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authorChristoph Hellwig <hch@lst.de>2014-04-16 09:44:52 +0200
committerJens Axboe <axboe@fb.com>2014-04-16 14:15:25 -0600
commit63151a449ebaef062ffac5b302206565ff5ef62e (patch)
treed53d4090b1d92761b04baf47e0efb6ca5c860263 /include/linux/blk-mq.h
parent6700a678c02e47b6d50c51da2a46ff80efedb8c7 (diff)
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blk-mq: allow drivers to hook into I/O completion
Split out the bottom half of blk_mq_end_io so that drivers can perform work when they know a request has been completed, but before it has been freed. This also obsoletes blk_mq_end_io_partial as drivers can now pass any value to blk_update_request directly. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blk-mq.h')
-rw-r--r--include/linux/blk-mq.h9
1 files changed, 2 insertions, 7 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index a4ea0ce83b07..a81b474b794f 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -149,13 +149,8 @@ struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *, const int ctx_ind
struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_tag_set *, unsigned int);
void blk_mq_free_single_hw_queue(struct blk_mq_hw_ctx *, unsigned int);
-bool blk_mq_end_io_partial(struct request *rq, int error,
- unsigned int nr_bytes);
-static inline void blk_mq_end_io(struct request *rq, int error)
-{
- bool done = !blk_mq_end_io_partial(rq, error, blk_rq_bytes(rq));
- BUG_ON(!done);
-}
+void blk_mq_end_io(struct request *rq, int error);
+void __blk_mq_end_io(struct request *rq, int error);
void blk_mq_complete_request(struct request *rq);