mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-23 23:00:50 +07:00
block: move ->make_request_fn to struct block_device_operations
The make_request_fn is a little weird in that it sits directly in struct request_queue instead of an operation vector. Replace it with a block_device_operations method called submit_bio (which describes much better what it does). Also remove the request_queue argument to it, as the queue can be derived pretty trivially from the bio. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
Jens Axboe
parent
e439ab710f
commit
c62b37d96b
@ -1036,7 +1036,7 @@ Now the generic block layer performs partition-remapping early and thus
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provides drivers with a sector number relative to whole device, rather than
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having to take partition number into account in order to arrive at the true
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sector number. The routine blk_partition_remap() is invoked by
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generic_make_request even before invoking the queue specific make_request_fn,
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generic_make_request even before invoking the queue specific ->submit_bio,
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so the i/o scheduler also gets to operate on whole disk sector numbers. This
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should typically not require changes to block drivers, it just never gets
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to invoke its own partition sector offset calculations since all bios
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@ -47,7 +47,7 @@ the Forced Unit Access is implemented. The REQ_PREFLUSH and REQ_FUA flags
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may both be set on a single bio.
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Implementation details for make_request_fn based block drivers
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Implementation details for bio based block drivers
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--------------------------------------------------------------
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These drivers will always see the REQ_PREFLUSH and REQ_FUA bits as they sit
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@ -59,7 +59,7 @@ struct nfhd_device {
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struct gendisk *disk;
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};
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static blk_qc_t nfhd_make_request(struct request_queue *queue, struct bio *bio)
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static blk_qc_t nfhd_submit_bio(struct bio *bio)
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{
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struct nfhd_device *dev = bio->bi_disk->private_data;
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struct bio_vec bvec;
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@ -93,6 +93,7 @@ static int nfhd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
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static const struct block_device_operations nfhd_ops = {
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.owner = THIS_MODULE,
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.submit_bio = nfhd_submit_bio,
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.getgeo = nfhd_getgeo,
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};
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@ -118,7 +119,7 @@ static int __init nfhd_init_one(int id, u32 blocks, u32 bsize)
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dev->bsize = bsize;
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dev->bshift = ffs(bsize) - 10;
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dev->queue = blk_alloc_queue(nfhd_make_request, NUMA_NO_NODE);
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dev->queue = blk_alloc_queue(NUMA_NO_NODE);
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if (dev->queue == NULL)
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goto free_dev;
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@ -101,7 +101,7 @@ static void simdisk_transfer(struct simdisk *dev, unsigned long sector,
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spin_unlock(&dev->lock);
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}
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static blk_qc_t simdisk_make_request(struct request_queue *q, struct bio *bio)
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static blk_qc_t simdisk_submit_bio(struct bio *bio)
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{
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struct simdisk *dev = bio->bi_disk->private_data;
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struct bio_vec bvec;
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@ -144,6 +144,7 @@ static void simdisk_release(struct gendisk *disk, fmode_t mode)
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static const struct block_device_operations simdisk_ops = {
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.owner = THIS_MODULE,
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.submit_bio = simdisk_submit_bio,
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.open = simdisk_open,
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.release = simdisk_release,
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};
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@ -267,7 +268,7 @@ static int __init simdisk_setup(struct simdisk *dev, int which,
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spin_lock_init(&dev->lock);
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dev->users = 0;
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dev->queue = blk_alloc_queue(simdisk_make_request, NUMA_NO_NODE);
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dev->queue = blk_alloc_queue(NUMA_NO_NODE);
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if (dev->queue == NULL) {
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pr_err("blk_alloc_queue failed\n");
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goto out_alloc_queue;
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@ -1012,7 +1012,7 @@ static int blkcg_css_online(struct cgroup_subsys_state *css)
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* blkcg_init_queue - initialize blkcg part of request queue
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* @q: request_queue to initialize
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*
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* Called from __blk_alloc_queue(). Responsible for initializing blkcg
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* Called from blk_alloc_queue(). Responsible for initializing blkcg
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* part of new request_queue @q.
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*
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* RETURNS:
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@ -283,7 +283,7 @@ EXPORT_SYMBOL(blk_dump_rq_flags);
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* A block device may call blk_sync_queue to ensure that any
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* such activity is cancelled, thus allowing it to release resources
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* that the callbacks might use. The caller must already have made sure
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* that its ->make_request_fn will not re-add plugging prior to calling
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* that its ->submit_bio will not re-add plugging prior to calling
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* this function.
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*
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* This function does not cancel any asynchronous activity arising
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@ -510,7 +510,7 @@ static void blk_timeout_work(struct work_struct *work)
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{
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}
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struct request_queue *__blk_alloc_queue(int node_id)
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struct request_queue *blk_alloc_queue(int node_id)
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{
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struct request_queue *q;
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int ret;
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@ -575,6 +575,7 @@ struct request_queue *__blk_alloc_queue(int node_id)
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blk_queue_dma_alignment(q, 511);
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blk_set_default_limits(&q->limits);
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q->nr_requests = BLKDEV_MAX_RQ;
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return q;
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@ -592,21 +593,6 @@ struct request_queue *__blk_alloc_queue(int node_id)
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kmem_cache_free(blk_requestq_cachep, q);
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return NULL;
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}
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struct request_queue *blk_alloc_queue(make_request_fn make_request, int node_id)
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{
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struct request_queue *q;
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if (WARN_ON_ONCE(!make_request))
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return NULL;
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q = __blk_alloc_queue(node_id);
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if (!q)
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return NULL;
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q->make_request_fn = make_request;
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q->nr_requests = BLKDEV_MAX_RQ;
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return q;
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}
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EXPORT_SYMBOL(blk_alloc_queue);
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/**
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@ -1088,15 +1074,15 @@ generic_make_request_checks(struct bio *bio)
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static blk_qc_t do_make_request(struct bio *bio)
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{
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struct request_queue *q = bio->bi_disk->queue;
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struct gendisk *disk = bio->bi_disk;
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blk_qc_t ret = BLK_QC_T_NONE;
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if (blk_crypto_bio_prep(&bio)) {
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if (!q->make_request_fn)
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return blk_mq_make_request(q, bio);
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ret = q->make_request_fn(q, bio);
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if (!disk->fops->submit_bio)
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return blk_mq_submit_bio(bio);
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ret = disk->fops->submit_bio(bio);
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}
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blk_queue_exit(q);
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blk_queue_exit(disk->queue);
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return ret;
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}
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@ -1113,10 +1099,9 @@ blk_qc_t generic_make_request(struct bio *bio)
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{
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/*
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* bio_list_on_stack[0] contains bios submitted by the current
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* make_request_fn.
