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From: Tejun Heo <tj@kernel.org>
Newsgroups: linux.kernel
Subject: Re: [PATCH V4 07/12] cgroup: export fhandle info for a cgroup
Date: Wed, 28 Jun 2017 20:20:03 +0200
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On Wed, Jun 28, 2017 at 09:29:57AM -0700, Shaohua Li wrote:
> From: Shaohua Li <shli@fb.com>
> 
> Add an API to export cgroup fhandle info. We don't export a full 'struct
> file_handle', there are unrequired info. Sepcifically, cgroup is always
> a directory, so we don't need a 'FILEID_INO32_GEN_PARENT' type fhandle,
> we only need export the inode number and generation number just like
> what generic_fh_to_dentry does. And we can avoid the overhead of getting
> an inode too, since kernfs_node_id (ino and generation) has all the info
> required.
> 
> Signed-off-by: Shaohua Li <shli@fb.com>

Acked-by: Tejun Heo <tj@kernel.org>

Thanks.

-- 
tejun