diff mbox

pnfsblock: use list_move_tail instead of list_del/list_add_tail

Message ID CAPgLHd8a+6FGVDScg25XGKc8bAZDdkS6aU4tmknyDMKvZ-DgDg@mail.gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Wei Yongjun Sept. 5, 2012, 6:38 a.m. UTC
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Using list_move_tail() instead of list_del() + list_add_tail().

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
 fs/nfs/blocklayout/extents.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)



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Comments

tao.peng@emc.com Sept. 10, 2012, 2:08 a.m. UTC | #1
> -----Original Message-----

> From: linux-nfs-owner@vger.kernel.org [mailto:linux-nfs-owner@vger.kernel.org] On Behalf Of Wei

> Yongjun

> Sent: Wednesday, September 05, 2012 2:38 PM

> To: Trond.Myklebust@netapp.com

> Cc: yongjun_wei@trendmicro.com.cn; linux-nfs@vger.kernel.org

> Subject: [PATCH] pnfsblock: use list_move_tail instead of list_del/list_add_tail

> 

> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

> 

> Using list_move_tail() instead of list_del() + list_add_tail().

> 

> spatch with a semantic match is used to found this problem.

> (http://coccinelle.lip6.fr/)

> 

> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

This looks good. Thanks!

Reviewed-by: Peng Tao <tao.peng@emc.com>

> ---

>  fs/nfs/blocklayout/extents.c | 3 +--

>  1 file changed, 1 insertion(+), 2 deletions(-)

> 

> diff --git a/fs/nfs/blocklayout/extents.c b/fs/nfs/blocklayout/extents.c

> index 1f9a603..9c3e117 100644

> --- a/fs/nfs/blocklayout/extents.c

> +++ b/fs/nfs/blocklayout/extents.c

> @@ -683,8 +683,7 @@ encode_pnfs_block_layoutupdate(struct pnfs_block_layout *bl,

>  		p = xdr_encode_hyper(p, lce->bse_length << SECTOR_SHIFT);

>  		p = xdr_encode_hyper(p, 0LL);

>  		*p++ = cpu_to_be32(PNFS_BLOCK_READWRITE_DATA);

> -		list_del(&lce->bse_node);

> -		list_add_tail(&lce->bse_node, &bl->bl_committing);

> +		list_move_tail(&lce->bse_node, &bl->bl_committing);

>  		bl->bl_count--;

>  		count++;

>  	}

> 

> 

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diff mbox

Patch

diff --git a/fs/nfs/blocklayout/extents.c b/fs/nfs/blocklayout/extents.c
index 1f9a603..9c3e117 100644
--- a/fs/nfs/blocklayout/extents.c
+++ b/fs/nfs/blocklayout/extents.c
@@ -683,8 +683,7 @@  encode_pnfs_block_layoutupdate(struct pnfs_block_layout *bl,
 		p = xdr_encode_hyper(p, lce->bse_length << SECTOR_SHIFT);
 		p = xdr_encode_hyper(p, 0LL);
 		*p++ = cpu_to_be32(PNFS_BLOCK_READWRITE_DATA);
-		list_del(&lce->bse_node);
-		list_add_tail(&lce->bse_node, &bl->bl_committing);
+		list_move_tail(&lce->bse_node, &bl->bl_committing);
 		bl->bl_count--;
 		count++;
 	}