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authorOleg Nesterov <oleg@redhat.com>2014-12-10 15:54:59 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 17:41:17 -0800
commit8a1296aea4a319b33c3367ff3805835e949a229f (patch)
tree81e2f96286e523330c2d698d742899ef3dd1909b
parentc35a7f18a0b237261dad57c9abd3adfa73f315e1 (diff)
exit: reparent: fix the dead-parent PR_SET_CHILD_SUBREAPER reparenting
The ->has_child_subreaper code in find_new_reaper() finds alive "thread" but returns another "reaper" thread which can be dead. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Aaron Tomlin <atomlin@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Kay Sievers <kay@vrfy.org> Cc: Lennart Poettering <lennart@poettering.net> Cc: Sterling Alexander <stalexan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/exit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 9a65f10dc9ff..fd38a8f04367 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -512,7 +512,7 @@ static struct task_struct *find_new_reaper(struct task_struct *father)
thread = reaper;
do {
if (!(thread->flags & PF_EXITING))
- return reaper;
+ return thread;
} while_each_thread(reaper, thread);
}
}