Vivek Goyal wrote:...> +> +struct io_group *io_get_io_group_bio(struct request_queue *q, struct bio *bio,> + int create)> +{> + struct page *page = NULL;> +> + /*> + * Determine the group from task context. Even calls from> + * blk_get_request() which don't have any bio info will be mapped> + * to the task's group> + */> + if (!bio)> + goto sync;> +> + if (bio_barrier(bio)) {> + /*> + * Map barrier requests to root group. May be more special> + * bio cases should come here> + */> + return q->elevator->efqd.root_group;> + }> +> + /* Map the sync bio to the right group using task context */> + if (elv_bio_sync(bio))> + goto sync;> +> +#ifdef CONFIG_TRACK_ASYNC_CONTEXT> + /* Determine the group from info stored in page */> + page = bio_iovec_idx(bio, 0)->bv_page;> + return io_get_io_group(q, page, create);> +#endif> +> +sync:> + return io_get_io_group(q, NULL, create);
Fix build warning.
block/elevator-fq.c: In function ‘io_get_io_group_bio’:block/elevator-fq.c:2075: warning: unused variable ‘page’
---diff --git a/block/elevator-fq.c b/block/elevator-fq.cindex 66b10eb..d304f79 100644--- a/block/elevator-fq.c+++ b/block/elevator-fq.c@@ -2102,7 +2102,7 @@ struct io_group *io_get_io_group_bio(struct request_queue *q, struct bio *bio, #endif sync:- return io_get_io_group(q, NULL, create);+ return io_get_io_group(q, page, create); } EXPORT_SYMBOL(io_get_io_group_bio);
> +}> +EXPORT_SYMBOL(io_get_io_group_bio);> +
-- RegardsGui Jianfeng
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