diff options
Diffstat (limited to 'arch/s390/mm/mmap.c')
| -rw-r--r-- | arch/s390/mm/mmap.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c index c59a5efa58b..06bafec0027 100644 --- a/arch/s390/mm/mmap.c +++ b/arch/s390/mm/mmap.c @@ -101,12 +101,15 @@ void arch_pick_mmap_layout(struct mm_struct *mm) #else -int s390_mmap_check(unsigned long addr, unsigned long len) +int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) { int rc; - if (!is_compat_task() && - len >= TASK_SIZE && TASK_SIZE < (1UL << 53)) { + if (is_compat_task() || (TASK_SIZE >= (1UL << 53))) + return 0; + if (!(flags & MAP_FIXED)) + addr = 0; + if ((addr + len) >= TASK_SIZE) { rc = crst_table_upgrade(current->mm, 1UL << 53); if (rc) return rc; |