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SubjectRe: [PATCH] x86: keep the page count correct

* Suresh Siddha <suresh.b.siddha@intel.com> wrote:

> On Sat, Oct 25, 2008 at 10:58:21PM -0700, Yinghai Lu wrote:
> >
> > impact: get correct page count for 2M and 1G...
> >
> > found page count in /proc/meminfo is nor correct on 1G system in VirtualBox 2.0.4
> >
> > # cat /proc/meminfo
> > MemTotal: 1017508 kB
> > MemFree: 822700 kB
> > Buffers: 1456 kB
> > Cached: 26632 kB
> > SwapCached: 0 kB
> > ...
> > Hugepagesize: 2048 kB
> > DirectMap4k: 4032 kB
> > DirectMap2M: 18446744073709549568 kB
> >
> > with this patch get:
> > ...
> > DirectMap4k: 4032 kB
> > DirectMap2M: 1044480 kB
> >
> > which is consistent to kernel_page_tables
> > ---[ Low Kernel Mapping ]---
> > 0xffff880000000000-0xffff880000001000 4K RW PCD GLB x pte
> > 0xffff880000001000-0xffff88000009f000 632K RW GLB x pte
> > 0xffff88000009f000-0xffff8800000a0000 4K RW PCD GLB x pte
> > 0xffff8800000a0000-0xffff880000200000 1408K RW GLB x pte
> > 0xffff880000200000-0xffff88003fe00000 1020M RW PSE GLB x pmd
> > 0xffff88003fe00000-0xffff88003fff0000 1984K RW GLB NX pte
> > 0xffff88003fff0000-0xffff880040000000 64K pte
> > 0xffff880040000000-0xffff888000000000 511G pud
> > 0xffff888000000000-0xffffc20000000000 58880G pgd
> >
> > Signed-off-by: Yinghai Lu <yinghai@kernel.org>
>
> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>

applied to tip/x86/urgent, thanks guys!

Ingo


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