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* bio_list_on_stack[1] contains bios that were submitted before
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* the current make_request_fn, but that haven't been processed
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* yet.
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* ->submit_bio.
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* bio_list_on_stack[1] contains bios that were submitted before the
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* current ->submit_bio_bio, but that haven't been processed yet.
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*/
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struct bio_list bio_list_on_stack[2];
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blk_qc_t ret = BLK_QC_T_NONE;
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@ -1125,10 +1110,10 @@ blk_qc_t generic_make_request(struct bio *bio)
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goto out;
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/*
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* We only want one ->make_request_fn to be active at a time, else
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* We only want one ->submit_bio to be active at a time, else
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* stack usage with stacked devices could be a problem. So use
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* current->bio_list to keep a list of requests submited by a
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* make_request_fn function. current->bio_list is also used as a
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* ->submit_bio method. current->bio_list is also used as a
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* flag to say if generic_make_request is currently active in this
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* task or not. If it is NULL, then no make_request is active. If
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* it is non-NULL, then a make_request is active, and new requests
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@ -1146,12 +1131,12 @@ blk_qc_t generic_make_request(struct bio *bio)
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* We pretend that we have just taken it off a longer list, so
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* we assign bio_list to a pointer to the bio_list_on_stack,
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* thus initialising the bio_list of new bios to be
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* added. ->make_request() may indeed add some more bios
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* added. ->submit_bio() may indeed add some more bios
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* through a recursive call to generic_make_request. If it
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* did, we find a non-NULL value in bio_list and re-enter the loop
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* from the top. In this case we really did just take the bio
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* of the top of the list (no pretending) and so remove it from
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* bio_list, and call into ->make_request() again.
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* bio_list, and call into ->submit_bio() again.
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*/
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BUG_ON(bio->bi_next);
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bio_list_init(&bio_list_on_stack[0]);
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@ -1201,9 +1186,9 @@ EXPORT_SYMBOL(generic_make_request);
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*/
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blk_qc_t direct_make_request(struct bio *bio)
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{
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struct request_queue *q = bio->bi_disk->queue;
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struct gendisk *disk = bio->bi_disk;
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if (WARN_ON_ONCE(q->make_request_fn)) {
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if (WARN_ON_ONCE(!disk->queue->mq_ops)) {
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bio_io_error(bio);
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return BLK_QC_T_NONE;
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}
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@ -1212,10 +1197,10 @@ blk_qc_t direct_make_request(struct bio *bio)
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if (unlikely(bio_queue_enter(bio)))
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return BLK_QC_T_NONE;
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if (!blk_crypto_bio_prep(&bio)) {
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blk_queue_exit(q);
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blk_queue_exit(disk->queue);
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return BLK_QC_T_NONE;
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}
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return blk_mq_make_request(q, bio);
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return blk_mq_submit_bio(bio);
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}
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EXPORT_SYMBOL_GPL(direct_make_request);
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@ -2136,8 +2136,7 @@ static void blk_add_rq_to_plug(struct blk_plug *plug, struct request *rq)
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}
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/**
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* blk_mq_make_request - Create and send a request to block device.
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* @q: Request queue pointer.
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* blk_mq_submit_bio - Create and send a request to block device.
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* @bio: Bio pointer.
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*
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* Builds up a request structure from @q and @bio and send to the device. The
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@ -2151,8 +2150,9 @@ static void blk_add_rq_to_plug(struct blk_plug *plug, struct request *rq)
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*
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* Returns: Request queue cookie.
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*/
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blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
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blk_qc_t blk_mq_submit_bio(struct bio *bio)
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{
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struct request_queue *q = bio->bi_disk->queue;
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const int is_sync = op_is_sync(bio->bi_opf);
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const int is_flush_fua = op_is_flush(bio->bi_opf);
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struct blk_mq_alloc_data data = {
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@ -2277,7 +2277,7 @@ blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
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blk_queue_exit(q);
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return BLK_QC_T_NONE;
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}
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EXPORT_SYMBOL_GPL(blk_mq_make_request); /* only for request based dm */
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EXPORT_SYMBOL_GPL(blk_mq_submit_bio); /* only for request based dm */
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void blk_mq_free_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
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unsigned int hctx_idx)
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@ -3017,7 +3017,7 @@ struct request_queue *blk_mq_init_queue_data(struct blk_mq_tag_set *set,
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{
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struct request_queue *uninit_q, *q;
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uninit_q = __blk_alloc_queue(set->numa_node);
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uninit_q = blk_alloc_queue(set->numa_node);
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if (!uninit_q)
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return ERR_PTR(-ENOMEM);
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uninit_q->queuedata = queuedata;
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@ -419,8 +419,6 @@ static inline void part_nr_sects_write(struct hd_struct *part, sector_t size)
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#endif
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}
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struct request_queue *__blk_alloc_queue(int node_id);
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int bio_add_hw_page(struct request_queue *q, struct bio *bio,
