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authorTejun Heo <tj@kernel.org>2014-02-03 14:09:15 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-07 16:00:41 -0800
commit0c23b2259a4850494e2c53e864ea840597c6cdd3 (patch)
treef4d061ea433e443edd43d1f0a186e06aeb2ed95e /fs/sysfs
parent2536390da0d300b2734c721235c082498879841d (diff)
downloadlinux-0c23b2259a4850494e2c53e864ea840597c6cdd3.tar.bz2
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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