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authorSagi Grimberg <sagi@grimberg.me>2018-12-14 22:06:06 +0300
committerChristoph Hellwig <hch@lst.de>2018-12-18 19:50:47 +0300
commit7b7ab780a048699d2b9f416bf2d5c089d8d1028c (patch)
treef0bed21ab970400a453daa63ee4d44e5c170246d /include/linux/blk-mq.h
parent56a77d26d6316a3936497236c7e3a6a98fad950c (diff)
downloadlinux-7b7ab780a048699d2b9f416bf2d5c089d8d1028c.tar.xz
block: make request_to_qc_t public
block consumers will need it for polling requests that are sent with blk_execute_rq_nowait. Also, get rid of blk_tag_to_qc_t and open-code it instead. Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/blk-mq.h')
-rw-r--r--include/linux/blk-mq.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index d3c0a0d2680b..0e030f5f76b6 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -357,4 +357,14 @@ static inline void *blk_mq_rq_to_pdu(struct request *rq)
for ((i) = 0; (i) < (hctx)->nr_ctx && \
({ ctx = (hctx)->ctxs[(i)]; 1; }); (i)++)
+static inline blk_qc_t request_to_qc_t(struct blk_mq_hw_ctx *hctx,
+ struct request *rq)
+{
+ if (rq->tag != -1)
+ return rq->tag | (hctx->queue_num << BLK_QC_T_SHIFT);
+
+ return rq->internal_tag | (hctx->queue_num << BLK_QC_T_SHIFT) |
+ BLK_QC_T_INTERNAL;
+}
+
#endif