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| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-12-08 19:54:32 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-01-11 20:31:41 +0100 |
| commit | ba5d1012292403c8037adf4a54c4ec50dfe846c4 (patch) | |
| tree | f538a106dab612f2ac6c1cb072f8d7bc2040e71b /drivers/xen/gntdev.c | |
| parent | xen: gntdev: move use of GNTMAP_contains_pte next to the map_op (diff) | |
| download | linux-ba5d1012292403c8037adf4a54c4ec50dfe846c4.tar.xz linux-ba5d1012292403c8037adf4a54c4ec50dfe846c4.zip | |
xen/gntdev: stop using "token" argument
It's the struct page of the L1 pte page. But we can get its mfn
by simply doing an arbitrary_virt_to_machine() on it anyway (which is
the safe conservative choice; since we no longer allow HIGHPTE pages,
we would never expect to be operating on a mapped pte page).
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/gntdev.c')
| -rw-r--r-- | drivers/xen/gntdev.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 888d76307d59..a2ea5335e152 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -209,8 +209,8 @@ static int find_grant_ptes(pte_t *pte, pgtable_t token, u64 pte_maddr; BUG_ON(pgnr >= map->count); - pte_maddr = (u64)pfn_to_mfn(page_to_pfn(token)) << PAGE_SHIFT; - pte_maddr += (unsigned long)pte & ~PAGE_MASK; + pte_maddr = arbitrary_virt_to_machine(pte).maddr; + gnttab_set_map_op(&map->map_ops[pgnr], pte_maddr, GNTMAP_contains_pte | map->flags, map->grants[pgnr].ref, |