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authorEric W. Biederman <ebiederm@xmission.com>2012-07-26 04:02:49 -0700
committerEric W. Biederman <ebiederm@xmission.com>2012-11-20 04:17:43 -0800
commitbcf58e725ddc45d31addbc6627d4f0edccc824c1 (patch)
treee6dff2fbed40f26d8c45f78e23a7476527573bf1 /include/linux/ipc_namespace.h
parent142e1d1d5f088e7a38659daca6e84a730967774a (diff)
downloadop-kernel-dev-bcf58e725ddc45d31addbc6627d4f0edccc824c1.zip
op-kernel-dev-bcf58e725ddc45d31addbc6627d4f0edccc824c1.tar.gz
userns: Make create_new_namespaces take a user_ns parameter
Modify create_new_namespaces to explicitly take a user namespace parameter, instead of implicitly through the task_struct. This allows an implementation of unshare(CLONE_NEWUSER) where the new user namespace is not stored onto the current task_struct until after all of the namespaces are created. Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'include/linux/ipc_namespace.h')
-rw-r--r--include/linux/ipc_namespace.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 5499c92..f03af70 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -133,7 +133,8 @@ static inline int mq_init_ns(struct ipc_namespace *ns) { return 0; }
#if defined(CONFIG_IPC_NS)
extern struct ipc_namespace *copy_ipcs(unsigned long flags,
- struct task_struct *tsk);
+ struct user_namespace *user_ns, struct ipc_namespace *ns);
+
static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
{
if (ns)
@@ -144,12 +145,12 @@ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
extern void put_ipc_ns(struct ipc_namespace *ns);
#else
static inline struct ipc_namespace *copy_ipcs(unsigned long flags,
- struct task_struct *tsk)
+ struct user_namespace *user_ns, struct ipc_namespace *ns)
{
if (flags & CLONE_NEWIPC)
return ERR_PTR(-EINVAL);
- return tsk->nsproxy->ipc_ns;
+ return ns;
}
static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
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