diff mbox series

[2/2] io_uring: recycle kbuf recycle on tw requeue

Message ID a19bc9e211e3184215a58e129b62f440180e9212.1662480490.git.asml.silence@gmail.com (mailing list archive)
State New
Headers show
Series ring buffer fixes | expand

Commit Message

Pavel Begunkov Sept. 6, 2022, 4:11 p.m. UTC 
When we queue a request via tw for execution it's not going to be
executed immediately, so when io_queue_async() hits IO_APOLL_READY
and queues a tw but doesn't try to recycle/consume the buffer some other
request may try to use the the buffer.

Fixes: c7fb19428d67 ("io_uring: add support for ring mapped supplied buffers")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 io_uring/io_uring.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index f9be9b7eb654..b9640ad5069f 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1728,6 +1728,7 @@  static void io_queue_async(struct io_kiocb *req, int ret)
 
 	switch (io_arm_poll_handler(req, 0)) {
 	case IO_APOLL_READY:
+		io_kbuf_recycle(req, 0);
 		io_req_task_queue(req);
 		break;
 	case IO_APOLL_ABORTED: