[Cluster-devel] [Patch 24/44] fsck.gfs2 pass2: Refactor function set_dotdor_dir

[Steven Whitehouse]

Hi,

On Thu, 2011-08-11 at 17:09 -0400, Bob Peterson wrote:
> >From 7a2fc9138955e93fd525f5ec035e7ab2b57f0a8c Mon Sep 17 00:00:00 2001
> From: Bob Peterson <rpeterso at redhat.com>
> Date: Tue, 9 Aug 2011 12:45:18 -0500
> Subject: [PATCH 24/44] fsck.gfs pass2: Refactor function set_dotdor_dir
> 
> This patch refactors function set_dotdot_dir to make it more readable.
> 
> rhbz#675723
> ---
>  gfs2/fsck/pass2.c |   53 +++++++++++++++++++++++++++--------------------------
>  1 files changed, 27 insertions(+), 26 deletions(-)
> 
> diff --git a/gfs2/fsck/pass2.c b/gfs2/fsck/pass2.c
> index 01f8000..870a792 100644
> --- a/gfs2/fsck/pass2.c
> +++ b/gfs2/fsck/pass2.c
> @@ -61,39 +61,40 @@ static int set_parent_dir(struct gfs2_sbd *sdp, uint64_t childblock,
>  
>  /* Set's the child's '..' directory inode number in dir_info structure */
>  static int set_dotdot_dir(struct gfs2_sbd *sdp, uint64_t childblock,
> -				   uint64_t parentblock)
> +			  uint64_t parentblock)
>  {
>  	struct dir_info *di;
>  
>  	di = dirtree_find(childblock);
> -	if (di) {
> -		if (di->dinode == childblock) {
> -			/* Special case for root inode because we set
> -			 * it earlier */
> -			if (di->dotdot_parent && sdp->md.rooti->i_di.di_num.no_addr
> -			   != di->dinode) {
> -				/* This should never happen */
> -				log_crit( _("Dotdot parent already set for"
> -					    " block %llu (0x%llx) -> %llu"
> -					    " (0x%llx)\n"),
> -					 (unsigned long long)childblock,
> -					 (unsigned long long)childblock,
> -					 (unsigned long long)di->dotdot_parent,
> -					 (unsigned long long)di->dotdot_parent);
> -				return -1;
> -			}
Should this apply to the master inode too?

Steve.

> -			di->dotdot_parent = parentblock;
> -		}
> -	} else {
> -		log_err( _("Unable to find block %llu (0x%llx"
> -			   ") in dir_info list\n"),
> -			(unsigned long long)childblock,
> -			(unsigned long long)childblock);
> +	if (!di) {
> +		log_err( _("Unable to find block %"PRIu64" (0x%" PRIx64
> +			   ") in dir_info tree\n"), childblock, childblock);
>  		return -1;
>  	}
> -
> +	if (di->dinode != childblock) {
> +		log_debug("'..' doesn't point to what we found: childblock "
> +			  "0x%llx != dinode 0x%llx\n",
> +			  (unsigned long long)childblock,
> +			  (unsigned long long)di->dinode);
> +		return -1;
> +	}
> +	/* Special case for root inode because we set it earlier */
> +	if (di->dotdot_parent &&
> +	    sdp->md.rooti->i_di.di_num.no_addr != di->dinode) {
> +		/* This should never happen */
> +		log_crit( _("Dotdot parent already set for block %llu (0x%llx)"
> +			    "-> %llu (0x%llx)\n"),
> +			  (unsigned long long)childblock,
> +			  (unsigned long long)childblock,
> +			  (unsigned long long)di->dotdot_parent,
> +			  (unsigned long long)di->dotdot_parent);
> +		return -1;
> +	}
> +	log_debug("Setting '..' for directory block 0x%llx to parent 0x%llx\n",
> +		  (unsigned long long)childblock,
> +		  (unsigned long long)parentblock);
> +	di->dotdot_parent = parentblock;
>  	return 0;
> -
>  }
>  
>  static int check_eattr_indir(struct gfs2_inode *ip, uint64_t block,