Commit 8b9c9a2e authored by Caleb Sander Mateos's avatar Caleb Sander Mateos Committed by Jens Axboe
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io_uring/register: drop redundant submitter_task check 



For IORING_SETUP_SINGLE_ISSUER io_ring_ctx's, io_register_resize_rings()
checks that the current task is the ctx's submitter_task. However, its
caller __io_uring_register() already checks this. Drop the redundant
check in io_register_resize_rings().

Signed-off-by: default avatarCaleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250902215108.1925105-1-csander@purestorage.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 37500634

io_uring/register.c

+0 −4
Original line number Diff line number Diff line
@@ -408,10 +408,6 @@ static int io_register_resize_rings(struct io_ring_ctx *ctx, void __user *arg) 
	struct io_uring_params p;

	int ret;



	/* for single issuer, must be owner resizing */

	if (ctx->flags & IORING_SETUP_SINGLE_ISSUER &&

	    current != ctx->submitter_task)

		return -EEXIST;

	/* limited to DEFER_TASKRUN for now */

	if (!(ctx->flags & IORING_SETUP_DEFER_TASKRUN))

		return -EINVAL;