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Re: [PATCH] fix sparse shadowed variable warnings

To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH] fix sparse shadowed variable warnings
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Sat, 14 Jul 2007 11:44:12 -0500
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20070714160825.GD7768@lst.de>
References: <20070714160825.GD7768@lst.de>
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Thunderbird 2.0.0.4 (Macintosh/20070604)
Christoph Hellwig wrote:
>  - in xfs_probe_cluster rename the inner len to pg_len.  There's no harm
>    here because the utter len isn't used after the inner len comes into
>    existance but it keeps the code clean.
>  - in xfs_da_do_buf remove the inner i because both useage don't overlap
>    and they are the same type.
> 

Looks fine

-Eric

> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> 
> Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_aops.c
> ===================================================================
> --- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_aops.c    2007-07-14 
> 16:02:19.000000000 +0200
> +++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_aops.c 2007-07-14 16:03:09.000000000 
> +0200
> @@ -652,7 +652,7 @@ xfs_probe_cluster(
>  
>               for (i = 0; i < pagevec_count(&pvec); i++) {
>                       struct page *page = pvec.pages[i];
> -                     size_t pg_offset, len = 0;
> +                     size_t pg_offset, pg_len = 0;
>  
>                       if (tindex == tlast) {
>                               pg_offset =
> @@ -665,16 +665,16 @@ xfs_probe_cluster(
>                               pg_offset = PAGE_CACHE_SIZE;
>  
>                       if (page->index == tindex && !TestSetPageLocked(page)) {
> -                             len = xfs_probe_page(page, pg_offset, mapped);
> +                             pg_len = xfs_probe_page(page, pg_offset, 
> mapped);
>                               unlock_page(page);
>                       }
>  
> -                     if (!len) {
> +                     if (!pg_len) {
>                               done = 1;
>                               break;
>                       }
>  
> -                     total += len;
> +                     total += pg_len;
>                       tindex++;
>               }
>  
> Index: linux-2.6-xfs/fs/xfs/xfs_da_btree.c
> ===================================================================
> --- linux-2.6-xfs.orig/fs/xfs/xfs_da_btree.c  2007-07-14 16:01:43.000000000 
> +0200
> +++ linux-2.6-xfs/fs/xfs/xfs_da_btree.c       2007-07-14 16:02:01.000000000 
> +0200
> @@ -1975,7 +1975,6 @@ xfs_da_do_buf(
>               error = mappedbno == -2 ? 0 : XFS_ERROR(EFSCORRUPTED);
>               if (unlikely(error == EFSCORRUPTED)) {
>                       if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
> -                             int     i;
>                               cmn_err(CE_ALERT, "xfs_da_do_buf: bno %lld\n",
>                                       (long long)bno);
>                               cmn_err(CE_ALERT, "dir: inode %lld\n",
> 
> 


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