[PATCH] kexec: unmap reserved pages for each error-return way

[Minfei Huang]

On 02/01/16 at 09:45pm, Andrew Morton wrote:
> On Thu, 28 Jan 2016 11:57:22 +0300 Dmitry Safonov <dsafonov at virtuozzo.com> wrote:
> 
> > On 01/28/2016 09:29 AM, Minfei Huang wrote:
> > > On 01/27/16 at 02:48pm, Dmitry Safonov wrote:
> > >> For allocation of kimage failure or kexec_prepare or load segments
> > >> errors there is no need to keep crashkernel memory mapped.
> > >> It will affect only s390 as map/unmap hook defined only for it.
> > >> As on unmap s390 also changes os_info structure let's check return code
> > >> and add info only on success.
> > > Hi, Dmitry.
> > >
> > > Previously, I sent a patch to fix this issue. You can refer it in
> > > following link.
> > >
> > > http://lists.infradead.org/pipermail/kexec/2015-July/013960.html
> > Oh, scratch my patch - I'm fine with yours, wanted to do the similar thing
> > because it has dazzled me while I was debugging around.
> 
> There were a bunch of patches tossed around in that thread but I'm not
> sure that anything actually got applied?  Perhaps some resending is
> needed.
> 

Hi, Andrew.

I will work on it to update a new patch.

Thanks
Minfei