diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-10-12 09:24:29 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-18 14:40:40 -0600 |
| commit | 5a72e899ceb465d731c413d57c6c12cdbf88303c (patch) | |
| tree | b6e745cb41973b698104f1b3b1d20684edb47395 /block/blk-mq.c | |
| parent | 013a7f95438144f4ab39a1017a0bff2765d2551a (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.c')
| -rw-r--r-- | block/blk-mq.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 74505b545dd3..79c25b64e8b0 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -4174,14 +4174,14 @@ static bool blk_mq_poll_hybrid(struct request_queue *q, blk_qc_t qc) } static int blk_mq_poll_classic(struct request_queue *q, blk_qc_t cookie, - unsigned int flags) + struct io_comp_batch *iob, unsigned int flags) { struct blk_mq_hw_ctx *hctx = blk_qc_to_hctx(q, cookie); long state = get_current_state(); int ret; do { - ret = q->mq_ops->poll(hctx); + ret = q->mq_ops->poll(hctx, iob); if (ret > 0) { __set_current_state(TASK_RUNNING); return ret; @@ -4201,14 +4201,15 @@ static int blk_mq_poll_classic(struct request_queue *q, blk_qc_t cookie, return 0; } -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) { if (!(flags & BLK_POLL_NOSLEEP) && q->poll_nsec != BLK_MQ_POLL_CLASSIC) { if (blk_mq_poll_hybrid(q, cookie)) return 1; } - return blk_mq_poll_classic(q, cookie, flags); + return blk_mq_poll_classic(q, cookie, iob, flags); } unsigned int blk_mq_rq_cpu(struct request *rq) |