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 00167C6FA82 for ; Fri, 23 Sep 2022 13:29:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231270AbiIWN3R (ORCPT ); Fri, 23 Sep 2022 09:29:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229724AbiIWN3M (ORCPT ); Fri, 23 Sep 2022 09:29:12 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 24A9713BCCD; Fri, 23 Sep 2022 06:29:11 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B53FB62206; Fri, 23 Sep 2022 13:29:10 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C42B8C433C1; Fri, 23 Sep 2022 13:29:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663939750; bh=7GWKDuhtbW6r2KpVH7DUjRqYL50U4cTrwdK0ewzhHyI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=PF8GTxss/DpOVvSfm+7chSANkuylKwulE1LNRSBPBiW14DpRbT7vPLrg6k4lMMr+L Z0Xs2Lb4q4kS9mHeFZkRDnHi2UBksryOXNpcR9i2WD7OXqy7NEdu7M/VNYGhOJdX5T UWDglCD4n5vVQ1P4bdGE9UmNlC4zNQRfB3L15FvFvf9RmZVEKWGIVkJb9GB36Ulc7X qS3dP/aEMri9L0r0IjxWGdda/rpQDSLoZktYMD2KAItuJbaXBeKTnbLSLAjmjXFZOx 2wLWLESfVZ1NPzxHg/Nk6eWw2PMBA26nT7zbAmFnln/39oy9FfDDDgUFyaiXjENOww vK8FKTsBYcdSQ== Date: Fri, 23 Sep 2022 16:29:06 +0300 From: Jarkko Sakkinen To: Kristen Carlson Accardi Cc: linux-kernel@vger.kernel.org, linux-sgx@vger.kernel.org, cgroups@vger.kernel.org, Dave Hansen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , Sean Christopherson Subject: Re: [RFC PATCH 05/20] x86/sgx: Introduce unreclaimable EPC page lists Message-ID: References: <20220922171057.1236139-1-kristen@linux.intel.com> <20220922171057.1236139-6-kristen@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220922171057.1236139-6-kristen@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 22, 2022 at 10:10:42AM -0700, Kristen Carlson Accardi wrote: > From: Sean Christopherson > > Add code to keep track of pages that are not tracked by the reclaimer > in the LRU's "unreclaimable" list. When there is an OOM event and an > enclave must be OOM killed, the EPC pages which are not tracked by > the reclaimer can still be freed. > > Signed-off-by: Sean Christopherson > Signed-off-by: Kristen Carlson Accardi > Cc: Sean Christopherson This could have some description of what is actually happening in this patch. BR, Jarkko