Re: [PATCH v2] nfs: fix kernel warning when removing proc entry

From: Al Viro
Date: Wed Aug 27 2014 - 21:41:30 EST

On Tue, Aug 19, 2014 at 09:20:38PM -0700, Eric W. Biederman wrote:
> Cong Wang <xiyou.wangcong@xxxxxxxxx> writes:
> > I saw the following kernel warning:
> Cong thanks for finding and tracking this. I was clearly asleep at the
> switch when I was testing my fix to the nfs client code :(
> I have applied this patch and will push it to Linus after it has a
> little bit to sit in linux-next.

Why does that code wank with one-by-one remove_proc_entry(), BTW?
remove_proc_subtree("nfsfs", net->proc_net) will take care of the whole pile
just fine, TYVM... While we are it, there's no need to keep ->proc_nfsfs
at all - just have it in a local variable in nfs_fs_proc_net_init().
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