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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: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250902215108.1925105-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
pull/1354/merge
Caleb Sander Mateos 2025-09-02 15:51:07 -06:00 committed by Jens Axboe
parent 37500634d0
commit 8b9c9a2e7d
1 changed files with 0 additions and 4 deletions
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4
io_uring/register.c
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@ -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;