diff options
| author |   Ingo Molnar <mingo@kernel.org> | 2017-08-26 09:19:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-26 09:19:13 +0200 |
| commit | 413d63d71b222108d19703f3fd5cf9108652a730 (patch) | |
| tree | 4680de6aebb6430dc5f3d9327f86d65149e6b5ae /arch/x86/mm/mmap.c | |
| parent | x86/CPU: Align CR3 defines (diff) | |
| parent | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma (diff) | |
| download | wireguard-linux-413d63d71b222108d19703f3fd5cf9108652a730.tar.xz wireguard-linux-413d63d71b222108d19703f3fd5cf9108652a730.zip | |
Merge branch 'linus' into x86/mm to pick up fixes and to fix conflicts
Conflicts:
arch/x86/kernel/head64.c
arch/x86/mm/mmap.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/mm/mmap.c')
| -rw-r--r-- | arch/x86/mm/mmap.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c index c15a50a70b24..a99679826846 100644 --- a/arch/x86/mm/mmap.c +++ b/arch/x86/mm/mmap.c @@ -50,8 +50,7 @@ unsigned long task_size_64bit(int full_addr_space) static unsigned long stack_maxrandom_size(unsigned long task_size) { unsigned long max = 0; - if ((current->flags & PF_RANDOMIZE) && - !(current->personality & ADDR_NO_RANDOMIZE)) { + if (current->flags & PF_RANDOMIZE) { max = (-1UL) & __STACK_RND_MASK(task_size == task_size_32bit()); max <<= PAGE_SHIFT; } @@ -79,13 +78,13 @@ static int mmap_is_legacy(void) static unsigned long arch_rnd(unsigned int rndbits) { + if (!(current->flags & PF_RANDOMIZE)) + return 0; return (get_random_long() & ((1UL << rndbits) - 1)) << PAGE_SHIFT; } unsigned long arch_mmap_rnd(void) { - if (!(current->flags & PF_RANDOMIZE)) - return 0; return arch_rnd(mmap_is_ia32() ? mmap32_rnd_bits : mmap64_rnd_bits); } |