[Devel] [PATCH RHEL7 COMMIT] ve/devmptfs: Use current_user_ns_initial() in dev_mount()

[Konstantin Khorenko]

The commit is pushed to "branch-rh7-3.10.0-229.7.2.vz7.8.x-ovz" and will appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-229.7.2.vz7.8.3
------>
commit 96bfd9a8802f1533094f5ec3ec99998b4a35316b
Author: Kirill Tkhai <ktkhai at odin.com>
Date:   Wed Oct 7 14:54:24 2015 +0400

    ve/devmptfs: Use current_user_ns_initial() in dev_mount()
    
    Use the helper instead of hardcoded check.
    
    Suggested-by: Vladimir Davydov <vdavydov at odin.com>
    Signed-off-by: Kirill Tkhai <ktkhai at odin.com>
---
 drivers/base/devtmpfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 9f3809c..92840a0 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -105,7 +105,7 @@ static struct dentry *ve_dev_mount(struct file_system_type *fs_type, int flags,
 static struct dentry *dev_mount(struct file_system_type *fs_type, int flags,
 		      const char *dev_name, void *data)
 {
-	if (get_exec_env()->init_cred->user_ns != current_user_ns())
+	if (!current_user_ns_initial())
 		return ERR_PTR(-EPERM);
 
 #ifdef CONFIG_VE