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author | Jens Axboe <axboe@kernel.dk> | 2021-10-12 09:24:29 -0600 |
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committer | Jens Axboe <axboe@kernel.dk> | 2021-10-18 14:40:40 -0600 |
commit | 5a72e899ceb465d731c413d57c6c12cdbf88303c (patch) | |
tree | b6e745cb41973b698104f1b3b1d20684edb47395 /block/blk-mq.h | |
parent | 013a7f95438144f4ab39a1017a0bff2765d2551a (diff) | |
download | linux-5a72e899ceb465d731c413d57c6c12cdbf88303c.tar.bz2 |
block: add a struct io_comp_batch argument to fops->iopoll()
struct io_comp_batch contains a list head and a completion handler, which
will allow completions to more effciently completed batches of IO.
For now, no functional changes in this patch, we just define the
io_comp_batch structure and add the argument to the file_operations iopoll
handler.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.h')
-rw-r--r-- | block/blk-mq.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h index 1b91a3fdaa01..ebf67f4d4f2e 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -31,7 +31,8 @@ struct blk_mq_ctx { } ____cacheline_aligned_in_smp; void blk_mq_submit_bio(struct bio *bio); -int blk_mq_poll(struct request_queue *q, blk_qc_t cookie, unsigned int flags); +int blk_mq_poll(struct request_queue *q, blk_qc_t cookie, struct io_comp_batch *iob, + unsigned int flags); void blk_mq_exit_queue(struct request_queue *q); int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr); void blk_mq_wake_waiters(struct request_queue *q); |