Re: [PATCH for-next 3/3] IB/hfi1: Close race condition on user context disable and close

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On Tue, Feb 26, 2019 at 12:15:59PM -0500, Dennis Dalessandro wrote:
> On 2/26/2019 11:45 AM, Dennis Dalessandro wrote:
> >   struct hfi1_ctxtdata *hfi1_rcd_get_by_index(struct hfi1_devdata *dd, u16 ctxt);
> > diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
> > index 7841a0a..2cc5164 100644
> > +++ b/drivers/infiniband/hw/hfi1/init.c
> > @@ -214,12 +214,12 @@ static void hfi1_rcd_free(struct kref *kref)
> >   	struct hfi1_ctxtdata *rcd =
> >   		container_of(kref, struct hfi1_ctxtdata, kref);
> > -	hfi1_free_ctxtdata(rcd->dd, rcd);
> > -
> >   	spin_lock_irqsave(&rcd->dd->uctxt_lock, flags);
> >   	rcd->dd->rcd[rcd->ctxt] = NULL;
> >   	spin_unlock_irqrestore(&rcd->dd->uctxt_lock, flags);
> > +	hfi1_free_ctxtdata(rcd->dd, rcd);
> > +
> >   	kfree(rcd);
> >   }
> Whoops, hold off on pulling this one just yet. We need to take a closer look
> at the above hunk.

Oh, okay.. Please resend it

Jason



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