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io_uring: fix lost cqe->flags

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Don't forget to fill cqe->flags properly in io_submit_flush_completions()

Fixes: a1d7c393c4 ("io_uring: enable READ/WRITE to use deferred completions")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
2020-07-03 22:15:08 +03:00
committed by Jens Axboe
parent 652532ad45
commit 8b3656af2a
1 changed files with 2 additions and 1 deletions
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3
fs/io_uring.c
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@@ -1416,7 +1416,7 @@ static void io_submit_flush_completions(struct io_comp_state *cs)
req = list_first_entry(&cs->list, struct io_kiocb, list); req = list_first_entry(&cs->list, struct io_kiocb, list);
list_del(&req->list); list_del(&req->list);
io_cqring_fill_event(req, req->result); __io_cqring_fill_event(req, req->result, req->cflags);
if (!(req->flags & REQ_F_LINK_HEAD)) { if (!(req->flags & REQ_F_LINK_HEAD)) {
req->flags |= REQ_F_COMP_LOCKED; req->flags |= REQ_F_COMP_LOCKED;
io_put_req(req); io_put_req(req);
@@ -1441,6 +1441,7 @@ static void __io_req_complete(struct io_kiocb *req, long res, unsigned cflags,
io_put_req(req); io_put_req(req);
} else { } else {
req->result = res; req->result = res;
req->cflags = cflags;
list_add_tail(&req->list, &cs->list); list_add_tail(&req->list, &cs->list);
if (++cs->nr >= 32) if (++cs->nr >= 32)
io_submit_flush_completions(cs); io_submit_flush_completions(cs);