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authorSerge E. Hallyn <serue@us.ibm.com>2007-01-30 15:28:23 -0600
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-30 13:40:36 -0800
commit0f2452855d86901ba3766826ccb5606ea4e15ab9 (patch)
treeb5a48b7bc49bbfdf97434e4f9cc83607d78eb0de /kernel/exit.c
parent444f378b237a0f728f5c4aba752c08d13c209344 (diff)
downloadlinux-0f2452855d86901ba3766826ccb5606ea4e15ab9.tar.gz
[PATCH] namespaces: fix task exit disaster
This is based on a patch by Eric W. Biederman, who pointed out that pid namespaces are still fake, and we only have one ever active. So for the time being, we can modify any code which could access tsk->nsproxy->pid_ns during task exit to just use &init_pid_ns instead, and move the exit_task_namespaces call in do_exit() back above exit_notify(), so that an exiting nfs server has a valid tsk->sighand to work with. Long term, pulling pid_ns out of nsproxy might be the cleanest solution. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> [ Eric's patch fixed to take care of free_pid() too ] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/exit.c')
-rw-r--r--kernel/exit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 35401720635..fec12eb1247 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -938,8 +938,8 @@ fastcall NORET_TYPE void do_exit(long code)
tsk->exit_code = code;
proc_exit_connector(tsk);
- exit_notify(tsk);
exit_task_namespaces(tsk);
+ exit_notify(tsk);
#ifdef CONFIG_NUMA
mpol_free(tsk->mempolicy);
tsk->mempolicy = NULL;