public inbox for [email protected]
 help / color / mirror / Atom feed
From: Jens Axboe <[email protected]>
To: [email protected]
Cc: [email protected], Jens Axboe <[email protected]>
Subject: [PATCH 4/8] io_uring: cleanup return values from the queueing functions
Date: Fri, 15 Nov 2019 18:53:10 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

__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 <[email protected]>
---
 fs/io_uring.c | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index c60e0fa96d9f..56a9321a4232 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2825,7 +2825,7 @@ 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;
@@ -2870,7 +2870,7 @@ static int __io_queue_sqe(struct io_kiocb *req)
 			if (nxt)
 				io_queue_linked_timeout(nxt, &ts, &mode);
 
-			return 0;
+			return;
 		}
 	}
 
@@ -2892,11 +2892,9 @@ static int __io_queue_sqe(struct io_kiocb *req)
 			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;
 
@@ -2906,20 +2904,20 @@ 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
@@ -2933,7 +2931,7 @@ 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 {
 		/*
@@ -2950,9 +2948,7 @@ 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)
-- 
2.24.0


  parent reply	other threads:[~2019-11-16  1:53 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-16  1:53 [PATCHSET] Pending io_uring items not yet queued up for 5.5 Jens Axboe
2019-11-16  1:53 ` [PATCH 1/8] io-wq: remove now redundant struct io_wq_nulls_list Jens Axboe
2019-11-16  1:53 ` [PATCH 2/8] io_uring: make POLL_ADD/POLL_REMOVE scale better Jens Axboe
2019-11-16  1:53 ` [PATCH 3/8] io_uring: io_async_cancel() should pass in 'nxt' request pointer Jens Axboe
2019-11-16  1:53 ` Jens Axboe [this message]
2019-11-16  1:53 ` [PATCH 5/8] io_uring: make io_double_put_req() use normal completion path Jens Axboe
2019-11-16  1:53 ` [PATCH 6/8] io_uring: make req->timeout be dynamically allocated Jens Axboe
2019-11-16  1:53 ` [PATCH 7/8] io_uring: fix sequencing issues with linked timeouts Jens Axboe
2019-11-19 20:51   ` Pavel Begunkov
2019-11-19 22:13     ` Jens Axboe
2019-11-20 12:42       ` Pavel Begunkov
2019-11-20 17:19         ` Jens Axboe
2019-11-20 18:15           ` Jens Axboe
2019-11-16  1:53 ` [PATCH 8/8] io_uring: remove dead REQ_F_SEQ_PREV flag Jens Axboe

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox