diff options
| author | Radu Caragea <sinaelgl@gmail.com> | 2013-08-21 20:55:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-29 09:47:39 -0700 |
| commit | ff1a668bc01c811ffcf19a3d43af58d7bd658986 (patch) | |
| tree | 1b498dbdba936624fc26f82dac0bd69082c3107d /include | |
| parent | bd4b69c1f7f58fc28fb636a3be006770edf58d68 (diff) | |
x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member
commit 41aacc1eea645c99edbe8fbcf78a97dc9b862adc upstream.
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: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm_types.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index ace9a5f01c6..4a189ba6b12 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -333,6 +333,7 @@ struct mm_struct { void (*unmap_area) (struct mm_struct *mm, unsigned long addr); #endif unsigned long mmap_base; /* base of mmap area */ + unsigned long mmap_legacy_base; /* base of mmap area in bottom-up allocations */ unsigned long task_size; /* size of task vm space */ unsigned long cached_hole_size; /* if non-zero, the largest hole below free_area_cache */ unsigned long free_area_cache; /* first hole of size cached_hole_size or larger */ |