Commit 4add705e authored by Dylan Yudaken's avatar Dylan Yudaken Committed by Jens Axboe
Browse files

io_uring: remove io_register_submitter 



this is no longer needed, as submitter_task is set at creation time.

Signed-off-by: default avatarDylan Yudaken <dylany@fb.com>
Fixes: 97bbdc06 ("io_uring: add IORING_SETUP_SINGLE_ISSUER")
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 97c96e9f

io_uring/tctx.c

+3 −19
Original line number Diff line number Diff line
@@ -91,20 +91,6 @@ __cold int io_uring_alloc_task_context(struct task_struct *task, 
	return 0;

}



static int io_register_submitter(struct io_ring_ctx *ctx)

{

	int ret = 0;



	mutex_lock(&ctx->uring_lock);

	if (!ctx->submitter_task)

		ctx->submitter_task = get_task_struct(current);

	else if (ctx->submitter_task != current)

		ret = -EEXIST;

	mutex_unlock(&ctx->uring_lock);



	return ret;

}



int __io_uring_add_tctx_node(struct io_ring_ctx *ctx)

{

	struct io_uring_task *tctx = current->io_uring;
@@ -151,11 +137,9 @@ int __io_uring_add_tctx_node_from_submit(struct io_ring_ctx *ctx) 
{

	int ret;



	if (ctx->flags & IORING_SETUP_SINGLE_ISSUER) {

		ret = io_register_submitter(ctx);

		if (ret)

			return ret;

	}

	if (ctx->flags & IORING_SETUP_SINGLE_ISSUER

	    && ctx->submitter_task != current)

		return -EEXIST;



	ret = __io_uring_add_tctx_node(ctx);

	if (ret)