On Mon, Apr 15, 2019, 2:50 AM Dongli Zhang <dongli.zh...@oracle.com> wrote:
> As the patch to be fixed is still in Konrad's own tree, I will send the v2
> for
> the patch to be fixed, instead of an incremental fix.
>
I squashed it in.
> Dongli Zhang
>
> On 4/12/19 10:13 PM, Joe Jin wrote:
> > I'm good to have this patch, which helps identify the cause of failure is
> > fragmentation or it really been used up.
> >
> > On 4/12/19 4:38 AM, Dongli Zhang wrote:
> >> When swiotlb is full, the kernel would print io_tlb_used. However, the
> >> result might be inaccurate at that time because we have left the
> critical
> >> section protected by spinlock.
> >>
> >> Therefore, we backup the io_tlb_used into local variable before leaving
> >> critical section.
> >>
> >> Fixes: 83ca25948940 ("swiotlb: dump used and total slots when swiotlb
> buffer is full")
> >> Suggested-by: Håkon Bugge <haakon.bu...@oracle.com>
> >> Signed-off-by: Dongli Zhang <dongli.zh...@oracle.com>
> >
> > Reviewed-by: Joe Jin <joe....@oracle.com>
> >
> > Thanks,
> > Joe
> >
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