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io_uring: convert accept4() -ERESTARTSYS into -EINTR

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If we cancel a pending accept operating with a signal, we get
-ERESTARTSYS returned. Turn that into -EINTR for userspace, we should
not be return -ERESTARTSYS.

Fixes: 17f2fe35d0 ("io_uring: add support for IORING_OP_ACCEPT")
Reported-by: Hrvoje Zeba <zeba.hrvoje@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2019-11-09 19:52:33 -07:00
parent 46568e9be7
commit 8e3cca1270
1 changed files with 2 additions and 0 deletions
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2
fs/io_uring.c
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@ -1887,6 +1887,8 @@ static int io_accept(struct io_kiocb *req, const struct io_uring_sqe *sqe,
req->work.flags |= IO_WQ_WORK_NEEDS_FILES;
return -EAGAIN;
}
if (ret == -ERESTARTSYS)
ret = -EINTR;
if (ret < 0 && (req->flags & REQ_F_LINK))
req->flags |= REQ_F_FAIL_LINK;
io_cqring_add_event(req, ret);