Commit 130a8276 authored Jan 05, 2026 by Caleb Sander Mateos Committed by Jens Axboe Jan 12, 2026

io_uring/register: drop io_register_enable_rings() submitter_task check



io_register_enable_rings() checks that the io_ring_ctx is
IORING_SETUP_R_DISABLED, which ensures submitter_task hasn't been
assigned by io_uring_create() or a previous io_register_enable_rings()
call. So drop the redundant check that submitter_task is NULL.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent bcd4c957

io_uring/register.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -180,7 +180,7 @@ static int io_register_enable_rings(struct io_ring_ctx *ctx)
		if (!(ctx->flags & IORING_SETUP_R_DISABLED))
		return -EBADFD;

		if (ctx->flags & IORING_SETUP_SINGLE_ISSUER && !ctx->submitter_task) {
		if (ctx->flags & IORING_SETUP_SINGLE_ISSUER) {
		ctx->submitter_task = get_task_struct(current);
		/*
		* Lazy activation attempts would fail if it was polled before