On Wed, 2007-11-14 at 22:42 +0000, Pavel Machek wrote: > On Wed 2007-11-14 22:25:57, Rafael J. Wysocki wrote: > > [Andrew, please consider this as 2.6.24 material, thanks.] > > --- > > From: Johannes Berg <[EMAIL PROTECTED]> > > > > Lockdep reports a circular locking dependency in the hibernate code > > because > > - during system boot hibernate code (from an initcall) locks pm_mutex > > and then a sysfs buffer mutex via name_to_dev_t > > - during regular operation hibernate code locks pm_mutex under a > > sysfs buffer mutex because it's called from sysfs methods. > > > > The deadlock can never happen because during initcall invocation nothing > > can write to sysfs yet. This removes the lockdep report by marking the > > initcall locking as being in a different class. > > > > Signed-off-by: Johannes Berg <[EMAIL PROTECTED]> > > Cc: Alan Stern <[EMAIL PROTECTED]> > > Cc: Peter Zijlstra <[EMAIL PROTECTED]>
I guess mine got lost too :-) Acked-by: Peter Zijlstra <[EMAIL PROTECTED]> > > Cc: Pavel Machek <[EMAIL PROTECTED]> > > ACK... > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
