Re: [PATCH v1 1/2] zsmalloc: zs_object_copy: add clarifying comment

[Sergey Senozhatsky]

On (22/08/11 18:37), Alexey Romanov wrote:
> @@ -1564,6 +1564,12 @@ static void zs_object_copy(struct size_class *class, unsigned long dst,
>  		d_off += size;
>  		d_size -= size;
>  
> +		/* Calling kunmap_atomic(d_addr) is necessary. kunmap_atomic() calls
> +		 * must occurs in reverse order of calls to kmap_atomic().
> +		 * So, to call kunmap_atomic(s_addr) we should first call kunmap_atomic(d_addr).
> +		 * For more details see:
> +		 * https://lore.kernel.org/linux-mm/5512421D.4000603@xxxxxxxxxxx/
> +		 */

I'd drop the link part, Emails are not documentation, kmap_atomic
is documented in Documentation/mm/highmem