ACK: [SRU][D][linux-kvm][PATCH] mm/zsmalloc.c: fix build when CONFIG_COMPACTION=n

[Colin Ian King]

On 06/09/2019 16:47, Andrea Righi wrote:
> Fixes: 701d678599d0c1 ("mm/zsmalloc.c: fix race condition in zs_destroy_pool")
> Link: http://lkml.kernel.org/r/201908251039.5oSbEEUT%25lkp@intel.com
> Reported-by: kbuild test robot <lkp at intel.com>
> Cc: Sergey Senozhatsky <sergey.senozhatsky at gmail.com>
> Cc: Henry Burns <henrywolfeburns at gmail.com>
> Cc: Minchan Kim <minchan at kernel.org>
> Cc: Shakeel Butt <shakeelb at google.com>
> Cc: Jonathan Adams <jwadams at google.com>
> Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
> Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
> (cherry picked from commit 441e254cd40dc03beec3c650ce6ce6074bc6517f)
> Signed-off-by: Andrea Righi <andrea.righi at canonical.com>
> ---
>  mm/zsmalloc.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
> index 515b00801af2..7d62ef2daf83 100644
> --- a/mm/zsmalloc.c
> +++ b/mm/zsmalloc.c
> @@ -2432,7 +2432,9 @@ struct zs_pool *zs_create_pool(const char *name)
>  	if (!pool->name)
>  		goto err;
>  
> +#ifdef CONFIG_COMPACTION
>  	init_waitqueue_head(&pool->migration_wait);
> +#endif
>  
>  	if (create_cache(pool))
>  		goto err;
> 
Thanks Andrea for the speedy turnaround.

Acked-by: Colin Ian King <colin.king at canonical.com>