Re: [PATCH v2 13/18] x86, numa, mem_hotplug: Skip all the regionsthe kernel resides in.

[Tang Chen]

On 08/01/2013 09:42 PM, Tejun Heo wrote:
> > On Thu, Aug 01, 2013 at 03:06:35PM +0800, Tang Chen wrote:
> >
> > At early time, memblock will reserve some memory for the kernel,
> > such as the kernel code and data segments, initrd file, and so on=EF=BC=8C
> > which means the kernel resides in these memory regions.
> >
> > Even if these memory regions are hotpluggable, we should not
> > mark them as hotpluggable. Otherwise the kernel won't have enough
> > memory to boot.
> >
> > This patch finds out which memory regions the kernel resides in,
> > and skip them when finding all hotpluggable memory regions.
> >
> > Signed-off-by: Tang Chen<tangchen@xxxxxxxxxxxxxx>
> > Reviewed-by: Zhang Yanfei<zhangyanfei@xxxxxxxxxxxxxx>
> > ---
> >   mm/memory=5Fhotplug.c |   45 +++++++++++++++++++++++++++++++++++++++++++++
> >    1 files changed, 45 insertions(+), 0 deletions(-)
> >
> > diff --git a/mm/memory=5Fhotplug.c b/mm/memory=5Fhotplug.c
> > index 326e2f2..b800c9c 100644
> > --- a/mm/memory=5Fhotplug.c
> > +++ b/mm/memory=5Fhotplug.c
> > @@ -31,6 +31,7 @@
> >   #include<linux/firmware-map.h>
> >   #include<linux/stop=5Fmachine.h>
> >   #include<linux/acpi.h>
> > +#include<linux/memblock.h>
> > =20
> >   #include<asm/tlbflush.h>
> > =20
>
> This patch is contaminated.  Can you please resend?It

It's wired. I'll rebase these patches to linux 3.11-rc3 and resend them all.

Thanks.
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