Re: [PATCH] cgroup: fix bogus kernel warnings when cgroup_create()failed

[Tejun Heo]

On Mon, Jan 21, 2013 at 06:18:33PM +0800, Li Zefan wrote:
> If cgroup_create() failed and cgroup_destroy_locked() is called to
> do cleanup, we'll see a bunch of warnings:
> 
> cgroup_addrm_files: failed to remove 2MB.limit_in_bytes, err=-2
> cgroup_addrm_files: failed to remove 2MB.usage_in_bytes, err=-2
> cgroup_addrm_files: failed to remove 2MB.max_usage_in_bytes, err=-2
> cgroup_addrm_files: failed to remove 2MB.failcnt, err=-2
> cgroup_addrm_files: failed to remove prioidx, err=-2
> cgroup_addrm_files: failed to remove ifpriomap, err=-2
> ...
> 
> We failed to remove those files, because cgroup_create() has failed
> before creating those cgroup files.
> 
> To fix this, we simply don't warn if cgroup_rm_file() can't find the
> cft entry.
> 
> Signed-off-by: Li Zefan <lizefan@xxxxxxxxxx>

Applied to cgroup/for-3.9.  Thanks!

-- 
tejun
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