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authorJens Axboe <axboe@fb.com>2017-04-20 09:37:05 -0600
committerJens Axboe <axboe@fb.com>2017-04-20 09:39:12 -0600
commit659b3394eb67a5e274d7e7348633b508510a5c8f (patch)
treebf5c271fbf873d2605967986a4d6fe5e6e8468c9
parent8c9ff1addad515037abc1b14684f9d6fd480c247 (diff)
bfq: fix compile error if CONFIG_CGROUPS=n
If we don't have CGROUPS enabled, the compile ends in the following misery: 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[]; ^ Move the declarations under the right ifdef. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--block/bfq-iosched.h5
1 files changed, 2 insertions, 3 deletions
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