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io_uring: cleanup return values from the queueing functions 

__io_queue_sqe(), io_queue_sqe(), io_queue_link_head() all return 0/err,
but the caller doesn't care since the errors are handled inline. Clean
these up and just make them void.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2019-11-14 21:42:10 -07:00
parent 95a5bbae05
commit 0e0702dac2
1 changed files with 12 additions and 16 deletions
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28
fs/io_uring.c
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@ -2840,7 +2840,7 @@ static struct io_kiocb *io_prep_linked_timeout(struct io_kiocb *req,
return nxt;
}
static int __io_queue_sqe(struct io_kiocb *req)
static void __io_queue_sqe(struct io_kiocb *req)
{
enum hrtimer_mode mode;
struct io_kiocb *nxt;
@ -2885,7 +2885,7 @@ static int __io_queue_sqe(struct io_kiocb *req)
if (nxt)
io_queue_linked_timeout(nxt, &ts, &mode);
return 0;
return;
}
}
@ -2907,11 +2907,9 @@ err:
req->flags |= REQ_F_FAIL_LINK;
io_put_req(req);
}
return ret;
}
static int io_queue_sqe(struct io_kiocb *req)
static void io_queue_sqe(struct io_kiocb *req)
{
int ret;
@ -2921,20 +2919,20 @@ static int io_queue_sqe(struct io_kiocb *req)
io_cqring_add_event(req, ret);
io_double_put_req(req);
}
return 0;
}
return __io_queue_sqe(req);
} else
__io_queue_sqe(req);
}
static int io_queue_link_head(struct io_kiocb *req, struct io_kiocb *shadow)
static void io_queue_link_head(struct io_kiocb *req, struct io_kiocb *shadow)
{
int ret;
int need_submit = false;
struct io_ring_ctx *ctx = req->ctx;
if (!shadow)
return io_queue_sqe(req);
if (!shadow) {
io_queue_sqe(req);
return;
}
/*
* Mark the first IO in link list as DRAIN, let all the following
@ -2948,7 +2946,7 @@ static int io_queue_link_head(struct io_kiocb *req, struct io_kiocb *shadow)
io_cqring_add_event(req, ret);
io_double_put_req(req);
__io_free_req(shadow);
return 0;
return;
}
} else {
/*
@ -2965,9 +2963,7 @@ static int io_queue_link_head(struct io_kiocb *req, struct io_kiocb *shadow)
spin_unlock_irq(&ctx->completion_lock);
if (need_submit)
return __io_queue_sqe(req);
return 0;
__io_queue_sqe(req);
}
#define SQE_VALID_FLAGS (IOSQE_FIXED_FILE|IOSQE_IO_DRAIN|IOSQE_IO_LINK)