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struct page *page, unsigned int len, unsigned int offset,
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unsigned int max_sectors, bool *same_page);
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@ -282,7 +282,7 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
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return err;
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}
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static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio)
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static blk_qc_t brd_submit_bio(struct bio *bio)
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{
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struct brd_device *brd = bio->bi_disk->private_data;
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struct bio_vec bvec;
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@ -330,6 +330,7 @@ static int brd_rw_page(struct block_device *bdev, sector_t sector,
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static const struct block_device_operations brd_fops = {
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.owner = THIS_MODULE,
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.submit_bio = brd_submit_bio,
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.rw_page = brd_rw_page,
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};
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@ -381,7 +382,7 @@ static struct brd_device *brd_alloc(int i)
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spin_lock_init(&brd->brd_lock);
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INIT_RADIX_TREE(&brd->brd_pages, GFP_ATOMIC);
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brd->brd_queue = blk_alloc_queue(brd_make_request, NUMA_NO_NODE);
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brd->brd_queue = blk_alloc_queue(NUMA_NO_NODE);
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if (!brd->brd_queue)
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goto out_free_dev;
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@ -1451,7 +1451,7 @@ extern void conn_free_crypto(struct drbd_connection *connection);
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/* drbd_req */
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extern void do_submit(struct work_struct *ws);
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extern void __drbd_make_request(struct drbd_device *, struct bio *, unsigned long);
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extern blk_qc_t drbd_make_request(struct request_queue *q, struct bio *bio);
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extern blk_qc_t drbd_submit_bio(struct bio *bio);
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extern int drbd_read_remote(struct drbd_device *device, struct drbd_request *req);
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extern int is_valid_ar_handle(struct drbd_request *, sector_t);
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@ -132,9 +132,10 @@ wait_queue_head_t drbd_pp_wait;
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DEFINE_RATELIMIT_STATE(drbd_ratelimit_state, 5 * HZ, 5);
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static const struct block_device_operations drbd_ops = {
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.owner = THIS_MODULE,
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.open = drbd_open,
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.release = drbd_release,
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.owner = THIS_MODULE,
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.submit_bio = drbd_submit_bio,
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.open = drbd_open,
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.release = drbd_release,
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};
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struct bio *bio_alloc_drbd(gfp_t gfp_mask)
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@ -2801,7 +2802,7 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
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drbd_init_set_defaults(device);
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q = blk_alloc_queue(drbd_make_request, NUMA_NO_NODE);
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q = blk_alloc_queue(NUMA_NO_NODE);
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if (!q)
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goto out_no_q;
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device->rq_queue = q;
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@ -1593,7 +1593,7 @@ void do_submit(struct work_struct *ws)
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}
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}
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blk_qc_t drbd_make_request(struct request_queue *q, struct bio *bio)
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blk_qc_t drbd_submit_bio(struct bio *bio)
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{
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struct drbd_device *device = bio->bi_disk->private_data;
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unsigned long start_jif;
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@ -1388,7 +1388,7 @@ static struct nullb_queue *nullb_to_queue(struct nullb *nullb)
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return &nullb->queues[index];
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}
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static blk_qc_t null_queue_bio(struct request_queue *q, struct bio *bio)
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static blk_qc_t null_submit_bio(struct bio *bio)
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{
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sector_t sector = bio->bi_iter.bi_sector;
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sector_t nr_sectors = bio_sectors(bio);
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@ -1575,7 +1575,13 @@ static void null_config_discard(struct nullb *nullb)
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blk_queue_flag_set(QUEUE_FLAG_DISCARD, nullb->q);
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}
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static const struct block_device_operations null_ops = {
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static const struct block_device_operations null_bio_ops = {
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.owner = THIS_MODULE,
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.submit_bio = null_submit_bio,
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.report_zones = null_report_zones,
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};
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static const struct block_device_operations null_rq_ops = {
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.owner = THIS_MODULE,
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.report_zones = null_report_zones,
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};
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@ -1647,7 +1653,10 @@ static int null_gendisk_register(struct nullb *nullb)
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disk->flags |= GENHD_FL_EXT_DEVT | GENHD_FL_SUPPRESS_PARTITION_INFO;
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disk->major = null_major;
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disk->first_minor = nullb->index;
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disk->fops = &null_ops;
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if (queue_is_mq(nullb->q))
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disk->fops = &null_rq_ops;
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else
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disk->fops = &null_bio_ops;
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disk->private_data = nullb;
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disk->queue = nullb->q;
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strncpy(disk->disk_name, nullb->disk_name, DISK_NAME_LEN);
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@ -1792,7 +1801,7 @@ static int null_add_dev(struct nullb_device *dev)
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goto out_cleanup_tags;
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}
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} else if (dev->queue_mode == NULL_Q_BIO) {
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nullb->q = blk_alloc_queue(null_queue_bio, dev->home_node);
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nullb->q = blk_alloc_queue(dev->home_node);
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if (!nullb->q) {
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rv = -ENOMEM;
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goto out_cleanup_queues;
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@ -36,7 +36,7 @@
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* block device, assembling the pieces to full packets and queuing them to the
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* packet I/O scheduler.
