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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-07 09:35:50 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-07 09:35:50 -0700 |
commit | 7c989b1da3946e40bf71be00a0b401015235605a (patch) | |
tree | 33de4ff984af6a301d6e80a05d40a893909388c9 /include/linux/blk-mq.h | |
parent | 513389809e138ae903b6ef43c1d5d2ffaf4dca17 (diff) | |
parent | 0e0abad2a71bcd7ba0f30e7975f5b4199ade4e60 (diff) | |
download | linux-7c989b1da3946e40bf71be00a0b401015235605a.tar.gz |
Merge tag 'for-6.1/passthrough-2022-10-04' of git://git.kernel.dk/linux
Pull passthrough updates from Jens Axboe:
"With these changes, passthrough NVMe support over io_uring now
performs at the same level as block device O_DIRECT, and in many cases
6-8% better.
This contains:
- Add support for fixed buffers for passthrough (Anuj, Kanchan)
- Enable batched allocations and freeing on passthrough, similarly to
what we support on the normal storage path (me)
- Fix from Geert fixing an issue with !CONFIG_IO_URING"
* tag 'for-6.1/passthrough-2022-10-04' of git://git.kernel.dk/linux:
io_uring: Add missing inline to io_uring_cmd_import_fixed() dummy
nvme: wire up fixed buffer support for nvme passthrough
nvme: pass ubuffer as an integer
block: extend functionality to map bvec iterator
block: factor out blk_rq_map_bio_alloc helper
block: rename bio_map_put to blk_mq_map_bio_put
nvme: refactor nvme_alloc_request
nvme: refactor nvme_add_user_metadata
nvme: Use blk_rq_map_user_io helper
scsi: Use blk_rq_map_user_io helper
block: add blk_rq_map_user_io
io_uring: introduce fixed buffer support for io_uring_cmd
io_uring: add io_uring_cmd_import_fixed
nvme: enable batched completions of passthrough IO
nvme: split out metadata vs non metadata end_io uring_cmd completions
block: allow end_io based requests in the completion batch handling
block: change request end_io handler to pass back a return value
block: enable batched allocation for blk_mq_alloc_request()
block: kill deprecated BUG_ON() in the flush handling
Diffstat (limited to 'include/linux/blk-mq.h')
-rw-r--r-- | include/linux/blk-mq.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 00a15808c137..ba18e9bdb799 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -14,7 +14,12 @@ struct blk_flush_queue; #define BLKDEV_MIN_RQ 4 #define BLKDEV_DEFAULT_RQ 128 -typedef void (rq_end_io_fn)(struct request *, blk_status_t); +enum rq_end_io_ret { + RQ_END_IO_NONE, + RQ_END_IO_FREE, +}; + +typedef enum rq_end_io_ret (rq_end_io_fn)(struct request *, blk_status_t); /* * request flags */ @@ -848,8 +853,9 @@ static inline bool blk_mq_add_to_batch(struct request *req, struct io_comp_batch *iob, int ioerror, void (*complete)(struct io_comp_batch *)) { - if (!iob || (req->rq_flags & RQF_ELV) || req->end_io || ioerror) + if (!iob || (req->rq_flags & RQF_ELV) || ioerror) return false; + if (!iob->complete) iob->complete = complete; else if (iob->complete != complete) @@ -979,6 +985,8 @@ struct rq_map_data { int blk_rq_map_user(struct request_queue *, struct request *, struct rq_map_data *, void __user *, unsigned long, gfp_t); +int blk_rq_map_user_io(struct request *, struct rq_map_data *, + void __user *, unsigned long, gfp_t, bool, int, bool, int); int blk_rq_map_user_iov(struct request_queue *, struct request *, struct rq_map_data *, const struct iov_iter *, gfp_t); int blk_rq_unmap_user(struct bio *); |