In some special cases we must not block, but there's not a
spinlock, preempt-off, irqs-off or similar critical section already
that arms the might_sleep() debug checks. Add a non_block_start/end()
pair to annotate these.
This will be used in the oom paths of mmu-notifiers, where blocking is
not al
On Mon, Dec 10, 2018 at 05:30:09PM +0100, Peter Zijlstra wrote:
> On Mon, Dec 10, 2018 at 05:20:10PM +0100, Michal Hocko wrote:
> > > OK, no real objections to the thing. Just so long we're all on the same
> > > page as to what it does and doesn't do ;-)
> >
> > I am not really sure whether there
On Mon, Dec 10, 2018 at 04:01:59PM +0100, Michal Hocko wrote:
> On Mon 10-12-18 15:47:11, Peter Zijlstra wrote:
> > On Mon, Dec 10, 2018 at 03:13:37PM +0100, Michal Hocko wrote:
> > > I do not see any scheduler guys Cced and it would be really great to get
> > > their opinion here.
> > >
> > > On
On Mon, Dec 10, 2018 at 05:20:10PM +0100, Michal Hocko wrote:
> > OK, no real objections to the thing. Just so long we're all on the same
> > page as to what it does and doesn't do ;-)
>
> I am not really sure whether there are other potential users besides
> this one and whether the check as suc
On Mon 10-12-18 16:22:53, Peter Zijlstra wrote:
> On Mon, Dec 10, 2018 at 04:01:59PM +0100, Michal Hocko wrote:
> > On Mon 10-12-18 15:47:11, Peter Zijlstra wrote:
> > > On Mon, Dec 10, 2018 at 03:13:37PM +0100, Michal Hocko wrote:
> > > > I do not see any scheduler guys Cced and it would be really
On Mon 10-12-18 15:47:11, Peter Zijlstra wrote:
> On Mon, Dec 10, 2018 at 03:13:37PM +0100, Michal Hocko wrote:
> > I do not see any scheduler guys Cced and it would be really great to get
> > their opinion here.
> >
> > On Mon 10-12-18 11:36:39, Daniel Vetter wrote:
> > > In some special cases we
On Mon, Dec 10, 2018 at 03:13:37PM +0100, Michal Hocko wrote:
> I do not see any scheduler guys Cced and it would be really great to get
> their opinion here.
>
> On Mon 10-12-18 11:36:39, Daniel Vetter wrote:
> > In some special cases we must not block, but there's not a
> > spinlock, preempt-off
I do not see any scheduler guys Cced and it would be really great to get
their opinion here.
On Mon 10-12-18 11:36:39, Daniel Vetter wrote:
> In some special cases we must not block, but there's not a
> spinlock, preempt-off, irqs-off or similar critical section already
> that arms the might_sleep
In some special cases we must not block, but there's not a
spinlock, preempt-off, irqs-off or similar critical section already
that arms the might_sleep() debug checks. Add a non_block_start/end()
pair to annotate these.
This will be used in the oom paths of mmu-notifiers, where blocking is
not al
