From patchwork Mon Mar 18 22:00:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Begunkov X-Patchwork-Id: 13595968 Received: from mail-wm1-f47.google.com (mail-wm1-f47.google.com [209.85.128.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E3A1C5A7BC; Mon, 18 Mar 2024 22:02:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.47 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710799348; cv=none; b=g8F1O5UDgys7XM6jrUOEHYcG+7zbBz8f8/sJW5bVX05bPPycO445zXAyfY9N1L3TfCM2ouzvaZmO2Gwgw9tq2m8Dnk7CT/Hwt5O/huQG2dv6NJWWfxChbzo5x1jbGtsiQ75YflQadSRGqkJ9bo7QNq+H1wW2IyrfdTvxnwhdxaA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710799348; c=relaxed/simple; bh=oqixOxrfdkDOvec1XoeBE2EM4nMZPOSKrMBoEnsSrdQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nXM54mq6XqXe5SAreygXKjUMB8SqVIn2TFg1nGALN8W0vw/1ya6Y52Vx7V1LHKHXTLF+M43vwqOEN4uk5SLe29CxRCAf3P2Edv0b2ow3XJ/NDtCnRAQZsdX74KBYrSZIWzfWXfp5D0taMMis75Oz2O27t/4WZAr1K1rGq2E6ml4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ciUfa2gT; arc=none smtp.client-ip=209.85.128.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ciUfa2gT" Received: by mail-wm1-f47.google.com with SMTP id 5b1f17b1804b1-41464711dc8so121745e9.1; Mon, 18 Mar 2024 15:02:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1710799344; x=1711404144; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=A5jfmKec2lF2nW2r2UOqdUesI1xPrnav8F/FOUhv5is=; b=ciUfa2gTKfMmshEwuQUR2EgFbjXx8zFuL4tmaOasRZ9mevv5UoBIw2aZ22t5+VPpcv 08OzWgvLTQbAPSJOkHi5Y617tUMJhWkT9ualuPPGVAuehlcADUJyOnJwpX0jjND4sbMK Mq/rn8godJwcdcWxVl2w/O7diC45ZZuEEGfzU8wLl86GkuYq8BDB3lNMIpF3WgFizNNe yf48OdYALU+exadz5NLfsd19hIE1UPn97XGmhV6SIZO3NXFqZolhzIMPe9IRnvPg5Sa3 YWJHqHuiZRq929U8tPLYooN34EfIxMdXkjNVX9R70SaJyaxyNVuJSsUamdHR5UNZpAJJ kLxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710799344; x=1711404144; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=A5jfmKec2lF2nW2r2UOqdUesI1xPrnav8F/FOUhv5is=; b=nkI0c5VqagiGpY5TwwyXLdijlmp4C06hVBEIAIuCIvalY40hZjz88gn0W/mWjicw2E q2OmoUaYxoQL6SFphImsittgzn343FBh0aWAalLjDITlDkj7JGWuQmpeTt59M0+pm26/ wMoD/5R1XLydDxOoylYIGzcX7HEexj330Q7xBLlXH5nfMyA9vgSa1MaOJ3JwlLsMuM90 AQ/ei0Dhoemw650IetyZOfJNo2ICrX0iipabR7G+UoJcl/7myoMHW0AwZfEsCohY7pSj N62x0NF6mJTHruZbVenGiVItxTh5yxAVwShwsd4xEZq/zfyWgi+UP1bKQDJ9yF0uPYOy qeRg== X-Gm-Message-State: AOJu0YzdBhb9M2JkXZICNSw37Wb56bOXllcKFSTyPIE4AxfyNluKutS5 /sjbk2j/hy7ucWhK4W9GCt92mqJUD1qNWUPHWrE/sl2YKaDljO6ptmi0BgnW X-Google-Smtp-Source: AGHT+IEEEHA0oXQ+dQrx9Ww9y2adlnS8rJNy7I1ljbMdN0OV9Yx1K5r/hrjClKbDyMet04dt1eTHVg== X-Received: by 2002:adf:f406:0:b0:33e:3555:bb57 with SMTP id g6-20020adff406000000b0033e3555bb57mr538215wro.42.1710799344202; Mon, 18 Mar 2024 15:02:24 -0700 (PDT) Received: from 127.0.0.1localhost ([85.255.232.181]) by smtp.gmail.com with ESMTPSA id bj25-20020a0560001e1900b0033e68338fbasm2771038wrb.81.2024.03.18.15.02.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Mar 2024 15:02:23 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: linux-block@vger.kernel.org, Jens Axboe , asml.silence@gmail.com, Kanchan Joshi , Ming Lei Subject: [PATCH v3 11/13] io_uring: remove current check from complete_post Date: Mon, 18 Mar 2024 22:00:33 +0000 Message-ID: <24ec27f27db0d8f58c974d8118dca1d345314ddc.1710799188.git.asml.silence@gmail.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 task_work execution is now always locked, and we shouldn't get into io_req_complete_post() from them. That means that complete_post() is always called out of the original task context and we don't even need to check current. Signed-off-by: Pavel Begunkov --- io_uring/io_uring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index f5e2b5bef10f..077c65757281 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -972,7 +972,7 @@ void io_req_complete_post(struct io_kiocb *req, unsigned issue_flags) { struct io_ring_ctx *ctx = req->ctx; - if (ctx->task_complete && ctx->submitter_task != current) { + if (ctx->task_complete) { req->io_task_work.func = io_req_task_complete; io_req_task_work_add(req); } else if (!(issue_flags & IO_URING_F_UNLOCKED) ||