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authorJens Axboe <axboe@kernel.dk>2021-10-12 09:24:29 -0600
committerJens Axboe <axboe@kernel.dk>2021-10-18 14:40:40 -0600
commit5a72e899ceb465d731c413d57c6c12cdbf88303c (patch)
treeb6e745cb41973b698104f1b3b1d20684edb47395 /block/blk-mq.h
parent013a7f95438144f4ab39a1017a0bff2765d2551a (diff)
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.h3
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);