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authorBart Van Assche <bart.vanassche@sandisk.com>2016-10-28 17:19:15 -0700
committerJens Axboe <axboe@fb.com>2016-11-02 12:50:19 -0600
commit5d1b25c1ecabb37f8eb58c8e9dd74f77f703e5d9 (patch)
treeb2d41828dd60300ca642af710fe633db3ad6536f /block/blk-mq.h
parentbc27c01b5c46d3bfec42c96537c7a3fae0bb2cc4 (diff)
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blk-mq: Introduce blk_mq_hctx_stopped()
Multiple functions test the BLK_MQ_S_STOPPED bit so introduce a helper function that performs this test. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Ming Lei <tom.leiming@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq.h')
-rw-r--r--block/blk-mq.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h
index e5d25249028c..ac772dac7ce8 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -100,6 +100,11 @@ static inline void blk_mq_set_alloc_data(struct blk_mq_alloc_data *data,
data->hctx = hctx;
}
+static inline bool blk_mq_hctx_stopped(struct blk_mq_hw_ctx *hctx)
+{
+ return test_bit(BLK_MQ_S_STOPPED, &hctx->state);
+}
+
static inline bool blk_mq_hw_queue_mapped(struct blk_mq_hw_ctx *hctx)
{
return hctx->nr_ctx && hctx->tags;