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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-09-09 15:43:25 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-10 14:05:53 +0200 |
| commit | 6a9e91846bf52cc70a0417de19fdfac224c435c4 (patch) | |
| tree | 5ed5ec79c529aa3c579de3ac984d10f9d59c1b8f /arch/x86/xen | |
| parent | 3ce9bcb583536c45a46c7302747029450e22279c (diff) | |
| download | linux-6a9e91846bf52cc70a0417de19fdfac224c435c4.tar.gz linux-6a9e91846bf52cc70a0417de19fdfac224c435c4.tar.bz2 linux-6a9e91846bf52cc70a0417de19fdfac224c435c4.zip | |
xen: fix pinning when not using split pte locks
We only pin PTE pages when using split PTE locks, so don't do the
pin/unpin when attaching/detaching pte pages to a pinned pagetable.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index b106e825d266..8ca2f88bde1e 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -826,7 +826,7 @@ static void xen_alloc_ptpage(struct mm_struct *mm, u32 pfn, unsigned level) if (!PageHighMem(page)) { make_lowmem_page_readonly(__va(PFN_PHYS((unsigned long)pfn))); - if (level == PT_PTE) + if (level == PT_PTE && USE_SPLIT_PTLOCKS) pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn); } else /* make sure there are no stray mappings of @@ -894,7 +894,7 @@ static void xen_release_ptpage(u32 pfn, unsigned level) if (PagePinned(page)) { if (!PageHighMem(page)) { - if (level == PT_PTE) + if (level == PT_PTE && USE_SPLIT_PTLOCKS) pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn); make_lowmem_page_readwrite(__va(PFN_PHYS(pfn))); } |