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*
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* At the top layer there is a custom make_request_fn function that forwards
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* At the top layer there is a custom ->submit_bio function that forwards
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* read requests directly to the iosched queue and puts write requests in the
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* unaligned write queue. A kernel thread performs the necessary read
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* gathering to convert the unaligned writes to aligned writes and then feeds
|
||||
@ -2428,7 +2428,7 @@ static void pkt_make_request_write(struct request_queue *q, struct bio *bio)
|
||||
}
|
||||
}
|
||||
|
||||
static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t pkt_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct pktcdvd_device *pd;
|
||||
char b[BDEVNAME_SIZE];
|
||||
@ -2436,7 +2436,7 @@ static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
|
||||
|
||||
blk_queue_split(&bio);
|
||||
|
||||
pd = q->queuedata;
|
||||
pd = bio->bi_disk->queue->queuedata;
|
||||
if (!pd) {
|
||||
pr_err("%s incorrect request queue\n", bio_devname(bio, b));
|
||||
goto end_io;
|
||||
@ -2480,7 +2480,7 @@ static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
|
||||
split = bio;
|
||||
}
|
||||
|
||||
pkt_make_request_write(q, split);
|
||||
pkt_make_request_write(bio->bi_disk->queue, split);
|
||||
} while (split != bio);
|
||||
|
||||
return BLK_QC_T_NONE;
|
||||
@ -2685,6 +2685,7 @@ static char *pkt_devnode(struct gendisk *disk, umode_t *mode)
|
||||
|
||||
static const struct block_device_operations pktcdvd_ops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = pkt_submit_bio,
|
||||
.open = pkt_open,
|
||||
.release = pkt_close,
|
||||
.ioctl = pkt_ioctl,
|
||||
@ -2749,7 +2750,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
|
||||
disk->flags = GENHD_FL_REMOVABLE;
|
||||
strcpy(disk->disk_name, pd->name);
|
||||
disk->private_data = pd;
|
||||
disk->queue = blk_alloc_queue(pkt_make_request, NUMA_NO_NODE);
|
||||
disk->queue = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!disk->queue)
|
||||
goto out_mem2;
|
||||
|
||||
|
||||
@ -90,12 +90,6 @@ struct ps3vram_priv {
|
||||
|
||||
static int ps3vram_major;
|
||||
|
||||
|
||||
static const struct block_device_operations ps3vram_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
|
||||
#define DMA_NOTIFIER_HANDLE_BASE 0x66604200 /* first DMA notifier handle */
|
||||
#define DMA_NOTIFIER_OFFSET_BASE 0x1000 /* first DMA notifier offset */
|
||||
#define DMA_NOTIFIER_SIZE 0x40
|
||||
@ -585,7 +579,7 @@ static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev,
|
||||
return next;
|
||||
}
|
||||
|
||||
static blk_qc_t ps3vram_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t ps3vram_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct ps3_system_bus_device *dev = bio->bi_disk->private_data;
|
||||
struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
|
||||
@ -610,6 +604,11 @@ static blk_qc_t ps3vram_make_request(struct request_queue *q, struct bio *bio)
|
||||
return BLK_QC_T_NONE;
|
||||
}
|
||||
|
||||
static const struct block_device_operations ps3vram_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = ps3vram_submit_bio,
|
||||
};
|
||||
|
||||
static int ps3vram_probe(struct ps3_system_bus_device *dev)
|
||||
{
|
||||
struct ps3vram_priv *priv;
|
||||
@ -737,7 +736,7 @@ static int ps3vram_probe(struct ps3_system_bus_device *dev)
|
||||
|
||||
ps3vram_proc_init(dev);
|
||||
|
||||
queue = blk_alloc_queue(ps3vram_make_request, NUMA_NO_NODE);
|
||||
queue = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!queue) {
|
||||
dev_err(&dev->core, "blk_alloc_queue failed\n");
|
||||
error = -ENOMEM;
|
||||
|
||||
@ -50,6 +50,8 @@ struct rsxx_bio_meta {
|
||||
|
||||
static struct kmem_cache *bio_meta_pool;
|
||||
|
||||
static blk_qc_t rsxx_submit_bio(struct bio *bio);
|
||||
|
||||
/*----------------- Block Device Operations -----------------*/
|
||||
static int rsxx_blkdev_ioctl(struct block_device *bdev,
|
||||
fmode_t mode,
|
||||
@ -92,6 +94,7 @@ static int rsxx_getgeo(struct block_device *bdev, struct hd_geometry *geo)
|
||||
|
||||
static const struct block_device_operations rsxx_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = rsxx_submit_bio,
|
||||
.getgeo = rsxx_getgeo,
|
||||
.ioctl = rsxx_blkdev_ioctl,
|
||||
};
|
||||
@ -117,7 +120,7 @@ static void bio_dma_done_cb(struct rsxx_cardinfo *card,
|
||||
}
|
||||
}
|
||||
|
||||
static blk_qc_t rsxx_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t rsxx_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct rsxx_cardinfo *card = bio->bi_disk->private_data;
|
||||
struct rsxx_bio_meta *bio_meta;
|
||||
@ -233,7 +236,7 @@ int rsxx_setup_dev(struct rsxx_cardinfo *card)
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
card->queue = blk_alloc_queue(rsxx_make_request, NUMA_NO_NODE);
|
||||
card->queue = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!card->queue) {
|
||||
dev_err(CARD_TO_DEV(card), "Failed queue alloc\n");
|
||||
unregister_blkdev(card->major, DRIVER_NAME);
|
||||
|
||||
@ -519,7 +519,7 @@ static int mm_check_plugged(struct cardinfo *card)
|
||||
return !!blk_check_plugged(mm_unplug, card, sizeof(struct blk_plug_cb));
|
||||
}
|
||||
|
||||
static blk_qc_t mm_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t mm_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct cardinfo *card = bio->bi_disk->private_data;
|
||||
|
||||
@ -779,6 +779,7 @@ static int mm_getgeo(struct block_device *bdev, struct hd_geometry *geo)
|
||||
|
||||
static const struct block_device_operations mm_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = mm_submit_bio,
|
||||
.getgeo = mm_getgeo,
|
||||
.revalidate_disk = mm_revalidate,
|
||||
};
|
||||
@ -886,7 +887,7 @@ static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
card->biotail = &card->bio;
|
||||
spin_lock_init(&card->lock);
|
||||
|
||||
card->queue = blk_alloc_queue(mm_make_request, NUMA_NO_NODE);
|
||||
card->queue = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!card->queue)
|
||||
goto failed_alloc;
|
||||
|
||||
|
||||
@ -793,9 +793,9 @@ static void zram_sync_read(struct work_struct *work)
|
||||
}
|
||||
|
||||
/*
|
||||
* Block layer want one ->make_request_fn to be active at a time
|
||||
* so if we use chained IO with parent IO in same context,
|
||||
* it's a deadlock. To avoid, it, it uses worker thread context.
|
||||
* Block layer want one ->submit_bio to be active at a time, so if we use
|
||||
* chained IO with parent IO in same context, it's a deadlock. To avoid that,
|
||||
* use a worker thread context.
|
||||
*/
|
||||
static int read_from_bdev_sync(struct zram *zram, struct bio_vec *bvec,
|
||||
unsigned long entry, struct bio *bio)
|
||||
@ -1584,7 +1584,7 @@ static void __zram_make_request(struct zram *zram, struct bio *bio)
|
||||
/*
|
||||
* Handler function for all zram I/O requests.
