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io_uring/register: drop io_register_enable_rings() submitter_task check

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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>
This commit is contained in:
Caleb Sander Mateos 2026-01-05 14:05:42 -07:00 committed by Jens Axboe
parent bcd4c95737
commit 130a827607
1 changed files with 1 additions and 1 deletions
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2
io_uring/register.c
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@ -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