Re: [PATCH] kernfs: fix a subdir count leak

[Tejun Heo]

On Thu, Apr 17, 2014 at 05:52:10PM +0800, Jianyu Zhan wrote:
> Currently kernfs_link_sibling() increates parent->dir.subdirs before
> adding the node into parent's chidren rb tree.
> 
> Because it is possible that kernfs_link_sibling() couldn't find
> a suitable slot and bail out, this leads to a mismatch between
> elevated subdir count with actual children node numbers.
> 
> This patches fix this problem, by moving the subdir accouting
> after the actual addtion happening.
> 
> Signed-off-by: Jianyu Zhan <nasa4836@xxxxxxxxx>

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

-- 
tejun
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