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| author | Andres Lagar-Cavilla <andres@lagarcavilla.org> | 2012-01-26 13:21:27 +0000 |
|---|---|---|
| committer | Andres Lagar-Cavilla <andres@lagarcavilla.org> | 2012-01-26 13:21:27 +0000 |
| commit | 91279d9f230d7314e212a0e3aa0cee874edb6a3d (patch) | |
| tree | a9ba425f62f44176f013f80698722a9ec2993c3e /xen | |
| parent | 1c5158f2a687ef7705da412b370a5d1e3d5837a9 (diff) | |
| download | xen-91279d9f230d7314e212a0e3aa0cee874edb6a3d.tar.gz xen-91279d9f230d7314e212a0e3aa0cee874edb6a3d.tar.bz2 xen-91279d9f230d7314e212a0e3aa0cee874edb6a3d.zip | |
x86/mm: Properly account for paged out pages
If we hit the page after nominate but before paging it out, don't decrement the
domain count of paged out pages.
Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Acked-by: Tim Deegan <tim@xen.org>
Committed-by: Tim Deegan <tim@xen.org>
Diffstat (limited to 'xen')
| -rw-r--r-- | xen/arch/x86/mm/p2m.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/xen/arch/x86/mm/p2m.c b/xen/arch/x86/mm/p2m.c index 3080d2c1fb..844766a5e5 100644 --- a/xen/arch/x86/mm/p2m.c +++ b/xen/arch/x86/mm/p2m.c @@ -1041,7 +1041,8 @@ int p2m_mem_paging_prep(struct domain *d, unsigned long gfn, uint64_t buffer) p2m_ram_rw, a); set_gpfn_from_mfn(mfn_x(mfn), gfn); - atomic_dec(&d->paged_pages); + if ( !page_extant ) + atomic_dec(&d->paged_pages); ret = 0; |