diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-16 18:21:36 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-16 18:21:36 -0800 |
| commit | 98c4514ff6e3072288770db66f91bdb15af8b433 (patch) | |
| tree | eb5f2541e70d27144720e1735b463471025908f0 /arch/s390/mm/gup.c | |
| parent | 644a9d3b66e6983c2c1f3b24c3006d49b184c871 (diff) | |
| parent | f4a75d2eb7b1e2206094b901be09adb31ba63681 (diff) | |
Merge 3.7-rc6 into char-misc-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 60acb93a468..1f5315d1215 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -126,7 +126,7 @@ static inline int gup_pmd_range(pud_t *pudp, pud_t pud, unsigned long addr, */ if (pmd_none(pmd) || pmd_trans_splitting(pmd)) return 0; - if (unlikely(pmd_huge(pmd))) { + if (unlikely(pmd_large(pmd))) { if (!gup_huge_pmd(pmdp, pmd, addr, next, write, pages, nr)) return 0; @@ -180,8 +180,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, addr = start; len = (unsigned long) nr_pages << PAGE_SHIFT; end = start + len; - if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ, - (void __user *)start, len))) + if ((end < start) || (end > TASK_SIZE)) return 0; local_irq_save(flags); @@ -229,7 +228,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, addr = start; len = (unsigned long) nr_pages << PAGE_SHIFT; end = start + len; - if (end < start) + if ((end < start) || (end > TASK_SIZE)) goto slow_irqon; /* |