|
||||
*/
|
||||
static blk_qc_t zram_make_request(struct request_queue *queue, struct bio *bio)
|
||||
static blk_qc_t zram_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct zram *zram = bio->bi_disk->private_data;
|
||||
|
||||
@ -1813,6 +1813,7 @@ static int zram_open(struct block_device *bdev, fmode_t mode)
|
||||
|
||||
static const struct block_device_operations zram_devops = {
|
||||
.open = zram_open,
|
||||
.submit_bio = zram_submit_bio,
|
||||
.swap_slot_free_notify = zram_slot_free_notify,
|
||||
.rw_page = zram_rw_page,
|
||||
.owner = THIS_MODULE
|
||||
@ -1891,7 +1892,7 @@ static int zram_add(void)
|
||||
#ifdef CONFIG_ZRAM_WRITEBACK
|
||||
spin_lock_init(&zram->wb_limit_lock);
|
||||
#endif
|
||||
queue = blk_alloc_queue(zram_make_request, NUMA_NO_NODE);
|
||||
queue = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!queue) {
|
||||
pr_err("Error allocating disk queue for device %d\n",
|
||||
device_id);
|
||||
|
||||
@ -236,10 +236,6 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
|
||||
return tgt_dev;
|
||||
}
|
||||
|
||||
static const struct block_device_operations nvm_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static struct nvm_tgt_type *__nvm_find_target_type(const char *name)
|
||||
{
|
||||
struct nvm_tgt_type *tt;
|
||||
@ -380,7 +376,7 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
|
||||
goto err_dev;
|
||||
}
|
||||
|
||||
tqueue = blk_alloc_queue(tt->make_rq, dev->q->node);
|
||||
tqueue = blk_alloc_queue(dev->q->node);
|
||||
if (!tqueue) {
|
||||
ret = -ENOMEM;
|
||||
goto err_disk;
|
||||
@ -390,7 +386,7 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
|
||||
tdisk->flags = GENHD_FL_EXT_DEVT;
|
||||
tdisk->major = 0;
|
||||
tdisk->first_minor = 0;
|
||||
tdisk->fops = &nvm_fops;
|
||||
tdisk->fops = tt->bops;
|
||||
tdisk->queue = tqueue;
|
||||
|
||||
targetdata = tt->init(tgt_dev, tdisk, create->flags);
|
||||
|
||||
@ -47,9 +47,9 @@ static struct pblk_global_caches pblk_caches = {
|
||||
|
||||
struct bio_set pblk_bio_set;
|
||||
|
||||
static blk_qc_t pblk_make_rq(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t pblk_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct pblk *pblk = q->queuedata;
|
||||
struct pblk *pblk = bio->bi_disk->queue->queuedata;
|
||||
|
||||
if (bio_op(bio) == REQ_OP_DISCARD) {
|
||||
pblk_discard(pblk, bio);
|
||||
@ -79,6 +79,12 @@ static blk_qc_t pblk_make_rq(struct request_queue *q, struct bio *bio)
|
||||
return BLK_QC_T_NONE;
|
||||
}
|
||||
|
||||
static const struct block_device_operations pblk_bops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = pblk_submit_bio,
|
||||
};
|
||||
|
||||
|
||||
static size_t pblk_trans_map_size(struct pblk *pblk)
|
||||
{
|
||||
int entry_size = 8;
|
||||
@ -1280,7 +1286,7 @@ static struct nvm_tgt_type tt_pblk = {
|
||||
.name = "pblk",
|
||||
.version = {1, 0, 0},
|
||||
|
||||
.make_rq = pblk_make_rq,
|
||||
.bops = &pblk_bops,
|
||||
.capacity = pblk_capacity,
|
||||
|
||||
.init = pblk_init,
|
||||
|
||||
@ -1158,7 +1158,7 @@ static void quit_max_writeback_rate(struct cache_set *c,
|
||||
|
||||
/* Cached devices - read & write stuff */
|
||||
|
||||
blk_qc_t cached_dev_make_request(struct request_queue *q, struct bio *bio)
|
||||
blk_qc_t cached_dev_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct search *s;
|
||||
struct bcache_device *d = bio->bi_disk->private_data;
|
||||
@ -1291,7 +1291,7 @@ static void flash_dev_nodata(struct closure *cl)
|
||||
continue_at(cl, search_free, NULL);
|
||||
}
|
||||
|
||||
blk_qc_t flash_dev_make_request(struct request_queue *q, struct bio *bio)
|
||||
blk_qc_t flash_dev_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct search *s;
|
||||
struct closure *cl;
|
||||
|
||||
@ -37,10 +37,10 @@ unsigned int bch_get_congested(const struct cache_set *c);
|
||||
void bch_data_insert(struct closure *cl);
|
||||
|
||||
void bch_cached_dev_request_init(struct cached_dev *dc);
|
||||
blk_qc_t cached_dev_make_request(struct request_queue *q, struct bio *bio);
|
||||
blk_qc_t cached_dev_submit_bio(struct bio *bio);
|
||||
|
||||
void bch_flash_dev_request_init(struct bcache_device *d);
|
||||
blk_qc_t flash_dev_make_request(struct request_queue *q, struct bio *bio);
|
||||
blk_qc_t flash_dev_submit_bio(struct bio *bio);
|
||||
|
||||
extern struct kmem_cache *bch_search_cache;
|
||||
|
||||
|
||||
