From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 068C7CCA47A for ; Thu, 16 Jun 2022 09:23:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376658AbiFPJXE (ORCPT ); Thu, 16 Jun 2022 05:23:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1376662AbiFPJXC (ORCPT ); Thu, 16 Jun 2022 05:23:02 -0400 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E91531C90A for ; Thu, 16 Jun 2022 02:23:00 -0700 (PDT) Received: by mail-wm1-x331.google.com with SMTP id z17so430734wmi.1 for ; Thu, 16 Jun 2022 02:23:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=FnpmHNOzLmPzZqlagM4s9zuVri1qJ9NLqujQ99u3Owo=; b=XWnFDQU0Gi/azSH6aKGhHo/JPuqEDbU2VLToGd5eFqPHRErjfXajRLLSmigHGyI/CV WZ1aJqXnky/ENobi7VxM9zVb+MaUqbWONysHgotL3WX/kfe5vESQ2AJpUm9PWaEh1M/b KWvanOI8s7VU7zn/7KWjo4QNVFeLWMjuQ9yWL1PJYkt7HBZSZlhf0Bdl4IB4z4bY5/fi vsY91kGVg5hn0Wr8p+NFMM/xsV4WianZcjJHxOelD8OO5Z2OWSezXJaAcIbN7skFhiVm Fj5c3/Y8OJQO8oe3bOEtGJz2cpIXzXxLd/YfuGLjdFMNa9gbnl+njUu6M2LUodBBPC7U Eo0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=FnpmHNOzLmPzZqlagM4s9zuVri1qJ9NLqujQ99u3Owo=; b=OaSKRo+fhMueKNEviNoKCOmMDPtLGN1Iqid7FB9MEZzO5zGsej90Bvu6RYWZKgSwRl zsaJo3u3FL2R89UWCnJshSgkYb5vbxdbP8c5l8byDreeZl/Ebf5gaEroYT65t+J61zKL esDsvcvrFzWmyXc8jhF5bMAeQUWrZXL8+aaekejJ1wjdIxIFz9fuY3B7gL4DrodiNCgk vNiH2q2xdqXQg4yJlhevNAje3XH9a1GgB81gX0p44TUs8q7ZTh2tibhXz1rlRIxJ/JzB Akml9/R+v0bc9DxcPK7FZtQB37veruQXto2oIE68FhTCiaEXiEj/VSGYR+itonni0HQL hjnw== X-Gm-Message-State: AJIora85lVuQdQJx1Z4wQEHPehbB/sYt17xfnLf1TKfsE4MPAl64XtgZ RJBuU6yABGb45yf1C6Ne37jSUsUhC4RVcQ== X-Google-Smtp-Source: AGRyM1v06kNkBWjrCIbQbTIv2A326E/5I3M2RlnVVJofY4hGOB5l53dCV0kUFjAChJX2X6zU10rfYg== X-Received: by 2002:a05:600c:3510:b0:39c:7fe7:cbd3 with SMTP id h16-20020a05600c351000b0039c7fe7cbd3mr4037494wmq.191.1655371379275; Thu, 16 Jun 2022 02:22:59 -0700 (PDT) Received: from 127.0.0.1localhost (188.28.125.106.threembb.co.uk. [188.28.125.106]) by smtp.gmail.com with ESMTPSA id s6-20020a1cf206000000b0039c975aa553sm1695221wmc.25.2022.06.16.02.22.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Jun 2022 02:22:58 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: Jens Axboe , asml.silence@gmail.com Subject: [PATCH for-next v3 15/16] io_uring: propagate locking state to poll cancel Date: Thu, 16 Jun 2022 10:22:11 +0100 Message-Id: X-Mailer: git-send-email 2.36.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Poll cancellation will be soon need to grab ->uring_lock inside, pass the locking state, i.e. issue_flags, inside the cancellation functions. Signed-off-by: Pavel Begunkov --- io_uring/cancel.c | 7 ++++--- io_uring/cancel.h | 3 ++- io_uring/poll.c | 3 ++- io_uring/poll.h | 3 ++- io_uring/timeout.c | 3 ++- 5 files changed, 12 insertions(+), 7 deletions(-) diff --git a/io_uring/cancel.c b/io_uring/cancel.c index f28f0a7d1272..f07bfd27c98a 100644 --- a/io_uring/cancel.c +++ b/io_uring/cancel.c @@ -78,7 +78,8 @@ static int io_async_cancel_one(struct io_uring_task *tctx, return ret; } -int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd) +int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd, + unsigned issue_flags) { struct io_ring_ctx *ctx = req->ctx; int ret; @@ -93,7 +94,7 @@ int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd) if (!ret) return 0; - ret = io_poll_cancel(ctx, cd); + ret = io_poll_cancel(ctx, cd, issue_flags); if (ret != -ENOENT) return ret; @@ -136,7 +137,7 @@ static int __io_async_cancel(struct io_cancel_data *cd, struct io_kiocb *req, int ret, nr = 0; do { - ret = io_try_cancel(req, cd); + ret = io_try_cancel(req, cd, issue_flags); if (ret == -ENOENT) break; if (!all) diff --git a/io_uring/cancel.h b/io_uring/cancel.h index fd4cb1a2595d..8dd259dc383e 100644 --- a/io_uring/cancel.h +++ b/io_uring/cancel.h @@ -3,5 +3,6 @@ int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags); -int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd); +int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd, + unsigned int issue_flags); void init_hash_table(struct io_hash_table *table, unsigned size); diff --git a/io_uring/poll.c b/io_uring/poll.c index 9c7793f5e93b..07157da1c2cb 100644 --- a/io_uring/poll.c +++ b/io_uring/poll.c @@ -643,7 +643,8 @@ static int __io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd, return req ? 0 : -ENOENT; } -int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd) +int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd, + unsigned issue_flags) { return __io_poll_cancel(ctx, cd, &ctx->cancel_table); } diff --git a/io_uring/poll.h b/io_uring/poll.h index cc75c1567a84..fa3e19790281 100644 --- a/io_uring/poll.h +++ b/io_uring/poll.h @@ -24,7 +24,8 @@ int io_poll_add(struct io_kiocb *req, unsigned int issue_flags); int io_poll_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); int io_poll_remove(struct io_kiocb *req, unsigned int issue_flags); -int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd); +int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd, + unsigned issue_flags); int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags); bool io_poll_remove_all(struct io_ring_ctx *ctx, struct task_struct *tsk, bool cancel_all); diff --git a/io_uring/timeout.c b/io_uring/timeout.c index 69cca42d6835..526fc8b2e3b6 100644 --- a/io_uring/timeout.c +++ b/io_uring/timeout.c @@ -262,6 +262,7 @@ int io_timeout_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd) static void io_req_task_link_timeout(struct io_kiocb *req, bool *locked) { + unsigned issue_flags = *locked ? 0 : IO_URING_F_UNLOCKED; struct io_timeout *timeout = io_kiocb_to_cmd(req); struct io_kiocb *prev = timeout->prev; int ret = -ENOENT; @@ -273,7 +274,7 @@ static void io_req_task_link_timeout(struct io_kiocb *req, bool *locked) .data = prev->cqe.user_data, }; - ret = io_try_cancel(req, &cd); + ret = io_try_cancel(req, &cd, issue_flags); } io_req_set_res(req, ret ?: -ETIME, 0); io_req_complete_post(req); -- 2.36.1