Re: [PATCH 22/39] nfsd: drop null test before destroy functions

From: J. Bruce Fields
Date: Mon Sep 14 2015 - 12:07:05 EST


Thanks, applying.--b.

On Sun, Sep 13, 2015 at 02:15:15PM +0200, Julia Lawall wrote:
> Remove unneeded NULL test.
>
> The semantic patch that makes this change is as follows:
> (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@ expression x; @@
> -if (x != NULL) {
> \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
> x = NULL;
> -}
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> ---
> fs/nfsd/nfscache.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
> index 46ec934..116940c 100644
> --- a/fs/nfsd/nfscache.c
> +++ b/fs/nfsd/nfscache.c
> @@ -217,10 +217,8 @@ void nfsd_reply_cache_shutdown(void)
> drc_hashtbl = NULL;
> drc_hashsize = 0;
>
> - if (drc_slab) {
> - kmem_cache_destroy(drc_slab);
> - drc_slab = NULL;
> - }
> + kmem_cache_destroy(drc_slab);
> + drc_slab = NULL;
> }
>
> /*
--
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