IO-Uring Archive on lore.kernel.org
 help / color / Atom feed
From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>,
	io-uring@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 5/5] io_uring: purge req->in_async
Date: Tue, 11 Feb 2020 23:01:58 +0300
Message-ID: <4ec21bcc4b477808d918efa6ec691469207b1db1.1581450491.git.asml.silence@gmail.com> (raw)
In-Reply-To: <cover.1581450491.git.asml.silence@gmail.com>

req->in_async is not really needed, it only prevents propagation of
@nxt for fast not-blocked submissions. Remove it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 fs/io_uring.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index b33f2521040e..a50e7ac41668 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -550,7 +550,6 @@ struct io_kiocb {
 	 * llist_node is only used for poll deferred completions
 	 */
 	struct llist_node		llist_node;
-	bool				in_async;
 	bool				needs_fixed_file;
 	u8				opcode;
 
@@ -1974,14 +1973,13 @@ static inline void io_rw_done(struct kiocb *kiocb, ssize_t ret)
 	}
 }
 
-static void kiocb_done(struct kiocb *kiocb, ssize_t ret, struct io_kiocb **nxt,
-		       bool in_async)
+static void kiocb_done(struct kiocb *kiocb, ssize_t ret, struct io_kiocb **nxt)
 {
 	struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb);
 
 	if (req->flags & REQ_F_CUR_POS)
 		req->file->f_pos = kiocb->ki_pos;
-	if (in_async && ret >= 0 && kiocb->ki_complete == io_complete_rw)
+	if (ret >= 0 && kiocb->ki_complete == io_complete_rw)
 		*nxt = __io_complete_rw(kiocb, ret);
 	else
 		io_rw_done(kiocb, ret);
@@ -2274,7 +2272,7 @@ static int io_read(struct io_kiocb *req, struct io_kiocb **nxt,
 
 		/* Catch -EAGAIN return for forced non-blocking submission */
 		if (!force_nonblock || ret2 != -EAGAIN) {
-			kiocb_done(kiocb, ret2, nxt, req->in_async);
+			kiocb_done(kiocb, ret2, nxt);
 		} else {
 copy_iov:
 			ret = io_setup_async_rw(req, io_size, iovec,
@@ -2387,7 +2385,7 @@ static int io_write(struct io_kiocb *req, struct io_kiocb **nxt,
 		if (ret2 == -EOPNOTSUPP && (kiocb->ki_flags & IOCB_NOWAIT))
 			ret2 = -EAGAIN;
 		if (!force_nonblock || ret2 != -EAGAIN) {
-			kiocb_done(kiocb, ret2, nxt, req->in_async);
+			kiocb_done(kiocb, ret2, nxt);
 		} else {
 copy_iov:
 			ret = io_setup_async_rw(req, io_size, iovec,
@@ -4523,7 +4521,6 @@ static void io_wq_submit_work(struct io_wq_work **workptr)
 	}
 
 	if (!ret) {
-		req->in_async = true;
 		do {
 			ret = io_issue_sqe(req, NULL, &nxt, false);
 			/*
@@ -5059,7 +5056,6 @@ static int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr,
 			*mm = ctx->sqo_mm;
 		}
 
-		req->in_async = async;
 		req->needs_fixed_file = async;
 		trace_io_uring_submit_sqe(ctx, req->opcode, req->user_data,
 						true, async);
-- 
2.24.0


      parent reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-11 20:01 [PATCH 0/5] async punting improvements for io_uring Pavel Begunkov
2020-02-11 20:01 ` [PATCH 1/5] io_uring: remove REQ_F_MUST_PUNT Pavel Begunkov
2020-02-11 20:01 ` [PATCH 2/5] io_uring: don't call work.func from sync ctx Pavel Begunkov
2020-02-11 20:01 ` [PATCH 3/5] io_uring: fix reassigning work.task_pid from io-wq Pavel Begunkov
2020-02-11 20:21   ` Jens Axboe
2020-02-11 20:57     ` Pavel Begunkov
2020-02-11 20:59       ` Jens Axboe
2020-02-11 20:01 ` [PATCH 4/5] io_uring: add missing io_req_cancelled() Pavel Begunkov
2020-02-11 20:01 ` Pavel Begunkov [this message]

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 \
    --in-reply-to=4ec21bcc4b477808d918efa6ec691469207b1db1.1581450491.git.asml.silence@gmail.com \
    --to=asml.silence@gmail.com \
    --cc=axboe@kernel.dk \
    --cc=io-uring@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    /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

IO-Uring Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/io-uring/0 io-uring/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 io-uring io-uring/ https://lore.kernel.org/io-uring \
		io-uring@vger.kernel.org
	public-inbox-index io-uring

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.io-uring


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git