@ -680,7 +680,16 @@ static int ioctl_dev(struct block_device *b, fmode_t mode,
|
||||
return d->ioctl(d, mode, cmd, arg);
|
||||
}
|
||||
|
||||
static const struct block_device_operations bcache_ops = {
|
||||
static const struct block_device_operations bcache_cached_ops = {
|
||||
.submit_bio = cached_dev_submit_bio,
|
||||
.open = open_dev,
|
||||
.release = release_dev,
|
||||
.ioctl = ioctl_dev,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static const struct block_device_operations bcache_flash_ops = {
|
||||
.submit_bio = flash_dev_submit_bio,
|
||||
.open = open_dev,
|
||||
.release = release_dev,
|
||||
.ioctl = ioctl_dev,
|
||||
@ -820,8 +829,8 @@ static void bcache_device_free(struct bcache_device *d)
|
||||
}
|
||||
|
||||
static int bcache_device_init(struct bcache_device *d, unsigned int block_size,
|
||||
sector_t sectors, make_request_fn make_request_fn,
|
||||
struct block_device *cached_bdev)
|
||||
sector_t sectors, struct block_device *cached_bdev,
|
||||
const struct block_device_operations *ops)
|
||||
{
|
||||
struct request_queue *q;
|
||||
const size_t max_stripes = min_t(size_t, INT_MAX,
|
||||
@ -868,10 +877,10 @@ static int bcache_device_init(struct bcache_device *d, unsigned int block_size,
|
||||
|
||||
d->disk->major = bcache_major;
|
||||
d->disk->first_minor = idx_to_first_minor(idx);
|
||||
d->disk->fops = &bcache_ops;
|
||||
d->disk->fops = ops;
|
||||
d->disk->private_data = d;
|
||||
|
||||
q = blk_alloc_queue(make_request_fn, NUMA_NO_NODE);
|
||||
q = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!q)
|
||||
return -ENOMEM;
|
||||
|
||||
@ -1355,7 +1364,7 @@ static int cached_dev_init(struct cached_dev *dc, unsigned int block_size)
|
||||
|
||||
ret = bcache_device_init(&dc->disk, block_size,
|
||||
dc->bdev->bd_part->nr_sects - dc->sb.data_offset,
|
||||
cached_dev_make_request, dc->bdev);
|
||||
dc->bdev, &bcache_cached_ops);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@ -1468,7 +1477,7 @@ static int flash_dev_run(struct cache_set *c, struct uuid_entry *u)
|
||||
kobject_init(&d->kobj, &bch_flash_dev_ktype);
|
||||
|
||||
if (bcache_device_init(d, block_bytes(c), u->sectors,
|
||||
flash_dev_make_request, NULL))
|
||||
NULL, &bcache_flash_ops))
|
||||
goto err;
|
||||
|
||||
bcache_device_attach(d, c, u - c->uuids);
|
||||
|
||||
@ -1770,7 +1770,7 @@ static blk_qc_t dm_process_bio(struct mapped_device *md,
|
||||
}
|
||||
|
||||
/*
|
||||
* If in ->make_request_fn we need to use blk_queue_split(), otherwise
|
||||
* If in ->queue_bio we need to use blk_queue_split(), otherwise
|
||||
* queue_limits for abnormal requests (e.g. discard, writesame, etc)
|
||||
* won't be imposed.
|
||||
*/
|
||||
@ -1787,7 +1787,7 @@ static blk_qc_t dm_process_bio(struct mapped_device *md,
|
||||
return __split_and_process_bio(md, map, bio);
|
||||
}
|
||||
|
||||
static blk_qc_t dm_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t dm_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct mapped_device *md = bio->bi_disk->private_data;
|
||||
blk_qc_t ret = BLK_QC_T_NONE;
|
||||
@ -1798,12 +1798,12 @@ static blk_qc_t dm_make_request(struct request_queue *q, struct bio *bio)
|
||||
/*
|
||||
* We are called with a live reference on q_usage_counter, but
|
||||
* that one will be released as soon as we return. Grab an
|
||||
* extra one as blk_mq_make_request expects to be able to
|
||||
* consume a reference (which lives until the request is freed
|
||||
* in case a request is allocated).
|
||||
* extra one as blk_mq_submit_bio expects to be able to consume
|
||||
* a reference (which lives until the request is freed in case a
|
||||
* request is allocated).
|
||||
*/
|
||||
percpu_ref_get(&q->q_usage_counter);
|
||||
return blk_mq_make_request(q, bio);
|
||||
percpu_ref_get(&bio->bi_disk->queue->q_usage_counter);
|
||||
return blk_mq_submit_bio(bio);
|
||||
}
|
||||
|
||||
map = dm_get_live_table(md, &srcu_idx);
|
||||
@ -1988,11 +1988,11 @@ static struct mapped_device *alloc_dev(int minor)
|
||||
spin_lock_init(&md->uevent_lock);
|
||||
|
||||
/*
|
||||
* default to bio-based required ->make_request_fn until DM
|
||||
* table is loaded and md->type established. If request-based
|
||||
* table is loaded: blk-mq will override accordingly.
|
||||
* default to bio-based until DM table is loaded and md->type
|
||||
* established. If request-based table is loaded: blk-mq will
|
||||
* override accordingly.
