public inbox for [email protected]
 help / color / mirror / Atom feed
From: Dylan Yudaken <[email protected]>
To: Jens Axboe <[email protected]>,
	Pavel Begunkov <[email protected]>,
	<[email protected]>
Cc: <[email protected]>, <[email protected]>,
	Dylan Yudaken <[email protected]>
Subject: [PATCH v2 for-next 02/12] io_uring: restore bgid in io_put_kbuf
Date: Thu, 30 Jun 2022 02:12:21 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

Attempt to restore bgid. This is needed when recycling unused buffers as
the next time around it will want the correct bgid.

Signed-off-by: Dylan Yudaken <[email protected]>
---
 io_uring/kbuf.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/io_uring/kbuf.h b/io_uring/kbuf.h
index 3d48f1ab5439..d9adedac5e9d 100644
--- a/io_uring/kbuf.h
+++ b/io_uring/kbuf.h
@@ -96,16 +96,21 @@ static inline void io_kbuf_recycle(struct io_kiocb *req, unsigned issue_flags)
 static inline unsigned int __io_put_kbuf_list(struct io_kiocb *req,
 					      struct list_head *list)
 {
+	unsigned int ret = IORING_CQE_F_BUFFER | (req->buf_index << IORING_CQE_BUFFER_SHIFT);
+
 	if (req->flags & REQ_F_BUFFER_RING) {
-		if (req->buf_list)
+		if (req->buf_list) {
+			req->buf_index = req->buf_list->bgid;
 			req->buf_list->head++;
+		}
 		req->flags &= ~REQ_F_BUFFER_RING;
 	} else {
+		req->buf_index = req->kbuf->bgid;
 		list_add(&req->kbuf->list, list);
 		req->flags &= ~REQ_F_BUFFER_SELECTED;
 	}
 
-	return IORING_CQE_F_BUFFER | (req->buf_index << IORING_CQE_BUFFER_SHIFT);
+	return ret;
 }
 
 static inline unsigned int io_put_kbuf_comp(struct io_kiocb *req)
-- 
2.30.2


  parent reply	other threads:[~2022-06-30  9:14 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-30  9:12 [PATCH v2 for-next 00/12] io_uring: multishot recv Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 01/12] io_uring: allow 0 length for buffer select Dylan Yudaken
2022-06-30  9:12 ` Dylan Yudaken [this message]
2022-06-30  9:12 ` [PATCH v2 for-next 03/12] io_uring: allow iov_len = 0 for recvmsg and " Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 04/12] io_uring: recycle buffers on error Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 05/12] io_uring: clean up io_poll_check_events return values Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 06/12] io_uring: add IOU_STOP_MULTISHOT return code Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 07/12] io_uring: add allow_overflow to io_post_aux_cqe Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 08/12] io_uring: fix multishot poll on overflow Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 09/12] io_uring: fix multishot accept ordering Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 10/12] io_uring: multishot recv Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 11/12] io_uring: fix io_uring_cqe_overflow trace format Dylan Yudaken
2022-06-30  9:12 ` [PATCH v2 for-next 12/12] io_uring: only trace one of complete or overflow Dylan Yudaken
2022-06-30 20:19 ` [PATCH v2 for-next 00/12] io_uring: multishot recv Jens Axboe
2022-06-30 20:32 ` 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] \
    [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