x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member
authorRadu Caragea <sinaelgl@gmail.com>
Wed, 21 Aug 2013 17:55:59 +0000 (20:55 +0300)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 22 Aug 2013 17:19:35 +0000 (10:19 -0700)
commit41aacc1eea645c99edbe8fbcf78a97dc9b862adc
tree2f1a4a363b738d374c58ca2a0d520f2b0981bf67
parent5ea80f76a56605a190a7ea16846c82aa63dbd0aa
x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member

This is the updated version of df54d6fa5427 ("x86 get_unmapped_area():
use proper mmap base for bottom-up direction") that only randomizes the
mmap base address once.

Signed-off-by: Radu Caragea <sinaelgl@gmail.com>
Reported-and-tested-by: Jeff Shorey <shoreyjeff@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michel Lespinasse <walken@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Adrian Sendroiu <molecula2788@gmail.com>
Cc: Greg KH <greg@kroah.com>
Cc: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/x86/kernel/sys_x86_64.c
arch/x86/mm/mmap.c
include/linux/mm_types.h