diff options
Diffstat (limited to 'arch/powerpc/mm/mmap.c')
| -rw-r--r-- | arch/powerpc/mm/mmap.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c index 82fc5762f971..005aa8a44915 100644 --- a/arch/powerpc/mm/mmap.c +++ b/arch/powerpc/mm/mmap.c @@ -59,13 +59,14 @@ static inline int mmap_is_legacy(void) unsigned long arch_mmap_rnd(void) { - unsigned long rnd; + unsigned long shift, rnd; - /* 8MB for 32bit, 1GB for 64bit */ + shift = mmap_rnd_bits; +#ifdef CONFIG_COMPAT if (is_32bit_task()) - rnd = get_random_long() % (1<<(23-PAGE_SHIFT)); - else - rnd = get_random_long() % (1UL<<(30-PAGE_SHIFT)); + shift = mmap_rnd_compat_bits; +#endif + rnd = get_random_long() % (1 << shift); return rnd << PAGE_SHIFT; } |