Commit 51509400 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring: inline llist_add() 



We'll need to grab some information from the previous request in the tw
list, inline llist_add(), it'll be used in the following patch.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/f0165493af7b379943c792114b972f331e7d7d10.1680782017.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 8501fe70

io_uring/io_uring.c

+8 −1
Original line number Diff line number Diff line
@@ -1303,8 +1303,15 @@ static __cold void io_fallback_tw(struct io_uring_task *tctx) 
static void io_req_local_work_add(struct io_kiocb *req)

{

	struct io_ring_ctx *ctx = req->ctx;

	struct llist_node *first;



	if (!llist_add(&req->io_task_work.node, &ctx->work_llist))

	first = READ_ONCE(ctx->work_llist.first);

	do {

		req->io_task_work.node.next = first;

	} while (!try_cmpxchg(&ctx->work_llist.first, &first,

			      &req->io_task_work.node));



	if (first)

		return;



	/* needed for the following wake up */