|
||||
*/
|
||||
md->queue = blk_alloc_queue(dm_make_request, numa_node_id);
|
||||
md->queue = blk_alloc_queue(numa_node_id);
|
||||
if (!md->queue)
|
||||
goto bad;
|
||||
|
||||
@ -3232,6 +3232,7 @@ static const struct pr_ops dm_pr_ops = {
|
||||
};
|
||||
|
||||
static const struct block_device_operations dm_blk_dops = {
|
||||
.submit_bio = dm_submit_bio,
|
||||
.open = dm_blk_open,
|
||||
.release = dm_blk_close,
|
||||
.ioctl = dm_blk_ioctl,
|
||||
|
||||
@ -463,7 +463,7 @@ void md_handle_request(struct mddev *mddev, struct bio *bio)
|
||||
}
|
||||
EXPORT_SYMBOL(md_handle_request);
|
||||
|
||||
static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t md_submit_bio(struct bio *bio)
|
||||
{
|
||||
const int rw = bio_data_dir(bio);
|
||||
const int sgrp = op_stat_group(bio_op(bio));
|
||||
@ -5641,7 +5641,7 @@ static int md_alloc(dev_t dev, char *name)
|
||||
mddev->hold_active = UNTIL_STOP;
|
||||
|
||||
error = -ENOMEM;
|
||||
mddev->queue = blk_alloc_queue(md_make_request, NUMA_NO_NODE);
|
||||
mddev->queue = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!mddev->queue)
|
||||
goto abort;
|
||||
|
||||
@ -7823,6 +7823,7 @@ static int md_revalidate(struct gendisk *disk)
|
||||
static const struct block_device_operations md_fops =
|
||||
{
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = md_submit_bio,
|
||||
.open = md_open,
|
||||
.release = md_release,
|
||||
.ioctl = md_ioctl,
|
||||
|
||||
@ -162,7 +162,7 @@ static int nsblk_do_bvec(struct nd_namespace_blk *nsblk,
|
||||
return err;
|
||||
}
|
||||
|
||||
static blk_qc_t nd_blk_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t nd_blk_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct bio_integrity_payload *bip;
|
||||
struct nd_namespace_blk *nsblk = bio->bi_disk->private_data;
|
||||
@ -225,6 +225,7 @@ static int nsblk_rw_bytes(struct nd_namespace_common *ndns,
|
||||
|
||||
static const struct block_device_operations nd_blk_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = nd_blk_submit_bio,
|
||||
.revalidate_disk = nvdimm_revalidate_disk,
|
||||
};
|
||||
|
||||
@ -250,7 +251,7 @@ static int nsblk_attach_disk(struct nd_namespace_blk *nsblk)
|
||||
internal_nlba = div_u64(nsblk->size, nsblk_internal_lbasize(nsblk));
|
||||
available_disk_size = internal_nlba * nsblk_sector_size(nsblk);
|
||||
|
||||
q = blk_alloc_queue(nd_blk_make_request, NUMA_NO_NODE);
|
||||
q = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!q)
|
||||
return -ENOMEM;
|
||||
if (devm_add_action_or_reset(dev, nd_blk_release_queue, q))
|
||||
|
||||
@ -1439,7 +1439,7 @@ static int btt_do_bvec(struct btt *btt, struct bio_integrity_payload *bip,
|
||||
return ret;
|
||||
}
|
||||
|
||||
static blk_qc_t btt_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t btt_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct bio_integrity_payload *bip = bio_integrity(bio);
|
||||
struct btt *btt = bio->bi_disk->private_data;
|
||||
@ -1512,6 +1512,7 @@ static int btt_getgeo(struct block_device *bd, struct hd_geometry *geo)
|
||||
|
||||
static const struct block_device_operations btt_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = btt_submit_bio,
|
||||
.rw_page = btt_rw_page,
|
||||
.getgeo = btt_getgeo,
|
||||
.revalidate_disk = nvdimm_revalidate_disk,
|
||||
@ -1523,7 +1524,7 @@ static int btt_blk_init(struct btt *btt)
|
||||
struct nd_namespace_common *ndns = nd_btt->ndns;
|
||||
|
||||
/* create a new disk and request queue for btt */
|
||||
btt->btt_queue = blk_alloc_queue(btt_make_request, NUMA_NO_NODE);
|
||||
btt->btt_queue = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!btt->btt_queue)
|
||||
return -ENOMEM;
|
||||
|
||||
|
||||
@ -189,7 +189,7 @@ static blk_status_t pmem_do_write(struct pmem_device *pmem,
|
||||
return rc;
|
||||
}
|
||||
|
||||
static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t pmem_submit_bio(struct bio *bio)
|
||||
{
|
||||
int ret = 0;
|
||||
blk_status_t rc = 0;
|
||||
@ -281,6 +281,7 @@ __weak long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff,
|
||||
|
||||
static const struct block_device_operations pmem_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = pmem_submit_bio,
|
||||
.rw_page = pmem_rw_page,
|
||||
.revalidate_disk = nvdimm_revalidate_disk,
|
||||
};
|
||||
@ -423,7 +424,7 @@ static int pmem_attach_disk(struct device *dev,
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
q = blk_alloc_queue(pmem_make_request, dev_to_node(dev));
|
||||
q = blk_alloc_queue(dev_to_node(dev));
|
||||
if (!q)
|
||||
return -ENOMEM;
|
||||
|
||||
|
||||
@ -2178,6 +2178,7 @@ static void nvme_ns_head_release(struct gendisk *disk, fmode_t mode)
|
||||
|
||||
const struct block_device_operations nvme_ns_head_ops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = nvme_ns_head_submit_bio,
|
||||
.open = nvme_ns_head_open,
|
||||
.release = nvme_ns_head_release,
|
||||
.ioctl = nvme_ioctl,
|
||||
|
||||
@ -291,8 +291,7 @@ static bool nvme_available_path(struct nvme_ns_head *head)
|
||||
return false;
|
||||
}
|
||||
|
||||
static blk_qc_t nvme_ns_head_make_request(struct request_queue *q,
|
||||
struct bio *bio)
|
||||
blk_qc_t nvme_ns_head_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct nvme_ns_head *head = bio->bi_disk->private_data;
|
||||
struct device *dev = disk_to_dev(head->disk);
|
||||
@ -374,7 +373,7 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head)
|
||||
if (!(ctrl->subsys->cmic & NVME_CTRL_CMIC_MULTI_CTRL) || !multipath)
|
||||
return 0;
|
||||
|
||||
q = blk_alloc_queue(nvme_ns_head_make_request, ctrl->numa_node);
|
||||
q = blk_alloc_queue(ctrl->numa_node);
|
||||
if (!q)
|
||||
goto out;
|
||||
blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
|
||||
|
||||
@ -586,6 +586,7 @@ void nvme_mpath_stop(struct nvme_ctrl *ctrl);
|
||||
bool nvme_mpath_clear_current_path(struct nvme_ns *ns);
|
||||
void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl);
|
||||
struct nvme_ns *nvme_find_path(struct nvme_ns_head *head);
|
||||
blk_qc_t nvme_ns_head_submit_bio(struct bio *bio);
|
||||
|
||||
static inline void nvme_mpath_check_last_path(struct nvme_ns *ns)
|
||||
{
|
||||
|
||||
@ -31,8 +31,7 @@
|
||||
|
||||
static int dcssblk_open(struct block_device *bdev, fmode_t mode);
|
||||
static void dcssblk_release(struct gendisk *disk, fmode_t mode);
|
||||
static blk_qc_t dcssblk_make_request(struct request_queue *q,
|
||||
struct bio *bio);
|
||||
static blk_qc_t dcssblk_submit_bio(struct bio *bio);
|
||||
static long dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff,
|
||||
long nr_pages, void **kaddr, pfn_t *pfn);
|
||||
|
||||
@ -41,6 +40,7 @@ static char dcssblk_segments[DCSSBLK_PARM_LEN] = "\0";
|
||||
static int dcssblk_major;
|
||||
static const struct block_device_operations dcssblk_devops = {
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = dcssblk_submit_bio,
|
||||
.open = dcssblk_open,
|
||||
.release = dcssblk_release,
|
||||
};
|
||||
@ -651,8 +651,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
|
||||
}
|
||||
dev_info->gd->major = dcssblk_major;
|
||||
dev_info->gd->fops = &dcssblk_devops;
|
||||
dev_info->dcssblk_queue =
|
||||
blk_alloc_queue(dcssblk_make_request, NUMA_NO_NODE);
|
||||
dev_info->dcssblk_queue = blk_alloc_queue(NUMA_NO_NODE);
|
||||
dev_info->gd->queue = dev_info->dcssblk_queue;
|
||||
dev_info->gd->private_data = dev_info;
|
||||
blk_queue_logical_block_size(dev_info->dcssblk_queue, 4096);
|
||||
@ -868,7 +867,7 @@ dcssblk_release(struct gendisk *disk, fmode_t mode)
|
||||
}
|
||||
|
||||
static blk_qc_t
|
||||
dcssblk_make_request(struct request_queue *q, struct bio *bio)
|
||||
dcssblk_submit_bio(struct bio *bio)
|
||||
{
|
||||
struct dcssblk_dev_info *dev_info;
|
||||
struct bio_vec bvec;
|
||||
|
||||
@ -182,7 +182,7 @@ static unsigned long xpram_highest_page_index(void)
|
||||
/*
|
||||
* Block device make request function.
