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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54211C433E0 for ; Tue, 16 Jun 2020 15:44:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3A0BE214DB for ; Tue, 16 Jun 2020 15:44:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592322263; bh=AK6OqC3xja+xnPhxSEPb+ZQP/swy05uCs5cvUpjqHzc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=PBTz2qHWdEFaRjsyVSyRVA3/hh5S101nwJzpCEorkffGT5fFaJ/RA/FCoLrcKMDR2 c5pSI7GGqPPa0AAEppoFnxqb38PH/1b1v7MP2ltm5TVmw/+aOCMNaJSJYRTZH52yE+ VERvF3nCPMhq86Dmmgx2dL1KTXPnC+htsKzszWK8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731339AbgFPPoV (ORCPT ); Tue, 16 Jun 2020 11:44:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:34492 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731968AbgFPPoT (ORCPT ); Tue, 16 Jun 2020 11:44:19 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E2230214DB; Tue, 16 Jun 2020 15:44:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592322259; bh=AK6OqC3xja+xnPhxSEPb+ZQP/swy05uCs5cvUpjqHzc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DZj01Tsb3/ILKpiKzxJ4dzWVgIIa1p8ORa+bV892qrvwNpAq7ZOBjaYh84auFwhK6 DKxd0mHtBMuhkNe8LLins1ZZ+oarXCbs6XgJsN0oylKxF6j7l8v9GWrlAXC3gK9r1t vUadX8Jaj0WC+ZEOCi3mpl4xJtw2SwUDghu6OTJ0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Denis Efremov , Jens Axboe Subject: [PATCH 5.7 055/163] io_uring: use kvfree() in io_sqe_buffer_register() Date: Tue, 16 Jun 2020 17:33:49 +0200 Message-Id: <20200616153109.480954030@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200616153106.849127260@linuxfoundation.org> References: <20200616153106.849127260@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Denis Efremov commit a8c73c1a614f6da6c0b04c393f87447e28cb6de4 upstream. Use kvfree() to free the pages and vmas, since they are allocated by kvmalloc_array() in a loop. Fixes: d4ef647510b1 ("io_uring: avoid page allocation warnings") Signed-off-by: Denis Efremov Signed-off-by: Jens Axboe Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200605093203.40087-1-efremov@linux.com Signed-off-by: Greg Kroah-Hartman --- fs/io_uring.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -7093,8 +7093,8 @@ static int io_sqe_buffer_register(struct ret = 0; if (!pages || nr_pages > got_pages) { - kfree(vmas); - kfree(pages); + kvfree(vmas); + kvfree(pages); pages = kvmalloc_array(nr_pages, sizeof(struct page *), GFP_KERNEL); vmas = kvmalloc_array(nr_pages,