linux-kernel - Re: linux-next: Tree for Apr 20 (bfq)

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Message-ID: <c2bd1807-8911-747e-24f5-b5b556e58b8b@kernel.dk>
Date:   Thu, 20 Apr 2017 09:36:54 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Randy Dunlap <rdunlap@...radead.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Paolo Valente <paolo.valente@...aro.org>
Subject: Re: linux-next: Tree for Apr 20 (bfq)

On 04/20/2017 09:24 AM, Randy Dunlap wrote:
> On 04/19/17 23:43, Stephen Rothwell wrote:
>> Hi all,
>>
>> Changes since 20170419:
>>
> 
> on i386:
> when CONFIG_CGROUPS is not enabled:
> 
> In file included from ../block/bfq-iosched.c:105:0:
> ../block/bfq-iosched.h:819:22: error: array type has incomplete element type
>  extern struct cftype bfq_blkcg_legacy_files[];
>                       ^
> ../block/bfq-iosched.h:820:22: error: array type has incomplete element type
>  extern struct cftype bfq_blkg_files[];

This should fix it:


diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index 4ce7915e8d84..ae783c06dfd9 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -816,9 +816,6 @@ void bfq_put_async_queues(struct bfq_data *bfqd, struct bfq_group *bfqg);
 
 /* ---------------- cgroups-support interface ---------------- */
 
-extern struct cftype bfq_blkcg_legacy_files[];
-extern struct cftype bfq_blkg_files[];
-
 void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq,
 			      unsigned int op);
 void bfqg_stats_update_io_remove(struct bfq_group *bfqg, unsigned int op);
@@ -844,6 +841,8 @@ struct bfq_group *bfq_create_group_hierarchy(struct bfq_data *bfqd, int node);
 void bfqg_put(struct bfq_group *bfqg);
 
 #ifdef CONFIG_BFQ_GROUP_IOSCHED
+extern struct cftype bfq_blkcg_legacy_files[];
+extern struct cftype bfq_blkg_files[];
 extern struct blkcg_policy blkcg_policy_bfq;
 #endif
 

-- 
Jens Axboe