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=-3.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 83982C433E0 for ; Sun, 14 Jun 2020 13:09:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C4B5206D7 for ; Sun, 14 Jun 2020 13:09:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="K0NpbXCN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727025AbgFNNJt (ORCPT ); Sun, 14 Jun 2020 09:09:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59272 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726939AbgFNNJs (ORCPT ); Sun, 14 Jun 2020 09:09:48 -0400 Received: from mail-wr1-x443.google.com (mail-wr1-x443.google.com [IPv6:2a00:1450:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DCD4BC05BD43 for ; Sun, 14 Jun 2020 06:09:47 -0700 (PDT) Received: by mail-wr1-x443.google.com with SMTP id x13so14380474wrv.4 for ; Sun, 14 Jun 2020 06:09:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=CjjGRuVzjjGtMSbsG+YItSmjb7fimRYuP+yDSmPAEnw=; b=K0NpbXCNQw/cEqwsf6z58ZI7HBu/XEIPKIO/yOXsTgpU/aI8tg1glOSTzfpgnh5w+D Yd99Qjpx9aBcShe4r7TrQaJlfrmLlUKAdxfxKPOD6q6+kG7GM5rVnjMzx7W1Cv/eJyIJ jgu/UAOabfuqVo/LNN9T/NkxkHxs9nQsz0RRT1RImgFaffhg4TOjmLmNliJqZSyyij+c sBIkXiZ/3Y6zIb405vcxFKWdy+3rWeXN5i+NMkd6BQ1Hyn7n0AfzFAci+8zxFHbiVJLO +4U0MygJmaSCyh7R/ShAK8mCNHS+iR9FnLcWhOXcG2WjznLJBKcBDP0wUSIqPPO2bS2B 1KuA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=CjjGRuVzjjGtMSbsG+YItSmjb7fimRYuP+yDSmPAEnw=; b=FCLspOkVV8m9OU6HmCb/60sW9Zyz6TvHmD6uZ1M/7UQurCZxquy1V8WTCYg7We5NOw AyGtCldmt0rrmsOPyqOkRu1MAmFrVjhfh5TPqOWFScwxIKBtR7d6mxhuuouMLWiCly82 ODIqxMN1cIOVBwbSVYKeShRF51G/CNHf0T3ygQp7MamGGH1NPXt8OgNuudQwh7dLyTG3 bb2Q+AxmWlmtM+BXryG1Qgflq3Gu2OJqS/vWhuiZLKERKFSG/wBwIkGYfXXMEjt+5dkF Bw5C0GxE6Uvs2jHHYzk3A7IlfSZsRM4HuUxexI8ROhq0MPn94rwAUhaluD0uMAbLET3j edtA== X-Gm-Message-State: AOAM5333t5PHf4sbjSpKEs8FrpfxSb9VTl+Ht4VkSHtozGHCOAhMYXJr xGf6r+SJLXlf8xiBqwYNFAQPKDr6 X-Google-Smtp-Source: ABdhPJxfsA5Gv69bw8c9iTL0cGWe1zZMziFbhF92up9ra91vGXGK2mFQRmQCWNQneLgO5bzO466Mcw== X-Received: by 2002:a5d:554a:: with SMTP id g10mr24968967wrw.334.1592140186364; Sun, 14 Jun 2020 06:09:46 -0700 (PDT) Received: from localhost.localdomain ([5.102.204.95]) by smtp.gmail.com with ESMTPSA id g82sm18458283wmf.1.2020.06.14.06.09.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Jun 2020 06:09:45 -0700 (PDT) From: Amir Goldstein To: Miklos Szeredi Cc: Mike Kravetz , linux-unionfs@vger.kernel.org Subject: [PATCH 0/2] Propagate overlay f_mode from underlying file Date: Sun, 14 Jun 2020 16:09:37 +0300 Message-Id: <20200614130939.7702-1-amir73il@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-unionfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-unionfs@vger.kernel.org Miklos, Following the discussions on hugetlbfs-overlayfs, I wanted to see if we can do better to emulate the underlying file supported ops. Those patches don't actually help the hugetlbfs issue at all and I am not sure they improve anything, but I though it would be better if you had a look to say if there is anything interesting we can get from this. Thanks, Amir. Amir Goldstein (2): ovl: inherit supported ops f_mode flags from final real file ovl: warn about unsupported file operations on upper fs fs/overlayfs/copy_up.c | 11 ++++++++ fs/overlayfs/file.c | 11 ++++++++ fs/overlayfs/overlayfs.h | 5 ++++ fs/overlayfs/super.c | 60 ++++++++++++++++++++++++++-------------- 4 files changed, 66 insertions(+), 21 deletions(-) -- 2.17.1