diff options
| author | Jens Axboe <axboe@kernel.dk> | 2022-09-21 15:19:54 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-09-30 07:49:09 -0600 |
| commit | de671d6116b5210097cd6fbb877bac92536f265b (patch) | |
| tree | c230b310a4475736c46dd83cb8207acd7dc90427 /block/blk-mq.c | |
| parent | 4b6a5d9cea911424e84107df8c4eb8317938d2cd (diff) | |
block: change request end_io handler to pass back a return value
Everything is just converted to returning RQ_END_IO_NONE, and there
should be no functional changes with this patch.
In preparation for allowing the end_io handler to pass ownership back
to the block layer, rather than retain ownership of the request.
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index b32f70f38c6e..a21631de45b3 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1001,7 +1001,8 @@ inline void __blk_mq_end_request(struct request *rq, blk_status_t error) if (rq->end_io) { rq_qos_done(rq->q, rq); - rq->end_io(rq, error); + if (rq->end_io(rq, error) == RQ_END_IO_FREE) + blk_mq_free_request(rq); } else { blk_mq_free_request(rq); } @@ -1295,12 +1296,13 @@ struct blk_rq_wait { blk_status_t ret; }; -static void blk_end_sync_rq(struct request *rq, blk_status_t ret) +static enum rq_end_io_ret blk_end_sync_rq(struct request *rq, blk_status_t ret) { struct blk_rq_wait *wait = rq->end_io_data; wait->ret = ret; complete(&wait->done); + return RQ_END_IO_NONE; } bool blk_rq_is_poll(struct request *rq) @@ -1534,10 +1536,12 @@ static bool blk_mq_req_expired(struct request *rq, unsigned long *next) void blk_mq_put_rq_ref(struct request *rq) { - if (is_flush_rq(rq)) - rq->end_io(rq, 0); - else if (req_ref_put_and_test(rq)) + if (is_flush_rq(rq)) { + if (rq->end_io(rq, 0) == RQ_END_IO_FREE) + blk_mq_free_request(rq); + } else if (req_ref_put_and_test(rq)) { __blk_mq_free_request(rq); + } } static bool blk_mq_check_expired(struct request *rq, void *priv) |