From: Caleb Sander Mateos Date: Fri, 31 Oct 2025 20:34:28 +0000 (-0600) Subject: io_uring: only call io_should_terminate_tw() once for ctx X-Git-Url: https://gentwo.org/gitweb/?a=commitdiff_plain;h=4531d165ee39edb315b42a4a43e29339fa068e51;p=linux%2F.git io_uring: only call io_should_terminate_tw() once for ctx io_fallback_req_func() calls io_should_terminate_tw() on each req's ctx. But since the reqs all come from the ctx's fallback_llist, req->ctx will be ctx for all of the reqs. Therefore, compute ts.cancel as io_should_terminate_tw(ctx) just once, outside the loop. Signed-off-by: Caleb Sander Mateos Signed-off-by: Jens Axboe --- diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 93a1cc2bf383..4e6676ac4662 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -289,10 +289,9 @@ static __cold void io_fallback_req_func(struct work_struct *work) percpu_ref_get(&ctx->refs); mutex_lock(&ctx->uring_lock); - llist_for_each_entry_safe(req, tmp, node, io_task_work.node) { - ts.cancel = io_should_terminate_tw(req->ctx); + ts.cancel = io_should_terminate_tw(ctx); + llist_for_each_entry_safe(req, tmp, node, io_task_work.node) req->io_task_work.func(req, ts); - } io_submit_flush_completions(ctx); mutex_unlock(&ctx->uring_lock); percpu_ref_put(&ctx->refs);