diff options
| author | Jason Cooper <jason@lakedaemon.net> | 2016-10-11 23:54:05 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-12 01:06:32 +0300 |
| commit | 09fddbaf90aa9fc0abd80332a191fbfd0158e22b (patch) | |
| tree | 283f9357259cc7ad8a528df2ba9eb1144a037f5d /arch/tile | |
| parent | fa5114c78c596e977af04865b697b7fcb092a0fb (diff) | |
| download | linux-09fddbaf90aa9fc0abd80332a191fbfd0158e22b.tar.xz | |
tile: use simpler API for random address requests
Currently, all callers to randomize_range() set the length to 0 and
calculate end by adding a constant to the start address. We can simplify
the API to remove a bunch of needless checks and variables.
Use the new randomize_addr(start, range) call to set the requested
address.
Link: http://lkml.kernel.org/r/20160803233913.32511-6-jason@lakedaemon.net
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/tile')
| -rw-r--r-- | arch/tile/mm/mmap.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/tile/mm/mmap.c b/arch/tile/mm/mmap.c index 851a94e6ae58..ef61c597898b 100644 --- a/arch/tile/mm/mmap.c +++ b/arch/tile/mm/mmap.c @@ -88,6 +88,5 @@ void arch_pick_mmap_layout(struct mm_struct *mm) unsigned long arch_randomize_brk(struct mm_struct *mm) { - unsigned long range_end = mm->brk + 0x02000000; - return randomize_range(mm->brk, range_end, 0) ? : mm->brk; + return randomize_page(mm->brk, 0x02000000); } |