[PATCH 6/6] io_uring: remove unused return from io_disarm_next

Pavel Begunkov
2022-09-08T15:59:09Z

We removed conditional io_commit_cqring_flush() guarding against
spurious eventfd and the io_disarm_next()'s return value is not used
anymore, just void it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
io_uring/timeout.c | 13 +++----------
io_uring/timeout.h | 2 +-
2 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/io_uring/timeout.c b/io_uring/timeout.c
index 78ea2c64b70e..e8a8c2099480 100644
--- a/io_uring/timeout.c
+++ b/io_uring/timeout.c
@@ -149,11 +149,10 @@ static inline void io_remove_next_linked(struct io_kiocb *req)
nxt->link = NULL;
}

-bool io_disarm_next(struct io_kiocb *req)
+void io_disarm_next(struct io_kiocb *req)
__must_hold(&req->ctx->completion_lock)
{
struct io_kiocb *link = NULL;
- bool posted = false;

if (req->flags & REQ_F_ARM_LTIMEOUT) {
link = req->link;
@@ -161,7 +160,6 @@ bool io_disarm_next(struct io_kiocb *req)
if (link && link->opcode == IORING_OP_LINK_TIMEOUT) {
io_remove_next_linked(req);
io_req_tw_post_queue(link, -ECANCELED, 0);
- posted = true;
}
} else if (req->flags & REQ_F_LINK_TIMEOUT) {
struct io_ring_ctx *ctx = req->ctx;
@@ -169,17 +167,12 @@ bool io_disarm_next(struct io_kiocb *req)
spin_lock_irq(&ctx->timeout_lock);
link = io_disarm_linked_timeout(req);
spin_unlock_irq(&ctx->timeout_lock);
- if (link) {
- posted = true;
+ if (link)
io_req_tw_post_queue(link, -ECANCELED, 0);
- }
}
if (unlikely((req->flags & REQ_F_FAIL) &&
- !(req->flags & REQ_F_HARDLINK))) {
- posted |= (req->link != NULL);
+ !(req->flags & REQ_F_HARDLINK)))
io_fail_links(req);
- }
- return posted;
}

struct io_kiocb *__io_disarm_linked_timeout(struct io_kiocb *req,
diff --git a/io_uring/timeout.h b/io_uring/timeout.h
index 858c62644897..a6939f18313e 100644
--- a/io_uring/timeout.h
+++ b/io_uring/timeout.h
@@ -27,7 +27,7 @@ int io_timeout_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd);
__cold bool io_kill_timeouts(struct io_ring_ctx *ctx, struct task_struct *tsk,
bool cancel_all);
void io_queue_linked_timeout(struct io_kiocb *req);
-bool io_disarm_next(struct io_kiocb *req);
+void io_disarm_next(struct io_kiocb *req);

int io_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_link_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
--
2.37.2