From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 97B8825D8E7; Wed, 9 Apr 2025 10:50:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744195857; cv=none; b=WpokI2+0cv31016YyJkfIqNOZ96ZmzoZRewtF5GqCR5vGnov4Bn7IvRxMGy4zeAcaDdA70/aO/dF3aM1KYDevOQU1KGzi5wqSnIr9iamxtpdzPkzzhsfAbhPcTUkFL/PPcCo4uXwmrf8jmmFNC/3NfNU71KOnSCttu8M6CJK5c4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744195857; c=relaxed/simple; bh=HlVtWoj3LWyiBcoZxrPmX0QXi/NYax4CcC6lrawTBbc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=f4XjV6a1g9reVfh/imMpReTRufdjbKHpBxlRuyMn5HzDrpOsekC/6aKnrqRa8CqRe02Yv4BhKC1SgqF3DhUxQgwGcwfPst3JjqZfglTzETT92B1csHpPmBcUDB4a4OK9SVRxxOaEj4uXWXknqm2hcwGvSzZaQ4/dhlbA/D+bCxs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fSJhimxH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fSJhimxH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92AD3C4CEE3; Wed, 9 Apr 2025 10:50:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744195857; bh=HlVtWoj3LWyiBcoZxrPmX0QXi/NYax4CcC6lrawTBbc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fSJhimxHin3y/ZB3Pleu3u8j+qCxOs5pQ/MD8yAXnWGAwLdK53UFp1b313UBRUubo dL6+a1zQv8pgmZj8HjD2a1G+jcTbYICqmdN1rV9kVlwdEwoAfu+XD8HbiXXKHEYk+B 4386xVetZP27Cza1J3J/vATMiaisNlGll5kax3pkPKkd8gCed0PhzE/7ZfhKKZeJUQ CFLn82aDMJg+Mlt9MnoiFh3Dtc79YiLEknPFI7TvLjmg6i9TGfX+UHYAPu/m0G4P90 Oma/Fv0wwv8+DxDOQqxtpBVaUGyOykCwkf55QGjoukB+JbQ+iKkPNJ5IxCldgWyW/6 PxmDAhNKr3RXg== Date: Wed, 9 Apr 2025 12:50:49 +0200 From: Christian Brauner To: Christoph Hellwig Cc: Zhang Yi , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-block@vger.kernel.org, dm-devel@lists.linux.dev, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org, tytso@mit.edu, djwong@kernel.org, john.g.garry@oracle.com, bmarzins@redhat.com, chaitanyak@nvidia.com, shinichiro.kawasaki@wdc.com, yi.zhang@huawei.com, chengzhihao1@huawei.com, yukuai3@huawei.com, yangerkun@huawei.com Subject: Re: [RFC PATCH -next v3 07/10] fs: introduce FALLOC_FL_WRITE_ZEROES to fallocate Message-ID: <20250409-ausdauer-weingut-4025b274ee63@brauner> References: <20250318073545.3518707-1-yi.zhang@huaweicloud.com> <20250318073545.3518707-8-yi.zhang@huaweicloud.com> <20250409103548.GC4950@lst.de> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250409103548.GC4950@lst.de> On Wed, Apr 09, 2025 at 12:35:48PM +0200, Christoph Hellwig wrote: > On Tue, Mar 18, 2025 at 03:35:42PM +0800, Zhang Yi wrote: > > Users can check the disk support of unmap write zeroes command by > > querying: > > > > /sys/block//queue/write_zeroes_unmap > > No, that is not in any way a good user interface. Users need to be > able to query this on a per-file basis. Agreed. This should get a statx attribute most likely.