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authorMing Lei <tom.leiming@gmail.com>2013-12-26 21:31:35 +0800
committerJens Axboe <axboe@kernel.dk>2013-12-31 09:53:05 -0700
commit43a5e4e21964a6efb4d14a34644ec7109d0ae891 (patch)
tree9ff635ec990583c0877d4056841d35e6018825a1 /block/blk-mq.h
parentb28bc9b38c52f63f43e3fd875af982f2240a2859 (diff)
downloadlinux-43a5e4e21964a6efb4d14a34644ec7109d0ae891.tar.bz2
block: blk-mq: support draining mq queue
blk_mq_drain_queue() is introduced so that we can drain mq queue inside blk_cleanup_queue(). Also don't accept new requests any more if queue is marked as dying. Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.h')
-rw-r--r--block/blk-mq.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 52bf1f96a2c2..caa614f24409 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -27,6 +27,7 @@ void blk_mq_complete_request(struct request *rq, int error);
void blk_mq_run_request(struct request *rq, bool run_queue, bool async);
void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async);
void blk_mq_init_flush(struct request_queue *q);
+void blk_mq_drain_queue(struct request_queue *q);
/*
* CPU hotplug helpers