linux-kernel - Re: [PATCH 11/14] nfs: idr_destroy() no longer needs idr_remove

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Message-ID: <20130129225848.GD6219@fieldses.org>
Date:	Tue, 29 Jan 2013 17:58:48 -0500
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	akpm@...ux-foundation.org, rusty@...tcorp.com.au,
	linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org,
	Trond Myklebust <trond@...app.com>
Subject: Re: [PATCH 11/14] nfs: idr_destroy() no longer needs idr_remove_all()

On Fri, Jan 25, 2013 at 05:31:09PM -0800, Tejun Heo wrote:
> idr_destroy() can destroy idr by itself and idr_remove_all() is being
> deprecated.  Drop reference to idr_remove_all().  Note that the code
> wasn't completely correct before because idr_remove() on all entries
> doesn't necessarily release all idr_layers which could lead to memory
> leak.

Seems fine, but actually this is client-side so I think you meant the cc
to be to Trond.

--b.

> 
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Cc: "J. Bruce Fields" <bfields@...ldses.org>
> Cc: linux-nfs@...r.kernel.org
> ---
> This patch depends on an earlier idr patch and given the trivial
> nature of the patch, I think it would be best to route these together
> through -mm.  Please holler if there's any objection.
> 
> Thanks.
> 
>  fs/nfs/client.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/fs/nfs/client.c b/fs/nfs/client.c
> index 9f3c664..84d8eae 100644
> --- a/fs/nfs/client.c
> +++ b/fs/nfs/client.c
> @@ -197,7 +197,6 @@ error_0:
>  EXPORT_SYMBOL_GPL(nfs_alloc_client);
>  
>  #if IS_ENABLED(CONFIG_NFS_V4)
> -/* idr_remove_all is not needed as all id's are removed by nfs_put_client */
>  void nfs_cleanup_cb_ident_idr(struct net *net)
>  {
>  	struct nfs_net *nn = net_generic(net, nfs_net_id);
> -- 
> 1.8.1
> 
--
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