linux-kernel - [RFC PATCH 2/4] nsproxy - make create_new

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Message-ID: <20141125010727.4974.27785.stgit@pluto.fritz.box>
Date:	Tue, 25 Nov 2014 09:07:28 +0800
From:	Ian Kent <ikent@...hat.com>
To:	Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	"J. Bruce Fields" <bfields@...ldses.org>,
	Oleg Nesterov <onestero@...hat.com>,
	Stanislav Kinsbursky <skinsbursky@...allels.com>,
	Trond Myklebust <trond.myklebust@...marydata.com>,
	David Howells <dhowells@...hat.com>,
	Benjamin Coddington <bcodding@...hat.com>,
	Al Viro <viro@...IV.linux.org.uk>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: [RFC PATCH 2/4] nsproxy - make create_new_namespaces() non-static

create_new_namespaces() will be needed by call_usermodehelper_ns()
and call_usermodehelper_keys() for namespace restricted execution.

Signed-off-by: Ian Kent <ikent@...hat.com>
Signed-off-by: Benjamin Coddington <bcodding@...hat.com>
Cc: Al Viro <viro@...IV.linux.org.uk>
Cc: J. Bruce Fields <bfields@...ldses.org>
Cc: David Howells <dhowells@...hat.com>
Cc: Trond Myklebust <trond.myklebust@...marydata.com>
Cc: Stanislav Kinsbursky <skinsbursky@...allels.com>
Cc: Oleg Nesterov <onestero@...hat.com>
Cc: Eric W. Biederman <ebiederm@...ssion.com>
---
 include/linux/nsproxy.h |    3 +++
 kernel/nsproxy.c        |    2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index 35fa08f..dfe7dda 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -62,6 +62,9 @@ extern struct nsproxy init_nsproxy;
  *
  */
 
+struct nsproxy *create_new_namespaces(unsigned long flags,
+	struct task_struct *tsk, struct user_namespace *user_ns,
+	struct fs_struct *new_fs);
 int copy_namespaces(unsigned long flags, struct task_struct *tsk);
 void exit_task_namespaces(struct task_struct *tsk);
 void switch_task_namespaces(struct task_struct *tsk, struct nsproxy *new);
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
index ef42d0a..dcfbb13 100644
--- a/kernel/nsproxy.c
+++ b/kernel/nsproxy.c
@@ -56,7 +56,7 @@ static inline struct nsproxy *create_nsproxy(void)
  * Return the newly created nsproxy.  Do not attach this to the task,
  * leave it to the caller to do proper locking and attach it to task.
  */
-static struct nsproxy *create_new_namespaces(unsigned long flags,
+struct nsproxy *create_new_namespaces(unsigned long flags,
 	struct task_struct *tsk, struct user_namespace *user_ns,
 	struct fs_struct *new_fs)
 {

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