diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-11-26 15:04:42 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-11-26 15:04:47 +0100 |
| commit | e4e91ac410356da3a518188f371e9d3b52ee38ee (patch) | |
| tree | e1b33743a08847030285d34bcb2eb8ba90f30a0c /arch/s390/mm/gup.c | |
| parent | ea7872b9d6a81101f6ba0ec141544a62fea35876 (diff) | |
| parent | 3561d43fd289f590fdae672e5eb831b8d5cf0bf6 (diff) | |
Merge commit 'v2.6.37-rc3' into perf/core
Merge reason: Pick up latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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); |