Re: [PATCH] NFS: Replace null dentries that appear in readdir's list

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On Wed, 2006-08-16 at 17:15 +0100, David Howells wrote:

>  fs/nfs/dir.c |    9 +++++++--
>  1 files changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
> index e746ed1..bb8b5f0 100644
> --- a/fs/nfs/dir.c
> +++ b/fs/nfs/dir.c
> @@ -1105,8 +1105,13 @@ static struct dentry *nfs_readdir_lookup
>  	}
>  	name.hash = full_name_hash(name.name, name.len);
>  	dentry = d_lookup(parent, &name);
> -	if (dentry != NULL)
> -		return dentry;
> +	if (dentry != NULL) {
> +		/* negative dentries must be reconsidered */
> +		if (!IS_ERR(dentry) && !dentry->d_inode)
> +			d_drop(dentry);

Don't we need to return something like NULL here also?

> +		else
> +			return dentry;
> +	}
>  	if (!desc->plus || !(entry->fattr->valid & NFS_ATTR_FATTR))
>  		return NULL;
>  	/* Note: caller is already holding the dir->i_mutex! */
-
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