__tctx_task_work() guarantees that ctx won't be killed while running
task_works, so we can remove now unnecessary ctx pinning for internally
armed polling.
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
fs/io_uring.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 3cfc50320923..36d0bc506be4 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4780,7 +4780,6 @@ static int __io_async_wake(struct io_kiocb *req, struct io_poll_iocb *poll,
req->result = mask;
req->task_work.func = func;
- percpu_ref_get(&req->ctx->refs);
/*
* If this fails, then the task is exiting. When a task exits, the
@@ -4877,8 +4876,6 @@ static void io_poll_task_func(struct callback_head *cb)
if (nxt)
__io_req_task_submit(nxt);
}
-
- percpu_ref_put(&ctx->refs);
}
static int io_poll_double_wake(struct wait_queue_entry *wait, unsigned mode,
@@ -4985,7 +4982,6 @@ static void io_async_task_func(struct callback_head *cb)
if (io_poll_rewait(req, &apoll->poll)) {
spin_unlock_irq(&ctx->completion_lock);
- percpu_ref_put(&ctx->refs);
return;
}
@@ -5001,7 +4997,6 @@ static void io_async_task_func(struct callback_head *cb)
else
__io_req_task_cancel(req, -ECANCELED);
- percpu_ref_put(&ctx->refs);
kfree(apoll->double_poll);
kfree(apoll);
}
--
2.24.0
