From patchwork Thu Jul 7 11:49:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Begunkov X-Patchwork-Id: 12909386 X-Patchwork-Delegate: kuba@kernel.org 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 A2996C43334 for ; Thu, 7 Jul 2022 11:53:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235660AbiGGLxG (ORCPT ); Thu, 7 Jul 2022 07:53:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55576 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235300AbiGGLwV (ORCPT ); Thu, 7 Jul 2022 07:52:21 -0400 Received: from mail-wr1-x42d.google.com (mail-wr1-x42d.google.com [IPv6:2a00:1450:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44C5053D33; Thu, 7 Jul 2022 04:52:11 -0700 (PDT) Received: by mail-wr1-x42d.google.com with SMTP id n10so652456wrc.4; Thu, 07 Jul 2022 04:52:11 -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=FNoKlp/SzKlWKmK/1oNh3mGrQFyB3mtnwPpvEKvsiGw=; b=Y3VVECV5nyDkb5h+3N82nH/dQ3E7F2OgTMBmUTzHgZ43JyTmExa6k6CfS0GBMvTJ+1 CoNLdWWMdKRx235F8de9jx4CQUq3qpPkE7Ef9IneyEdtqvA5qb02scGF4EpNCcpuNApe f8TuIsJgSbreYofNhnywB1TO02RUTZpf30s6ga6jibfQxh4riCxIl+4InY5om8UUD5C+ OfJdmCFuRubUyNNPtmwQwFpZIZGepY1c78xf+N9TwsJKB7VwAwqFc7OIn0+aPNAUI3XY y/wkWqjS/sURH3yRFxfvuYYaYVHg1oTQvt+Qrgg0cnFBtjJJD2xKsZdSbegPH6CQmm47 qGeA== 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=FNoKlp/SzKlWKmK/1oNh3mGrQFyB3mtnwPpvEKvsiGw=; b=1c05pXrsgkOcaSE9LQ7wWLuenOO6orgS5YS4+H1SAi5VHPJt9VnZPxvOxqgqm0VKP6 GPfR49x4wnFDFPOnOqx615Kqkm+iLWBYB/4fByDsY2SLT8DBjXCrmPhtEP8Q4eGGJl7g NhGurngX+vp/YOT44oeyoI7yqFS2+zyb9YuhI/jvw63+4UcM0q2ItKiZ1peczsJeUjZf FGA+Dl4OpowMV4iH2XynxnjdL+74NMIbVA3gThswh+HBSr6JV89yBmEQGfbFZnIsdYWF UFWJEzx3BtarlvWDMwU5hzHqKm7KG9XSw9cQPOThctk6Eyr33PtC5/8A4effDXTGFje8 Z4gA== X-Gm-Message-State: AJIora8YGfG5sePMZcRjD0UTCqBaZElcYuYaV2JppvHnauDupI0RMPqR 16TWBaJ91hCNYNAg2RnXaBBc/5j7oY7VQ/P4Q/M= X-Google-Smtp-Source: AGRyM1vpEFSGS6wbdfQ3p+XZzzOJ8na4RMVJfyFlyF75WuRNegLPfoQfnEHtqVnTL1ZTL58ugNlX6w== X-Received: by 2002:a5d:5846:0:b0:21b:c444:9913 with SMTP id i6-20020a5d5846000000b0021bc4449913mr39721499wrf.128.1657194729572; Thu, 07 Jul 2022 04:52:09 -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 u2-20020a5d5142000000b0021b966abc19sm37982131wrt.19.2022.07.07.04.52.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Jul 2022 04:52:09 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: "David S . Miller" , Jakub Kicinski , Jonathan Lemon , Willem de Bruijn , Jens Axboe , David Ahern , kernel-team@fb.com, Pavel Begunkov Subject: [PATCH net-next v4 20/27] io_uring: account locked pages for non-fixed zc Date: Thu, 7 Jul 2022 12:49:51 +0100 Message-Id: X-Mailer: git-send-email 2.36.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Fixed buffers are RLIMIT_MEMLOCK accounted, however it doesn't cover iovec based zerocopy sends. Do the accounting on the io_uring side. Signed-off-by: Pavel Begunkov --- io_uring/net.c | 1 + io_uring/notif.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/io_uring/net.c b/io_uring/net.c index 399267e8f1ef..69273d4f4ef0 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -724,6 +724,7 @@ int io_sendzc(struct io_kiocb *req, unsigned int issue_flags) ret = import_single_range(WRITE, zc->buf, zc->len, &iov, &msg.msg_iter); if (unlikely(ret)) return ret; + mm_account_pinned_pages(¬if->uarg.mmp, zc->len); msg_flags = zc->msg_flags | MSG_ZEROCOPY; if (issue_flags & IO_URING_F_NONBLOCK) diff --git a/io_uring/notif.c b/io_uring/notif.c index e6d98dc208c7..c5179e5c1cd6 100644 --- a/io_uring/notif.c +++ b/io_uring/notif.c @@ -14,7 +14,13 @@ static void __io_notif_complete_tw(struct callback_head *cb) struct io_notif *notif = container_of(cb, struct io_notif, task_work); struct io_rsrc_node *rsrc_node = notif->rsrc_node; struct io_ring_ctx *ctx = notif->ctx; + struct mmpin *mmp = ¬if->uarg.mmp; + if (mmp->user) { + atomic_long_sub(mmp->num_pg, &mmp->user->locked_vm); + free_uid(mmp->user); + mmp->user = NULL; + } if (likely(notif->task)) { io_put_task(notif->task, 1); notif->task = NULL;