commit 3b34fc5880a2dcc7e5ed9837ef8d6bae051ab266
author Oleg Nesterov <oleg@redhat.com> Wed Jun 17 16:27:38 2009 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> Thu Jun 18 13:03:52 2009 -0700
tree 477b9a29135cc7b8815ce7ce19201bce371c56a1
parent 72a1de39f89325a834a8c70b2a0d8f71d919f640

elf_core_dump: use rcu_read_lock() to access ->real_parent

In theory it is not safe to dereference ->parent/real_parent without
tasklist or rcu lock, we can race with re-parenting.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>