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authorPavel Begunkov <asml.silence@gmail.com>2022-09-06 19:11:17 +0300
committerJens Axboe <axboe@kernel.dk>2022-09-07 19:36:10 +0300
commit336d28a8f38013a069f2d46e73aaa1880ef17a47 (patch)
tree69597f10bc7f1e1b9a02405f016eede1f4d489f1 /io_uring
parentdf6d3422d3eed27afa23df092b3ce147c558d1a8 (diff)
downloadlinux-336d28a8f38013a069f2d46e73aaa1880ef17a47.tar.xz
io_uring: recycle kbuf recycle on tw requeue
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> Link: https://lore.kernel.org/r/a19bc9e211e3184215a58e129b62f440180e9212.1662480490.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/io_uring.c1
1 files changed, 1 insertions, 0 deletions
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: