diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/nommu.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index 37d0b03143f1..fdc392735ec6 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -631,6 +631,17 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) EXPORT_SYMBOL(find_vma); /* + * At least xtensa ends up having protection faults even with no + * MMU.. No stack expansion, at least. + */ +struct vm_area_struct *lock_mm_and_find_vma(struct mm_struct *mm, + unsigned long addr, struct pt_regs *regs) +{ + mmap_read_lock(mm); + return vma_lookup(mm, addr); +} + +/* * expand a stack to a given address * - not supported under NOMMU conditions */ |