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authorMing Lei <ming.lei@redhat.com>2019-07-24 06:48:39 +0300
committerJens Axboe <axboe@kernel.dk>2019-08-05 06:41:29 +0300
commitaa306ab703e9452b1e25cc8e8f04b8df523d0bb8 (patch)
tree788e30753358ef836231752766f417c9540018cb /block
parente21a712a9685488f5ce80495b37b9fdbe96c230d (diff)
downloadlinux-aa306ab703e9452b1e25cc8e8f04b8df523d0bb8.tar.xz
blk-mq: introduce blk_mq_request_completed()
NVMe needs this function to decide if one request to be aborted has been completed in normal IO path already. So introduce it. Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Sagi Grimberg <sagi@grimberg.me> Cc: Keith Busch <keith.busch@intel.com> Cc: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-mq.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index f78d3287dd82..8bb5854a62f3 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -665,6 +665,12 @@ int blk_mq_request_started(struct request *rq)
}
EXPORT_SYMBOL_GPL(blk_mq_request_started);
+int blk_mq_request_completed(struct request *rq)
+{
+ return blk_mq_rq_state(rq) == MQ_RQ_COMPLETE;
+}
+EXPORT_SYMBOL_GPL(blk_mq_request_completed);
+
void blk_mq_start_request(struct request *rq)
{
struct request_queue *q = rq->q;