[PATCH v5 1/4] powerpc/fadump: un-register fadump on kexec path.

[Nicholas Piggin]

On Thu, 26 Apr 2018 18:35:10 +0530
Mahesh Jagannath Salgaonkar <mahesh at linux.vnet.ibm.com> wrote:

> On 04/26/2018 06:28 PM, Nicholas Piggin wrote:
> > On Thu, 26 Apr 2018 17:12:03 +0530
> > Mahesh J Salgaonkar <mahesh at linux.vnet.ibm.com> wrote:
> >   
> >> From: Mahesh Salgaonkar <mahesh at linux.vnet.ibm.com>
> >>
> >> otherwise the fadump registration in new kexec-ed kernel complains that
> >> fadump is already registered. This makes new kernel to continue using
> >> fadump registered by previous kernel which may lead to invalid vmcore
> >> generation. Hence this patch fixes this issue by un-registering fadump
> >> in fadump_cleanup() which is called during kexec path so that new kernel
> >> can register fadump with new valid values.  
> > 
> > I assume this series is for 4.17, but it might be good to get this one
> > into the 4.16 fixes branch? Should it go to stable kernels?  
> 
> You are right. Should I send it out as separate patch ?

Yes I think so.

Thanks,
Nick