diff options
Diffstat (limited to 'arch/powerpc/mm/slice.c')
| -rw-r--r-- | arch/powerpc/mm/slice.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c index f833dba2a02..319826ef164 100644 --- a/arch/powerpc/mm/slice.c +++ b/arch/powerpc/mm/slice.c @@ -405,6 +405,8 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len, if (len > mm->task_size) return -ENOMEM; + if (len & ((1ul << pshift) - 1)) + return -EINVAL; if (fixed && (addr & ((1ul << pshift) - 1))) return -EINVAL; if (fixed && addr > (mm->task_size - len)) @@ -549,6 +551,7 @@ EXPORT_SYMBOL_GPL(get_slice_psize); * * This is also called in init_new_context() to change back the user * psize from whatever the parent context had it set to + * N.B. This may be called before mm->context.id has been set. * * This function will only change the content of the {low,high)_slice_psize * masks, it will not flush SLBs as this shall be handled lazily by the |