Le 23/10/2019 à 18:39, Guillaume Nault a écrit :
> In rtnl_net_notifyid(), we certainly can't pass a null GFP flag to
> rtnl_notify(). A GFP_KERNEL flag would be fine in most circumstances,
> but there are a few paths calling rtnl_net_notifyid() from atomic
> context or from RCU critical sections.
In rtnl_net_notifyid(), we certainly can't pass a null GFP flag to
rtnl_notify(). A GFP_KERNEL flag would be fine in most circumstances,
but there are a few paths calling rtnl_net_notifyid() from atomic
context or from RCU critical sections. The later also precludes the use
of gfp_any() as it would
On Fri, Oct 18, 2019 at 01:55:46PM -0700, Pravin Shelar wrote:
> On Sun, Oct 13, 2019 at 3:22 PM Guillaume Nault wrote:
> > The point of my RFC is to know if it's possible to avoid all these
> > gfp_t flags, by allowing ovs_vport_cmd_fill_info() to sleep (at least
> > I'd like to figure out if it'
On Sun, Oct 13, 2019 at 3:22 PM Guillaume Nault wrote:
>
> On Sun, Oct 13, 2019 at 12:09:43PM -0700, Pravin Shelar wrote:
> > On Thu, Oct 10, 2019 at 12:07 PM Guillaume Nault wrote:
> > >
> > > In rtnl_net_notifyid(), we certainly can't pass a null GFP flag to
> > > rtnl_notify(). A GFP_KERNEL fl
On Sun, Oct 13, 2019 at 12:09:43PM -0700, Pravin Shelar wrote:
> On Thu, Oct 10, 2019 at 12:07 PM Guillaume Nault wrote:
> >
> > In rtnl_net_notifyid(), we certainly can't pass a null GFP flag to
> > rtnl_notify(). A GFP_KERNEL flag would be fine in most circumstances,
> > but there are a few path
On Thu, Oct 10, 2019 at 12:07 PM Guillaume Nault wrote:
>
> In rtnl_net_notifyid(), we certainly can't pass a null GFP flag to
> rtnl_notify(). A GFP_KERNEL flag would be fine in most circumstances,
> but there are a few paths calling rtnl_net_notifyid() from atomic
> context or from RCU critical
From: Guillaume Nault
Date: Thu, 10 Oct 2019 21:07:29 +0200
> Before I spend more time on this, do we have a chance to make
> ovs_vport_cmd_fill_info() and __dev_notify_flags() sleepable?
> I'd like to avoid passing GFP flags along these call chains, if at all
> possible.
OVS folks, please weigh
In rtnl_net_notifyid(), we certainly can't pass a null GFP flag to
rtnl_notify(). A GFP_KERNEL flag would be fine in most circumstances,
but there are a few paths calling rtnl_net_notifyid() from atomic
context or from RCU critical section. The later also precludes the use
of gfp_any() as it wouldn
