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[2620:137:e000::1:20]) by mx.google.com with ESMTP id z6-20020aa79586000000b006432e218a1csi1559510pfj.152.2023.05.08.22.15.57; Mon, 08 May 2023 22:16:16 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=HJYP+uAi; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234009AbjEIFCc (ORCPT + 99 others); Tue, 9 May 2023 01:02:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229472AbjEIFCb (ORCPT ); Tue, 9 May 2023 01:02:31 -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 F08AF468B for ; Mon, 8 May 2023 22:02:30 -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 7E95663024 for ; Tue, 9 May 2023 05:02:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2BF9C433EF; Tue, 9 May 2023 05:02:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1683608549; bh=QEnLAg6KWmmWaE0QCgUpcv95BgAw7b19p9B/qGObCw0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HJYP+uAi2vRwXqW5kl6xLiV1L6oR0fXEA5fKSHZRQmhkO3MyWLvOxsmz8c53oWjNn IchXb3JjMpV6jA+j21MP67zL8HCiJ1BtFfYpu+CW+qWMmsXet86gbs4tg+1RD0afuD NZiwGj55xwaYZW9ERtlDwsJaw6fUR4cLkku0kENjmjJcsX6fuvMMUku+ozzBYlHaRA mlUC1aHyIK2Kb5levfotVfbTP9k+EJF5TocsztsV6ORSOj1lcn8Lq95lOS9vUNbGC/ /NXDqNBiHgiPiBF0VdpUBpVGUZlom6fqV280fM6leWloOo7FLIB+RwYaH80ieEFejV T8vCG/tqZ/uyA== Date: Mon, 8 May 2023 22:02:27 -0700 From: Eric Biggers To: youling257 Cc: jack@suse.cz, hch@infradead.org, hch@lst.de, linux-ext4@vger.kernel.org, ritesh.list@gmail.com, tytso@mit.edu Subject: Re: [PATCH v4 12/13] ext4: Stop providing .writepage hook Message-ID: <20230509050227.GA1180@quark.localdomain> References: <20221207112722.22220-12-jack@suse.cz> <20230508175108.6986-1-youling257@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230508175108.6986-1-youling257@gmail.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Tue, May 09, 2023 at 01:51:08AM +0800, youling257 wrote: > I using linux mainline kernel on android. https://github.com/youling257/android-mainline/commits/6.4 https://github.com/youling257/android-mainline/commits/6.3 > "ext4: Stop providing .writepage hook" cause some android app unable to read storage/emulated/0 files, i need to say android esdfs file system storage/emulated is ext4 data/media bind mount. > I want to ask, why android storage/emulated need .writepage hook? "esdfs" doesn't exist upstream, so linux-ext4 can't provide support for it. Also, it doesn't exist in the Android Common Kernels either, so the Android team cannot help you either. - Eric