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[23.128.96.18]) by mx.google.com with ESMTP id w15si588375edf.56.2020.11.04.23.04.36; Wed, 04 Nov 2020 23:04:59 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=MXqPgs8+; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726330AbgKEHA6 (ORCPT + 99 others); Thu, 5 Nov 2020 02:00:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725294AbgKEHA6 (ORCPT ); Thu, 5 Nov 2020 02:00:58 -0500 Received: from mail-pf1-x443.google.com (mail-pf1-x443.google.com [IPv6:2607:f8b0:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07B7EC0613CF for ; Wed, 4 Nov 2020 23:00:58 -0800 (PST) Received: by mail-pf1-x443.google.com with SMTP id 72so672959pfv.7 for ; Wed, 04 Nov 2020 23:00:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=In22z4zSRFjmN0f9ZWT4tSWe/e4QLia1xEowLwJnVsw=; b=MXqPgs8+6JTdO/hUoDQw5oReQIcGnaaVfUbxHiTj/WNMBS0cf3z4ohV+gF45hY58w/ aoFliyd9R/tnYceFsDd1i5ZqyVInBUwnOTkO0iGVPUyoNe059GQEoAK6RMQUzn3dMo1l n9M7VKH4+IyCkaIL+7QBE2LQmvswOpQQnMjujNrQlvxsPx87Z28CxZPz+egzh8LAELS1 S+F/AqaP302QLGtQjTyL4M7IxF1We073NibdHPAzDHgpmmJILhf1mJaq6BnvAlrSjSh2 LzOl1rH84hlkjcyzBvUXH9e57VW746Fzr1Vd5+qP9c9nk8Gtt7KQOSjZhfNjGgPBap4m fuoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=In22z4zSRFjmN0f9ZWT4tSWe/e4QLia1xEowLwJnVsw=; b=GKdpuxZF9cQW56NvvodPehCwVZVto1D8WAlUg+nme75T8Aj1f3n/jk3AJegyTy59sM WFB/OmXUpgG5b5gJpXuKdROlfcHpkeU3+2lM48tvS5A2cx97SSc/5DK48z2VDrq3/A+W iIbcRpvE1PTmMWaqdph1Df9My6Ar8LqlFTIaoNgOkE72LYihQd5seFsIoDnMW1/sj7Ua UTBajR9VMR+lm62iWJiNo8OHSuYG53U4qyBQllQDbQJCwp4aI4hBWW8TYF6gMui8ifCb /LvnOFlP0x3honal7nF1RnzBbQDhCGJF5FCMC5ondQTUvE/XRRPXFuMpwo6v42jyeuda Wcsg== X-Gm-Message-State: AOAM533PbHhyRnFt/we0ndKu5M32jAyjG9j0oHSxe5T15zGe70fK0VZx pC2zN7OQIdrWJmCejAJW1rY= X-Received: by 2002:a65:4b84:: with SMTP id t4mr1159089pgq.138.1604559657437; Wed, 04 Nov 2020 23:00:57 -0800 (PST) Received: from localhost ([2401:fa00:8f:203:a6ae:11ff:fe11:4b46]) by smtp.gmail.com with ESMTPSA id c11sm814474pjn.26.2020.11.04.23.00.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Nov 2020 23:00:56 -0800 (PST) Date: Thu, 5 Nov 2020 16:00:54 +0900 From: Sergey Senozhatsky To: Gerd Hoffmann Cc: Sergey Senozhatsky , David Airlie , Daniel Vetter , Suleiman Souhlal , dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/virtio: use kvmalloc for large allocations Message-ID: <20201105070054.GD128655@google.com> References: <20201105014744.1662226-1-senozhatsky@chromium.org> <20201105065233.3td3zuyfmbypjtvq@sirius.home.kraxel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201105065233.3td3zuyfmbypjtvq@sirius.home.kraxel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On (20/11/05 07:52), Gerd Hoffmann wrote: > > - *ents = kmalloc_array(*nents, sizeof(struct virtio_gpu_mem_entry), > > - GFP_KERNEL); > > + *ents = kvmalloc_array(*nents, > > + sizeof(struct virtio_gpu_mem_entry), > > + GFP_KERNEL); > > Shouldn't that be balanced with a kvfree() elsewhere? I think it already is. ents pointer is assigned to vbuf->data_buf, and free_vbuf() already uses kvfree(vbuf->data_buf) to free it. -ss