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authorPavel Begunkov <asml.silence@gmail.com>2019-11-19 23:32:48 +0300
committerJens Axboe <axboe@kernel.dk>2019-11-25 19:56:06 -0700
commitd3b35796b1e3f118017491d621f624e0de7ff9fb (patch)
tree2cb019cf69437f4cb6c91aa8e9d5c077d72b59d5 /fs/io_uring.c
parentio-wq: remove extra space characters (diff)
downloadlinux-dev-d3b35796b1e3f118017491d621f624e0de7ff9fb.tar.xz
linux-dev-d3b35796b1e3f118017491d621f624e0de7ff9fb.zip
io_uring: break links for failed defer
If io_req_defer() failed, it needs to cancel a dependant link. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
-rw-r--r--fs/io_uring.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 6550b7eab7d2..c1226f609e18 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2958,6 +2958,8 @@ static void io_queue_sqe(struct io_kiocb *req)
if (ret) {
if (ret != -EIOCBQUEUED) {
io_cqring_add_event(req, ret);
+ if (req->flags & REQ_F_LINK)
+ req->flags |= REQ_F_FAIL_LINK;
io_double_put_req(req);
}
} else
@@ -2990,6 +2992,8 @@ static void io_queue_link_head(struct io_kiocb *req, struct io_kiocb *shadow)
if (ret != -EIOCBQUEUED) {
err:
io_cqring_add_event(req, ret);
+ if (req->flags & REQ_F_LINK)
+ req->flags |= REQ_F_FAIL_LINK;
io_double_put_req(req);
if (shadow)
__io_free_req(shadow);