On Tue, Apr 15, 2008 at 04:56:01PM -0700, akpm@linux-foundation.org wrote:
quoted text
> --- a/fs/afs/proc.c~afs-use-non-racy-method-for-proc-entries-creation
> +++ a/fs/afs/proc.c
> @@ -395,26 +396,20 @@ int afs_proc_cell_setup(struct afs_cell 
>  	if (!cell->proc_dir)
>  		goto error_dir;
>  
> -	p = create_proc_entry("servers", 0, cell->proc_dir);
> +	p = proc_create_data("servers", 0, cell->proc_dir,
> +			     &afs_proc_cell_servers_fops, cell);
>  	if (!p)
>  		goto error_servers;
> -	p->proc_fops = &afs_proc_cell_servers_fops;
> -	p->owner = THIS_MODULE;
> -	p->data = cell;
>  
> -	p = create_proc_entry("vlservers", 0, cell->proc_dir);
> +	p = proc_create_data("vlservers", 0, cell->proc_dir,
> +			     &afs_proc_cell_vlservers_fops, cell);
>  	if (!p)
>  		goto error_vlservers;
> -	p->proc_fops = &afs_proc_cell_vlservers_fops;
> -	p->owner = THIS_MODULE;
> -	p->data = cell;
>  
> -	p = create_proc_entry("volumes", 0, cell->proc_dir);
> +	p = proc_create_data("volumes", 0, cell->proc_dir,
> +			     &afs_proc_cell_volumes_fops, cell);
>  	if (!p)
>  		goto error_volumes;
> -	p->proc_fops = &afs_proc_cell_volumes_fops;
> -	p->owner = THIS_MODULE;
> -	p->data = cell;

Checks for NULL "cell" are still in place, however.
In afs_proc_cell_servers_open(), afs_proc_cell_vlservers_open(), and
afs_proc_cell_volumes_fops().

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