From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 25431153BE2 for ; Mon, 29 Jan 2024 15:32:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706542357; cv=none; b=QbfhYmqZIsf10yiro5MBQWNcw1vE6S4Gz/4apI5hweRq7iGWgpbG+AzbzA+2cgk9EP+Xujz5+3zlbQ9XYYmnjRMgHW2mhH0r2yNrDOh5tO15iN8kMvCyn8ZvnZqPy6DlN09/nzGAs0zorQd+SE/jERptn8dK91My7kUpPP5XAB8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706542357; c=relaxed/simple; bh=Mw0j4P1xB2c0V+gMkZ2qFb7wY8Y0fpTTiOBCogVEzVo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dfjbLRXiMEXPqI+xt+Ra5lqqIwNEtOwm7dKfC9LIgGMVI6et2ErtK+do/zaDpI+hHWY6/6Hszo24qZNfU4KMaXSSM+omXq2i+osOVS7xIHvUmmbTHjSZYXpyb2VfHc6IX0uXD75lDS9Qi1vs0RAOSlOSlvdKMQAZkWLCd2yDIBk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=ChG+i6Q9; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ChG+i6Q9" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=3aVnCGk29L2rhujr2aTpW9aLlGfIegjqrzrJzIw5iLw=; b=ChG+i6Q9gxVGP2F149zZNEk/LJ qm03Dn1AtPgV0I3AWoNOjkXTczRbOaMwqDg/qdM+YNU4p6XISMSFEkomxX7cIf8c/s27tBcqEZ93G 2rbOqWCII7PB8EcMkuSKPG2SZDv0wsVXj66qI2kdp6q0oVK4z2VEU+BwMXc3NuI+IzQyu60Vk0DfU Vt0SjEa1AUiw7j9I+Q7inTndbfS6Kxa7ZCjY9IaCBkK9BhazLlrwFgDgyNUn/NVVNutAptem3itWe f9pNFWhmBHTMaZxvd3gVAlJNVJTN7Ngy6eZXvffYsQO/HbpeIpT3aV1dXxIb982I4QYzZEA5OiAJf L2mObySw==; Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUTcf-00000006zLO-2nnk; Mon, 29 Jan 2024 15:32:33 +0000 Date: Mon, 29 Jan 2024 15:32:33 +0000 From: Matthew Wilcox To: Tony Solomonik Cc: axboe@kernel.dk, linux-fsdevel@vger.kernel.org, brauner@kernel.org Subject: Re: [PATCH v8 1/2] Add do_ftruncate that truncates a struct file Message-ID: References: <20240124083301.8661-1-tony.solomonik@gmail.com> <20240129151507.14885-1-tony.solomonik@gmail.com> <20240129151507.14885-2-tony.solomonik@gmail.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240129151507.14885-2-tony.solomonik@gmail.com> On Mon, Jan 29, 2024 at 05:15:06PM +0200, Tony Solomonik wrote: > do_sys_ftruncate receives a file descriptor, fgets the struct file, and > finally actually truncates the file. > > do_ftruncate allows for passing in a file directly, with the caller > already holding a reference to it. > > Signed-off-by: Tony Solomonik Reviewed-by: Matthew Wilcox (Oracle)