|
||||
*/
|
||||
static blk_qc_t xpram_make_request(struct request_queue *q, struct bio *bio)
|
||||
static blk_qc_t xpram_submit_bio(struct bio *bio)
|
||||
{
|
||||
xpram_device_t *xdev = bio->bi_disk->private_data;
|
||||
struct bio_vec bvec;
|
||||
@ -250,6 +250,7 @@ static int xpram_getgeo(struct block_device *bdev, struct hd_geometry *geo)
|
||||
static const struct block_device_operations xpram_devops =
|
||||
{
|
||||
.owner = THIS_MODULE,
|
||||
.submit_bio = xpram_submit_bio,
|
||||
.getgeo = xpram_getgeo,
|
||||
};
|
||||
|
||||
@ -343,8 +344,7 @@ static int __init xpram_setup_blkdev(void)
|
||||
xpram_disks[i] = alloc_disk(1);
|
||||
if (!xpram_disks[i])
|
||||
goto out;
|
||||
xpram_queues[i] = blk_alloc_queue(xpram_make_request,
|
||||
NUMA_NO_NODE);
|
||||
xpram_queues[i] = blk_alloc_queue(NUMA_NO_NODE);
|
||||
if (!xpram_queues[i]) {
|
||||
put_disk(xpram_disks[i]);
|
||||
goto out;
|
||||
|
||||
@ -596,6 +596,6 @@ static inline void blk_mq_cleanup_rq(struct request *rq)
|
||||
rq->q->mq_ops->cleanup_rq(rq);
|
||||
}
|
||||
|
||||
blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio);
|
||||
blk_qc_t blk_mq_submit_bio(struct bio *bio);
|
||||
|
||||
#endif
|
||||
|
||||
@ -286,8 +286,6 @@ static inline unsigned short req_get_ioprio(struct request *req)
|
||||
|
||||
struct blk_queue_ctx;
|
||||
|
||||
typedef blk_qc_t (make_request_fn) (struct request_queue *q, struct bio *bio);
|
||||
|
||||
struct bio_vec;
|
||||
|
||||
enum blk_eh_timer_return {
|
||||
@ -398,8 +396,6 @@ struct request_queue {
|
||||
struct blk_queue_stats *stats;
|
||||
struct rq_qos *rq_qos;
|
||||
|
||||
make_request_fn *make_request_fn;
|
||||
|
||||
const struct blk_mq_ops *mq_ops;
|
||||
|
||||
/* sw queues */
|
||||
@ -1162,7 +1158,7 @@ static inline int blk_rq_map_sg(struct request_queue *q, struct request *rq,
|
||||
extern void blk_dump_rq_flags(struct request *, char *);
|
||||
|
||||
bool __must_check blk_get_queue(struct request_queue *);
|
||||
struct request_queue *blk_alloc_queue(make_request_fn make_request, int node_id);
|
||||
struct request_queue *blk_alloc_queue(int node_id);
|
||||
extern void blk_put_queue(struct request_queue *);
|
||||
extern void blk_set_queue_dying(struct request_queue *);
|
||||
|
||||
@ -1778,6 +1774,7 @@ static inline void blk_ksm_unregister(struct request_queue *q) { }
|
||||
|
||||
|
||||
struct block_device_operations {
|
||||
blk_qc_t (*submit_bio) (struct bio *bio);
|
||||
int (*open) (struct block_device *, fmode_t);
|
||||
void (*release) (struct gendisk *, fmode_t);
|
||||
int (*rw_page)(struct block_device *, sector_t, struct page *, unsigned int);
|
||||
|
||||
@ -631,7 +631,6 @@ static inline int nvm_next_ppa_in_chk(struct nvm_tgt_dev *dev,
|
||||
return last;
|
||||
}
|
||||
|
||||
typedef blk_qc_t (nvm_tgt_make_rq_fn)(struct request_queue *, struct bio *);
|
||||
typedef sector_t (nvm_tgt_capacity_fn)(void *);
|
||||
typedef void *(nvm_tgt_init_fn)(struct nvm_tgt_dev *, struct gendisk *,
|
||||
int flags);
|
||||
@ -650,7 +649,7 @@ struct nvm_tgt_type {
|
||||
int flags;
|
||||
|
||||
/* target entry points */
|
||||
nvm_tgt_make_rq_fn *make_rq;
|
||||
const struct block_device_operations *bops;
|
||||
nvm_tgt_capacity_fn *capacity;
|
||||
|
||||
/* module-specific init/teardown */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user