jul]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [linux-pm] [PATCH] Remove process freezer from suspend to RAM pathway
On Wed, Jul 04, 2007 at 10:38:47AM -0400, Alan Stern wrote:

> Okay, I agree that (1) can be handled without too much effort. But
> doing it adds an extra test to _every_ driver's I/O pathway. Freezing
> userspace does not incur all this additional overhead.

For runtime PM to work it's already necessary to have a test in that
path to check if the device is suspended. I can't see how this adds any
overhead to the common case.

--
Matthew Garrett | mjg59@srcf.ucam.org
-
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: 2007-07-04 17:01    [W:0.201 / U:5.452 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site