[dm-devel] [PATCH 1/2] [device-mapper] Document the fact that iterate_device method shouldn't block.

[Mikulas Patocka]

Ack.

Mikulas

On Fri, 21 Oct 2011, Joe Thornber wrote:

> ---
>  include/linux/device-mapper.h |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
> index aa09503..8ceb13a 100644
> --- a/include/linux/device-mapper.h
> +++ b/include/linux/device-mapper.h
> @@ -148,6 +148,10 @@ struct target_type {
>  	dm_ioctl_fn ioctl;
>  	dm_merge_fn merge;
>  	dm_busy_fn busy;
> +
> +	/*
> +	 * iterate_devices must not block.
> +	 */
>  	dm_iterate_devices_fn iterate_devices;
>  	dm_io_hints_fn io_hints;
>  
> -- 
> 1.7.5.4
>