From: Caleb Sander Mateos <csander@purestorage.com>
Date: Mon, 5 Jan 2026 21:05:42 +0000 (-0700)
Subject: io_uring/register: drop io_register_enable_rings() submitter_task check
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=130a82760718997806a618490f5b7ab06932bd9c;p=thirdparty%2Flinux.git

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>
---

diff --git a/io_uring/register.c b/io_uring/register.c
index 29393f93a4143..a3fef649272ba 100644
--- a/io_uring/register.c
+++ b/io_uring/register.c
@@ -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