diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-20 16:49:40 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-26 16:45:56 -0700 |
| commit | 6bed99917d414371cd5342158b6ed514ee8fee45 (patch) | |
| tree | d755f62f61398d939ab216e25943daf706bb1b6e /arch | |
| parent | e89cfc48a21fa83088e083fe6341ff803ab32f8e (diff) | |
mm: make stack guard page logic use vm_prev pointer
commit 0e8e50e20c837eeec8323bba7dcd25fe5479194c upstream.
Like the mlock() change previously, this makes the stack guard check
code use vma->vm_prev to see what the mapping below the current stack
is, rather than have to look it up with find_vma().
Also, accept an abutting stack segment, since that happens naturally if
you split the stack with mlock or mprotect.
Tested-by: Ian Campbell <ijc@hellion.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions