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| author | Paul Mundt <lethal@linux-sh.org> | 2010-11-19 17:04:25 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-11-19 17:04:25 +0900 |
| commit | fe040be2fdc49a4132c5f64359c629aeeb8e4947 (patch) | |
| tree | 40323a8f05d3754372f561bb8f4698ef1a4e9c8f /arch/s390/mm/gup.c | |
| parent | 2006920a18cc9f499e5cccf9e6f1aa9f6120705e (diff) | |
| parent | 6722a4016d7f5f107a82ad71a3ee1ccec105532f (diff) | |
| download | kernel_samsung_smdk4412-fe040be2fdc49a4132c5f64359c629aeeb8e4947.tar.gz kernel_samsung_smdk4412-fe040be2fdc49a4132c5f64359c629aeeb8e4947.tar.bz2 kernel_samsung_smdk4412-fe040be2fdc49a4132c5f64359c629aeeb8e4947.zip | |
Merge branch 'common/fbdev-mipi' of master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
Diffstat (limited to 'arch/s390/mm/gup.c')
| -rw-r--r-- | arch/s390/mm/gup.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index 38e641cdd97..45b405ca256 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -20,18 +20,17 @@ static inline int gup_pte_range(pmd_t *pmdp, pmd_t pmd, unsigned long addr, unsigned long end, int write, struct page **pages, int *nr) { - unsigned long mask, result; + unsigned long mask; pte_t *ptep, pte; struct page *page; - result = write ? 0 : _PAGE_RO; - mask = result | _PAGE_INVALID | _PAGE_SPECIAL; + mask = (write ? _PAGE_RO : 0) | _PAGE_INVALID | _PAGE_SPECIAL; ptep = ((pte_t *) pmd_deref(pmd)) + pte_index(addr); do { pte = *ptep; barrier(); - if ((pte_val(pte) & mask) != result) + if ((pte_val(pte) & mask) != 0) return 0; VM_BUG_ON(!pfn_valid(pte_pfn(pte))); page = pte_page(pte); |