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From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH 5/6] io_uring: refactor io_submit_flush_completions
Date: Sat, 26 Jun 2021 21:40:48 +0100	[thread overview]
Message-ID: <ad85512e12bd3a20d521e9782750300970e5afc8.1624739600.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>

Don't init req_batch before we actually need it. Also, add a small clean
up for req declaration.

Signed-off-by: Pavel Begunkov <[email protected]>
---
 fs/io_uring.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 4dd2213f5454..873cfd4a8761 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2161,22 +2161,22 @@ static void io_submit_flush_completions(struct io_ring_ctx *ctx)
 {
 	struct io_comp_state *cs = &ctx->submit_state.comp;
 	int i, nr = cs->nr;
-	struct io_kiocb *req;
 	struct req_batch rb;
 
-	io_init_req_batch(&rb);
 	spin_lock_irq(&ctx->completion_lock);
 	for (i = 0; i < nr; i++) {
-		req = cs->reqs[i];
+		struct io_kiocb *req = cs->reqs[i];
+
 		__io_cqring_fill_event(ctx, req->user_data, req->result,
 					req->compl.cflags);
 	}
 	io_commit_cqring(ctx);
 	spin_unlock_irq(&ctx->completion_lock);
-
 	io_cqring_ev_posted(ctx);
+
+	io_init_req_batch(&rb);
 	for (i = 0; i < nr; i++) {
-		req = cs->reqs[i];
+		struct io_kiocb *req = cs->reqs[i];
 
 		/* submission and completion refs */
 		if (req_ref_sub_and_test(req, 2))
-- 
2.32.0


  parent reply	other threads:[~2021-06-26 20:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-26 20:40 [PATCH for-next 0/6] small for-next optimisations Pavel Begunkov
2021-06-26 20:40 ` [PATCH 1/6] io_uring: refactor io_arm_poll_handler() Pavel Begunkov
2021-06-26 20:40 ` [PATCH 2/6] io_uring: mainstream sqpoll task_work running Pavel Begunkov
2021-06-26 20:40 ` [PATCH 3/6] io_uring: remove not needed PF_EXITING check Pavel Begunkov
2021-06-26 20:40 ` [PATCH 4/6] io_uring: optimise hot path restricted checks Pavel Begunkov
2021-06-26 20:40 ` Pavel Begunkov [this message]
2021-06-26 20:40 ` [PATCH 6/6] io_uring: pre-initialise some of req fields Pavel Begunkov
2021-06-27 22:23 ` [PATCH for-next 0/6] small for-next optimisations Jens Axboe

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