lkml.org 
[lkml]   [2005]   [Aug]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Calling suspend() in halt/restart/shutdown -> not a good idea
From
Date
On Tue, 2005-08-02 at 08:40 -0600, Eric W. Biederman wrote:
> Pavel Machek <pavel@ucw.cz> writes:
>
> > Hi!
> >
> >> Why are we calling driver suspend routines in these ? This is _not_
> >
> > Well, reason is that if you remove device_suspend() you'll get
> > emergency hard disk park during powerdown. As harddrives can survive
> > only limited number of emergency stops, that is not a good idea.
>
> Then the practical question is: do we suspend the disk by
> calling device_suspend() for every device. Or do we modify
> the ->shutdown() method for the disk.

afaik, IDE used to have a shutdown callback or a shutdown notifier
already anyway. If that was lost, then this is a different problem. If
SATA and/or SCSI aren't doing it, then they need fixing, but suspend()
isn't the solution.

Ben.


-
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: 2005-08-03 14:05    [W:0.247 / U:0.264 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site