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| author | Takashi Iwai <tiwai@suse.de> | 2017-10-05 15:08:57 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-10-05 15:08:57 +0200 |
| commit | 3a9fce327ff9cabf7f89d3f20616a83af28393da (patch) | |
| tree | c516d3e7023e7fe2dc8d4cf60e2ec03f3c9b5958 /arch/s390/mm/gup.c | |
| parent | e195a331c4124a6527e5e1b6fbd93a6b4a984d7b (diff) | |
| parent | 394ca81cb4c1518e9463fe342fb1ae8a9f46a82d (diff) | |
Merge branch 'topic/timer-api' into for-next
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 8ecc25e760fa..98ffe3ee9411 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -56,13 +56,12 @@ static inline int gup_pte_range(pmd_t *pmdp, pmd_t pmd, unsigned long addr, static inline int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr, unsigned long end, int write, struct page **pages, int *nr) { - unsigned long mask, result; struct page *head, *page; + unsigned long mask; int refs; - result = write ? 0 : _SEGMENT_ENTRY_PROTECT; - mask = result | _SEGMENT_ENTRY_INVALID; - if ((pmd_val(pmd) & mask) != result) + mask = (write ? _SEGMENT_ENTRY_PROTECT : 0) | _SEGMENT_ENTRY_INVALID; + if ((pmd_val(pmd) & mask) != 0) return 0; VM_BUG_ON(!pfn_valid(pmd_val(pmd) >> PAGE_SHIFT)); |