From: Tejun Heo <tj@kernel.org>
Date: Mon, 3 Feb 2014 19:09:15 +0000 (-0500)
Subject: kernfs: implement kernfs_node_from_dentry(), kernfs_root_from_sb() and kernfs_rename()
X-Git-Tag: v3.15-rc1~140^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c23b2259a4850494e2c53e864ea840597c6cdd3;p=pandora-kernel.git

kernfs: implement kernfs_node_from_dentry(), kernfs_root_from_sb() and kernfs_rename()

Implement helpers to determine node from dentry and root from
super_block.  Also add a kernfs_rename_ns() wrapper which assumes NULL
namespace.  These generally make sense and will be used by cgroup.

v2: Some dummy implementations for !CONFIG_SYSFS was missing.  Fixed.
    Reported by kbuild test robot.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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