netdev - Re: [PATCH] team: add rescheduling jiffy delay on !rtnl

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Message-ID: <20141005140855.GO5015@linux.vnet.ibm.com>
Date:	Sun, 5 Oct 2014 07:08:55 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Joe Lawrence <joe.lawrence@...atus.com>
Cc:	Tejun Heo <tj@...nel.org>, netdev@...r.kernel.org,
	Jiri Pirko <jiri@...nulli.us>
Subject: Re: [PATCH] team: add rescheduling jiffy delay on !rtnl_trylock

On Sun, Oct 05, 2014 at 08:53:08AM -0400, Joe Lawrence wrote:
> On 10/04/2014 10:13 PM, Tejun Heo wrote:
> > Hello,
> > 
> > On Sat, Oct 04, 2014 at 01:37:32AM -0700, Paul E. McKenney wrote:
> >> FWIW, there is a cond_resched_rcu_qs() that should be going into the next
> >> merge window that could be used in place of the above two lines.  This is
> >> commit bde6c3aa9930 in -tip.
> > 
> > That sounds even better.
> > 
> > Joe, can you please send a patch with proper SOB and description?
> > 
> > Thanks.
> 
> New patch tested and posted on lkml w/everyone CC'd.
> 
> I wasn't sure if cond_resched_rcu_qs will be backported, so how should
> -stable handle this condition?

If it is needed to backport a fix, it can of course be backported.
The various -stable maintainers also have the option of avoiding
the need for a backport by expanding it inline.  I am happy to let
them choose.  ;-)

							Thanx, Paul

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