[CRIU] [PATCH 2/4] vdso: don't scan MAP_GROWSDOWN vmas

[Cyrill Gorcunov]

From: Andrey Vagin <avagin at openvz.org>
Subject: [PATCH 2/4] vdso: don't scan MAP_GROWSDOWN vmas

* VDSO is never mapped with MAP_GROWSDOWN
* The first page  of growsdown vma may be a guard page, so any attempt
  to read it is suppressed by SIGBUS.

Signed-off-by: Andrey Vagin <avagin at openvz.org>
Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 arch/x86/vdso.c | 3 +++
 1 file changed, 3 insertions(+)

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