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io_uring: don't use complete_post in kbuf

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Now we're handling IOPOLL completions more generically, get rid uses of
_post() and send requests through the normal path. It may have some
extra mertis performance wise, but we don't care much as there is a
better interface for selected buffers.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4deded706587f55b006dc33adf0c13cfc3b2319f.1669310258.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2022-11-24 19:46:40 +00:00 committed by Jens Axboe
parent 10d8bc3541
commit c3b490930d
1 changed files with 5 additions and 9 deletions
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14
io_uring/kbuf.c
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@ -306,14 +306,11 @@ int io_remove_buffers(struct io_kiocb *req, unsigned int issue_flags)
if (!bl->buf_nr_pages)
ret = __io_remove_buffers(ctx, bl, p->nbufs);
}
io_ring_submit_unlock(ctx, issue_flags);
if (ret < 0)
req_set_fail(req);
/* complete before unlock, IOPOLL may need the lock */
io_req_set_res(req, ret, 0);
io_req_complete_post(req, 0);
io_ring_submit_unlock(ctx, issue_flags);
return IOU_ISSUE_SKIP_COMPLETE;
return IOU_OK;
}
int io_provide_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
@ -458,13 +455,12 @@ int io_provide_buffers(struct io_kiocb *req, unsigned int issue_flags)
ret = io_add_buffers(ctx, p, bl);
err:
io_ring_submit_unlock(ctx, issue_flags);
if (ret < 0)
req_set_fail(req);
/* complete before unlock, IOPOLL may need the lock */
io_req_set_res(req, ret, 0);
io_req_complete_post(req, 0);
io_ring_submit_unlock(ctx, issue_flags);
return IOU_ISSUE_SKIP_COMPLETE;
return IOU_OK;
}
int io_register_pbuf_ring(struct io_ring_ctx *ctx, void __user *arg)