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| author | Kanchan Joshi <joshi.k@samsung.com> | 2022-08-23 21:44:41 +0530 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-09-21 10:30:42 -0600 |
| commit | 5756a3a7e713bcab705a5f0c810a2b1f7f4ecfaa (patch) | |
| tree | 1052175b9867cc3e94bb2ad5bfdee560dcc0ba72 /io_uring/rw.c | |
| parent | de27e18e86173b704beaa19f0ee376f3305c4794 (diff) | |
| download | lwn-5756a3a7e713bcab705a5f0c810a2b1f7f4ecfaa.tar.gz lwn-5756a3a7e713bcab705a5f0c810a2b1f7f4ecfaa.zip | |
io_uring: add iopoll infrastructure for io_uring_cmd
Put this up in the same way as iopoll is done for regular read/write IO.
Make place for storing a cookie into struct io_uring_cmd on submission.
Perform the completion using the ->uring_cmd_iopoll handler.
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Link: https://lore.kernel.org/r/20220823161443.49436-3-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/rw.c')
| -rw-r--r-- | io_uring/rw.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/io_uring/rw.c b/io_uring/rw.c index 76ebcfebc9a6..b6f9c756b7a1 100644 --- a/io_uring/rw.c +++ b/io_uring/rw.c @@ -1011,7 +1011,13 @@ int io_do_iopoll(struct io_ring_ctx *ctx, bool force_nonspin) if (READ_ONCE(req->iopoll_completed)) break; - ret = rw->kiocb.ki_filp->f_op->iopoll(&rw->kiocb, &iob, poll_flags); + if (req->opcode == IORING_OP_URING_CMD) { + struct io_uring_cmd *ioucmd = (struct io_uring_cmd *)rw; + + ret = req->file->f_op->uring_cmd_iopoll(ioucmd); + } else + ret = rw->kiocb.ki_filp->f_op->iopoll(&rw->kiocb, &iob, + poll_flags); if (unlikely(ret < 0)) return ret; else if (ret) |